Merge "ASL version-based validation of required and unexpected fields, part 1" into main
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/AslConverter.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/AslConverter.java
index 191f38d..718d898 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/AslConverter.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/AslConverter.java
@@ -62,13 +62,11 @@
                         XmlUtils.getSingleChildElement(
                                 document, XmlUtils.HR_TAG_APP_METADATA_BUNDLES, true);
 
-                return new AndroidSafetyLabelFactory()
-                        .createFromHrElements(XmlUtils.listOf(appMetadataBundles));
+                return new AndroidSafetyLabelFactory().createFromHrElement(appMetadataBundles);
             case ON_DEVICE:
                 Element bundleEle =
                         XmlUtils.getSingleChildElement(document, XmlUtils.OD_TAG_BUNDLE, true);
-                return new AndroidSafetyLabelFactory()
-                        .createFromOdElements(XmlUtils.listOf(bundleEle));
+                return new AndroidSafetyLabelFactory().createFromOdElement(bundleEle);
             default:
                 throw new IllegalStateException("Unrecognized input format.");
         }
@@ -91,14 +89,10 @@
 
         switch (format) {
             case HUMAN_READABLE:
-                for (var child : asl.toHrDomElements(document)) {
-                    document.appendChild(child);
-                }
+                document.appendChild(asl.toHrDomElement(document));
                 break;
             case ON_DEVICE:
-                for (var child : asl.toOdDomElements(document)) {
-                    document.appendChild(child);
-                }
+                document.appendChild(asl.toOdDomElement(document));
                 break;
             default:
                 throw new IllegalStateException("Unrecognized input format.");
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AndroidSafetyLabel.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AndroidSafetyLabel.java
index 72140a1..8b2fd93 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AndroidSafetyLabel.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AndroidSafetyLabel.java
@@ -21,8 +21,6 @@
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
-import java.util.List;
-
 public class AndroidSafetyLabel implements AslMarshallable {
 
     private final Long mVersion;
@@ -46,36 +44,34 @@
     }
 
     /** Creates an on-device DOM element from an {@link AndroidSafetyLabel} */
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    public Element toOdDomElement(Document doc) {
         Element aslEle = doc.createElement(XmlUtils.OD_TAG_BUNDLE);
         aslEle.appendChild(XmlUtils.createOdLongEle(doc, XmlUtils.OD_NAME_VERSION, mVersion));
         if (mSafetyLabels != null) {
-            XmlUtils.appendChildren(aslEle, mSafetyLabels.toOdDomElements(doc));
+            aslEle.appendChild(mSafetyLabels.toOdDomElement(doc));
         }
         if (mSystemAppSafetyLabel != null) {
-            XmlUtils.appendChildren(aslEle, mSystemAppSafetyLabel.toOdDomElements(doc));
+            aslEle.appendChild(mSystemAppSafetyLabel.toOdDomElement(doc));
         }
         if (mTransparencyInfo != null) {
-            XmlUtils.appendChildren(aslEle, mTransparencyInfo.toOdDomElements(doc));
+            aslEle.appendChild(mTransparencyInfo.toOdDomElement(doc));
         }
-        return XmlUtils.listOf(aslEle);
+        return aslEle;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
-    public List<Element> toHrDomElements(Document doc) {
+    public Element toHrDomElement(Document doc) {
         Element aslEle = doc.createElement(XmlUtils.HR_TAG_APP_METADATA_BUNDLES);
         aslEle.setAttribute(XmlUtils.HR_ATTR_VERSION, String.valueOf(mVersion));
         if (mSafetyLabels != null) {
-            XmlUtils.appendChildren(aslEle, mSafetyLabels.toHrDomElements(doc));
+            aslEle.appendChild(mSafetyLabels.toHrDomElement(doc));
         }
         if (mSystemAppSafetyLabel != null) {
-            XmlUtils.appendChildren(aslEle, mSystemAppSafetyLabel.toHrDomElements(doc));
+            aslEle.appendChild(mSystemAppSafetyLabel.toHrDomElement(doc));
         }
         if (mTransparencyInfo != null) {
-            XmlUtils.appendChildren(aslEle, mTransparencyInfo.toHrDomElements(doc));
+            aslEle.appendChild(mTransparencyInfo.toHrDomElement(doc));
         }
-        return XmlUtils.listOf(aslEle);
+        return aslEle;
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AndroidSafetyLabelFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AndroidSafetyLabelFactory.java
index c53cbbf..b9eb2a35 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AndroidSafetyLabelFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AndroidSafetyLabelFactory.java
@@ -21,65 +21,117 @@
 
 import org.w3c.dom.Element;
 
-import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
 public class AndroidSafetyLabelFactory implements AslMarshallableFactory<AndroidSafetyLabel> {
+    private final Map<Long, Set<String>> mRecognizedHrAttrs =
+            Map.ofEntries(Map.entry(1L, Set.of(XmlUtils.HR_ATTR_VERSION)));
+    private final Map<Long, Set<String>> mRequiredHrAttrs =
+            Map.ofEntries(Map.entry(1L, Set.of(XmlUtils.HR_ATTR_VERSION)));
+    private final Map<Long, Set<String>> mRecognizedHrEles =
+            Map.ofEntries(
+                    Map.entry(
+                            1L,
+                            Set.of(
+                                    XmlUtils.HR_TAG_SYSTEM_APP_SAFETY_LABEL,
+                                    XmlUtils.HR_TAG_SAFETY_LABELS,
+                                    XmlUtils.HR_TAG_TRANSPARENCY_INFO)));
+    private final Map<Long, Set<String>> mRequiredHrEles =
+            Map.ofEntries(
+                    Map.entry(1L, Set.of()),
+                    Map.entry(
+                            2L,
+                            Set.of(
+                                    XmlUtils.HR_TAG_SYSTEM_APP_SAFETY_LABEL,
+                                    XmlUtils.HR_TAG_TRANSPARENCY_INFO)));
+    private final Map<Long, Set<String>> mRecognizedOdEleNames =
+            Map.ofEntries(
+                    Map.entry(
+                            1L,
+                            Set.of(
+                                    XmlUtils.OD_NAME_VERSION,
+                                    XmlUtils.OD_NAME_SAFETY_LABELS,
+                                    XmlUtils.OD_NAME_SYSTEM_APP_SAFETY_LABEL,
+                                    XmlUtils.OD_NAME_TRANSPARENCY_INFO)));
+    private final Map<Long, Set<String>> mRequiredOdEleNames =
+            Map.ofEntries(
+                    Map.entry(1L, Set.of(XmlUtils.OD_NAME_VERSION)),
+                    Map.entry(
+                            2L,
+                            Set.of(
+                                    XmlUtils.OD_NAME_VERSION,
+                                    XmlUtils.OD_NAME_SYSTEM_APP_SAFETY_LABEL,
+                                    XmlUtils.OD_NAME_TRANSPARENCY_INFO)));
 
     /** Creates an {@link AndroidSafetyLabel} from human-readable DOM element */
-    @Override
-    public AndroidSafetyLabel createFromHrElements(List<Element> appMetadataBundles)
+    public AndroidSafetyLabel createFromHrElement(Element appMetadataBundlesEle)
             throws MalformedXmlException {
-        Element appMetadataBundlesEle = XmlUtils.getSingleElement(appMetadataBundles);
         long version = XmlUtils.tryGetVersion(appMetadataBundlesEle);
+        XmlUtils.throwIfExtraneousAttributes(
+                appMetadataBundlesEle, XmlUtils.getMostRecentVersion(mRecognizedHrAttrs, version));
+        XmlUtils.throwIfExtraneousChildrenHr(
+                appMetadataBundlesEle, XmlUtils.getMostRecentVersion(mRecognizedHrEles, version));
 
         Element safetyLabelsEle =
                 XmlUtils.getSingleChildElement(
-                        appMetadataBundlesEle, XmlUtils.HR_TAG_SAFETY_LABELS, false);
+                        appMetadataBundlesEle,
+                        XmlUtils.HR_TAG_SAFETY_LABELS,
+                        XmlUtils.getMostRecentVersion(mRequiredHrEles, version));
         SafetyLabels safetyLabels =
-                new SafetyLabelsFactory().createFromHrElements(XmlUtils.listOf(safetyLabelsEle));
+                new SafetyLabelsFactory().createFromHrElement(safetyLabelsEle, version);
 
         Element systemAppSafetyLabelEle =
                 XmlUtils.getSingleChildElement(
-                        appMetadataBundlesEle, XmlUtils.HR_TAG_SYSTEM_APP_SAFETY_LABEL, false);
+                        appMetadataBundlesEle,
+                        XmlUtils.HR_TAG_SYSTEM_APP_SAFETY_LABEL,
+                        XmlUtils.getMostRecentVersion(mRequiredHrEles, version));
         SystemAppSafetyLabel systemAppSafetyLabel =
                 new SystemAppSafetyLabelFactory()
-                        .createFromHrElements(XmlUtils.listOf(systemAppSafetyLabelEle));
+                        .createFromHrElement(systemAppSafetyLabelEle, version);
 
         Element transparencyInfoEle =
                 XmlUtils.getSingleChildElement(
-                        appMetadataBundlesEle, XmlUtils.HR_TAG_TRANSPARENCY_INFO, false);
+                        appMetadataBundlesEle,
+                        XmlUtils.HR_TAG_TRANSPARENCY_INFO,
+                        XmlUtils.getMostRecentVersion(mRequiredHrEles, version));
         TransparencyInfo transparencyInfo =
-                new TransparencyInfoFactory()
-                        .createFromHrElements(XmlUtils.listOf(transparencyInfoEle));
+                new TransparencyInfoFactory().createFromHrElement(transparencyInfoEle, version);
 
         return new AndroidSafetyLabel(
                 version, systemAppSafetyLabel, safetyLabels, transparencyInfo);
     }
 
     /** Creates an {@link AndroidSafetyLabel} from on-device DOM elements */
-    @Override
-    public AndroidSafetyLabel createFromOdElements(List<Element> elements)
-            throws MalformedXmlException {
-        Element bundleEle = XmlUtils.getSingleElement(elements);
+    public AndroidSafetyLabel createFromOdElement(Element bundleEle) throws MalformedXmlException {
         Long version = XmlUtils.getOdLongEle(bundleEle, XmlUtils.OD_NAME_VERSION, true);
+        XmlUtils.throwIfExtraneousChildrenOd(
+                bundleEle, XmlUtils.getMostRecentVersion(mRecognizedOdEleNames, version));
 
         Element safetyLabelsEle =
-                XmlUtils.getOdPbundleWithName(bundleEle, XmlUtils.OD_NAME_SAFETY_LABELS, false);
+                XmlUtils.getOdPbundleWithName(
+                        bundleEle,
+                        XmlUtils.OD_NAME_SAFETY_LABELS,
+                        XmlUtils.getMostRecentVersion(mRequiredOdEleNames, version));
         SafetyLabels safetyLabels =
-                new SafetyLabelsFactory().createFromOdElements(XmlUtils.listOf(safetyLabelsEle));
+                new SafetyLabelsFactory().createFromOdElement(safetyLabelsEle, version);
 
         Element systemAppSafetyLabelEle =
                 XmlUtils.getOdPbundleWithName(
-                        bundleEle, XmlUtils.OD_NAME_SYSTEM_APP_SAFETY_LABEL, false);
+                        bundleEle,
+                        XmlUtils.OD_NAME_SYSTEM_APP_SAFETY_LABEL,
+                        XmlUtils.getMostRecentVersion(mRequiredOdEleNames, version));
         SystemAppSafetyLabel systemAppSafetyLabel =
                 new SystemAppSafetyLabelFactory()
-                        .createFromOdElements(XmlUtils.listOf(systemAppSafetyLabelEle));
+                        .createFromOdElement(systemAppSafetyLabelEle, version);
 
         Element transparencyInfoEle =
-                XmlUtils.getOdPbundleWithName(bundleEle, XmlUtils.OD_NAME_TRANSPARENCY_INFO, false);
+                XmlUtils.getOdPbundleWithName(
+                        bundleEle,
+                        XmlUtils.OD_NAME_TRANSPARENCY_INFO,
+                        XmlUtils.getMostRecentVersion(mRequiredOdEleNames, version));
         TransparencyInfo transparencyInfo =
-                new TransparencyInfoFactory()
-                        .createFromOdElements(XmlUtils.listOf(transparencyInfoEle));
+                new TransparencyInfoFactory().createFromOdElement(transparencyInfoEle, version);
 
         return new AndroidSafetyLabel(
                 version, systemAppSafetyLabel, safetyLabels, transparencyInfo);
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AppInfo.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AppInfo.java
index f397225..d2557ae 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AppInfo.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AppInfo.java
@@ -25,36 +25,107 @@
 
 /** AppInfo representation */
 public class AppInfo implements AslMarshallable {
-    private final Boolean mApsCompliant;
+    private final String mTitle;
+    private final String mDescription;
+    private final Boolean mContainsAds;
+    private final Boolean mObeyAps;
+    private final Boolean mAdsFingerprinting;
+    private final Boolean mSecurityFingerprinting;
     private final String mPrivacyPolicy;
+    private final List<String> mSecurityEndpoints;
     private final List<String> mFirstPartyEndpoints;
     private final List<String> mServiceProviderEndpoints;
+    private final String mCategory;
+    private final String mEmail;
+    private final String mWebsite;
+
+    private final Boolean mApsCompliant;
+    private final String mDeveloperId;
+    private final String mApplicationId;
+
+    // private final String mPrivacyPolicy;
+    // private final List<String> mFirstPartyEndpoints;
+    // private final List<String> mServiceProviderEndpoints;
 
     public AppInfo(
-            Boolean apsCompliant,
+            String title,
+            String description,
+            Boolean containsAds,
+            Boolean obeyAps,
+            Boolean adsFingerprinting,
+            Boolean securityFingerprinting,
             String privacyPolicy,
+            List<String> securityEndpoints,
             List<String> firstPartyEndpoints,
-            List<String> serviceProviderEndpoints) {
-        this.mApsCompliant = apsCompliant;
+            List<String> serviceProviderEndpoints,
+            String category,
+            String email,
+            String website,
+            Boolean apsCompliant,
+            String developerId,
+            String applicationId) {
+        this.mTitle = title;
+        this.mDescription = description;
+        this.mContainsAds = containsAds;
+        this.mObeyAps = obeyAps;
+        this.mAdsFingerprinting = adsFingerprinting;
+        this.mSecurityFingerprinting = securityFingerprinting;
         this.mPrivacyPolicy = privacyPolicy;
+        this.mSecurityEndpoints = securityEndpoints;
         this.mFirstPartyEndpoints = firstPartyEndpoints;
         this.mServiceProviderEndpoints = serviceProviderEndpoints;
+        this.mCategory = category;
+        this.mEmail = email;
+        this.mWebsite = website;
+        this.mApsCompliant = apsCompliant;
+        this.mDeveloperId = developerId;
+        this.mApplicationId = applicationId;
     }
 
     /** Creates an on-device DOM element from the {@link SafetyLabels}. */
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    public Element toOdDomElement(Document doc) {
         Element appInfoEle = XmlUtils.createPbundleEleWithName(doc, XmlUtils.OD_NAME_APP_INFO);
-        if (this.mApsCompliant != null) {
+
+        if (this.mTitle != null) {
+            appInfoEle.appendChild(XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_TITLE, mTitle));
+        }
+        if (this.mDescription != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_DESCRIPTION, mDescription));
+        }
+        if (this.mContainsAds != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdBooleanEle(doc, XmlUtils.OD_NAME_CONTAINS_ADS, mContainsAds));
+        }
+        if (this.mObeyAps != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdBooleanEle(doc, XmlUtils.OD_NAME_OBEY_APS, mObeyAps));
+        }
+        if (this.mAdsFingerprinting != null) {
             appInfoEle.appendChild(
                     XmlUtils.createOdBooleanEle(
-                            doc, XmlUtils.OD_NAME_APS_COMPLIANT, mApsCompliant));
+                            doc, XmlUtils.OD_NAME_ADS_FINGERPRINTING, mAdsFingerprinting));
+        }
+        if (this.mSecurityFingerprinting != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdBooleanEle(
+                            doc,
+                            XmlUtils.OD_NAME_SECURITY_FINGERPRINTING,
+                            mSecurityFingerprinting));
         }
         if (this.mPrivacyPolicy != null) {
             appInfoEle.appendChild(
                     XmlUtils.createOdStringEle(
                             doc, XmlUtils.OD_NAME_PRIVACY_POLICY, mPrivacyPolicy));
         }
+        if (this.mSecurityEndpoints != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdArray(
+                            doc,
+                            XmlUtils.OD_TAG_STRING_ARRAY,
+                            XmlUtils.OD_NAME_SECURITY_ENDPOINTS,
+                            mSecurityEndpoints));
+        }
         if (this.mFirstPartyEndpoints != null) {
             appInfoEle.appendChild(
                     XmlUtils.createOdArray(
@@ -71,27 +142,88 @@
                             XmlUtils.OD_NAME_SERVICE_PROVIDER_ENDPOINTS,
                             mServiceProviderEndpoints));
         }
-        return XmlUtils.listOf(appInfoEle);
+        if (this.mCategory != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_CATEGORY, this.mCategory));
+        }
+        if (this.mEmail != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_EMAIL, this.mEmail));
+        }
+        if (this.mWebsite != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_WEBSITE, this.mWebsite));
+        }
+
+        if (this.mApsCompliant != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdBooleanEle(
+                            doc, XmlUtils.OD_NAME_APS_COMPLIANT, mApsCompliant));
+        }
+        if (this.mDeveloperId != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_DEVELOPER_ID, mDeveloperId));
+        }
+        if (this.mApplicationId != null) {
+            appInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(
+                            doc, XmlUtils.OD_NAME_APPLICATION_ID, mApplicationId));
+        }
+        return appInfoEle;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
-    public List<Element> toHrDomElements(Document doc) {
+    public Element toHrDomElement(Document doc) {
         Element appInfoEle = doc.createElement(XmlUtils.HR_TAG_APP_INFO);
-        if (this.mApsCompliant != null) {
+
+        if (this.mTitle != null) {
+            appInfoEle.setAttribute(XmlUtils.HR_ATTR_TITLE, this.mTitle);
+        }
+        if (this.mDescription != null) {
+            appInfoEle.setAttribute(XmlUtils.HR_ATTR_DESCRIPTION, this.mDescription);
+        }
+        if (this.mContainsAds != null) {
             appInfoEle.setAttribute(
-                    XmlUtils.HR_ATTR_APS_COMPLIANT, String.valueOf(this.mApsCompliant));
+                    XmlUtils.HR_ATTR_CONTAINS_ADS, String.valueOf(this.mContainsAds));
+        }
+        if (this.mObeyAps != null) {
+            appInfoEle.setAttribute(XmlUtils.HR_ATTR_OBEY_APS, String.valueOf(this.mObeyAps));
+        }
+        if (this.mAdsFingerprinting != null) {
+            appInfoEle.setAttribute(
+                    XmlUtils.HR_ATTR_ADS_FINGERPRINTING, String.valueOf(this.mAdsFingerprinting));
+        }
+        if (this.mSecurityFingerprinting != null) {
+            appInfoEle.setAttribute(
+                    XmlUtils.HR_ATTR_SECURITY_FINGERPRINTING,
+                    String.valueOf(this.mSecurityFingerprinting));
         }
         if (this.mPrivacyPolicy != null) {
             appInfoEle.setAttribute(XmlUtils.HR_ATTR_PRIVACY_POLICY, this.mPrivacyPolicy);
         }
+        if (this.mSecurityEndpoints != null) {
+            appInfoEle.setAttribute(
+                    XmlUtils.HR_ATTR_SECURITY_ENDPOINTS, String.join("|", this.mSecurityEndpoints));
+        }
+        if (this.mCategory != null) {
+            appInfoEle.setAttribute(XmlUtils.HR_ATTR_CATEGORY, this.mCategory);
+        }
+        if (this.mEmail != null) {
+            appInfoEle.setAttribute(XmlUtils.HR_ATTR_EMAIL, this.mEmail);
+        }
+        if (this.mWebsite != null) {
+            appInfoEle.setAttribute(XmlUtils.HR_ATTR_WEBSITE, this.mWebsite);
+        }
 
+        if (this.mApsCompliant != null) {
+            appInfoEle.setAttribute(
+                    XmlUtils.HR_ATTR_APS_COMPLIANT, String.valueOf(this.mApsCompliant));
+        }
         if (this.mFirstPartyEndpoints != null) {
             appInfoEle.appendChild(
                     XmlUtils.createHrArray(
                             doc, XmlUtils.HR_TAG_FIRST_PARTY_ENDPOINTS, mFirstPartyEndpoints));
         }
-
         if (this.mServiceProviderEndpoints != null) {
             appInfoEle.appendChild(
                     XmlUtils.createHrArray(
@@ -99,7 +231,13 @@
                             XmlUtils.HR_TAG_SERVICE_PROVIDER_ENDPOINTS,
                             mServiceProviderEndpoints));
         }
+        if (this.mDeveloperId != null) {
+            appInfoEle.setAttribute(XmlUtils.HR_ATTR_DEVELOPER_ID, this.mDeveloperId);
+        }
+        if (this.mApplicationId != null) {
+            appInfoEle.setAttribute(XmlUtils.HR_ATTR_APPLICATION_ID, this.mApplicationId);
+        }
 
-        return XmlUtils.listOf(appInfoEle);
+        return appInfoEle;
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AppInfoFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AppInfoFactory.java
index 6ad2027..277a508 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AppInfoFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AppInfoFactory.java
@@ -16,60 +16,233 @@
 
 package com.android.asllib.marshallable;
 
-import com.android.asllib.util.AslgenUtil;
 import com.android.asllib.util.MalformedXmlException;
 import com.android.asllib.util.XmlUtils;
 
 import org.w3c.dom.Element;
 
 import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
 public class AppInfoFactory implements AslMarshallableFactory<AppInfo> {
+    // We don't need to support V1 for HR.
+    private final Map<Long, Set<String>> mRecognizedHrAttrs =
+            Map.ofEntries(
+                    Map.entry(
+                            2L,
+                            Set.of(
+                                    XmlUtils.HR_ATTR_APS_COMPLIANT,
+                                    XmlUtils.HR_ATTR_PRIVACY_POLICY,
+                                    XmlUtils.HR_ATTR_DEVELOPER_ID,
+                                    XmlUtils.HR_ATTR_APPLICATION_ID)));
+    private final Map<Long, Set<String>> mRequiredHrAttrs =
+            Map.ofEntries(
+                    Map.entry(
+                            2L,
+                            Set.of(
+                                    XmlUtils.HR_ATTR_APS_COMPLIANT,
+                                    XmlUtils.HR_ATTR_PRIVACY_POLICY,
+                                    XmlUtils.HR_ATTR_DEVELOPER_ID,
+                                    XmlUtils.HR_ATTR_APPLICATION_ID)));
+    private final Map<Long, Set<String>> mRecognizedHrEles =
+            Map.ofEntries(
+                    Map.entry(
+                            2L,
+                            Set.of(
+                                    XmlUtils.HR_TAG_FIRST_PARTY_ENDPOINTS,
+                                    XmlUtils.HR_TAG_SERVICE_PROVIDER_ENDPOINTS)));
+    private final Map<Long, Set<String>> mRequiredHrEles =
+            Map.ofEntries(
+                    Map.entry(
+                            2L,
+                            Set.of(
+                                    XmlUtils.HR_TAG_FIRST_PARTY_ENDPOINTS,
+                                    XmlUtils.HR_TAG_SERVICE_PROVIDER_ENDPOINTS)));
+    private final Map<Long, Set<String>> mRecognizedOdEleNames =
+            Map.ofEntries(
+                    Map.entry(
+                            1L,
+                            Set.of(
+                                    XmlUtils.OD_NAME_TITLE,
+                                    XmlUtils.OD_NAME_DESCRIPTION,
+                                    XmlUtils.OD_NAME_CONTAINS_ADS,
+                                    XmlUtils.OD_NAME_OBEY_APS,
+                                    XmlUtils.OD_NAME_ADS_FINGERPRINTING,
+                                    XmlUtils.OD_NAME_SECURITY_FINGERPRINTING,
+                                    XmlUtils.OD_NAME_PRIVACY_POLICY,
+                                    XmlUtils.OD_NAME_SECURITY_ENDPOINTS,
+                                    XmlUtils.OD_NAME_FIRST_PARTY_ENDPOINTS,
+                                    XmlUtils.OD_NAME_SERVICE_PROVIDER_ENDPOINTS,
+                                    XmlUtils.OD_NAME_CATEGORY,
+                                    XmlUtils.OD_NAME_EMAIL,
+                                    XmlUtils.OD_NAME_WEBSITE)),
+                    Map.entry(
+                            2L,
+                            Set.of(
+                                    XmlUtils.OD_NAME_APS_COMPLIANT,
+                                    XmlUtils.OD_NAME_PRIVACY_POLICY,
+                                    XmlUtils.OD_NAME_FIRST_PARTY_ENDPOINTS,
+                                    XmlUtils.OD_NAME_SERVICE_PROVIDER_ENDPOINTS,
+                                    XmlUtils.OD_NAME_DEVELOPER_ID,
+                                    XmlUtils.OD_NAME_APPLICATION_ID)));
+    private final Map<Long, Set<String>> mRequiredOdEles =
+            Map.ofEntries(
+                    Map.entry(
+                            1L,
+                            Set.of(
+                                    XmlUtils.OD_NAME_TITLE,
+                                    XmlUtils.OD_NAME_DESCRIPTION,
+                                    XmlUtils.OD_NAME_CONTAINS_ADS,
+                                    XmlUtils.OD_NAME_OBEY_APS,
+                                    XmlUtils.OD_NAME_ADS_FINGERPRINTING,
+                                    XmlUtils.OD_NAME_SECURITY_FINGERPRINTING,
+                                    XmlUtils.OD_NAME_PRIVACY_POLICY,
+                                    XmlUtils.OD_NAME_SECURITY_ENDPOINTS,
+                                    XmlUtils.OD_NAME_FIRST_PARTY_ENDPOINTS,
+                                    XmlUtils.OD_NAME_SERVICE_PROVIDER_ENDPOINTS,
+                                    XmlUtils.OD_NAME_CATEGORY)),
+                    Map.entry(
+                            2L,
+                            Set.of(
+                                    XmlUtils.OD_NAME_APS_COMPLIANT,
+                                    XmlUtils.OD_NAME_PRIVACY_POLICY,
+                                    XmlUtils.OD_NAME_FIRST_PARTY_ENDPOINTS,
+                                    XmlUtils.OD_NAME_SERVICE_PROVIDER_ENDPOINTS,
+                                    XmlUtils.OD_NAME_DEVELOPER_ID,
+                                    XmlUtils.OD_NAME_APPLICATION_ID)));
 
     /** Creates a {@link AppInfo} from the human-readable DOM element. */
-    @Override
-    public AppInfo createFromHrElements(List<Element> elements) throws MalformedXmlException {
-        Element appInfoEle = XmlUtils.getSingleElement(elements);
-        if (appInfoEle == null) {
-            AslgenUtil.logI("No AppInfo found in hr format.");
-            return null;
-        }
+    public AppInfo createFromHrElement(Element appInfoEle, long version)
+            throws MalformedXmlException {
+        XmlUtils.throwIfExtraneousAttributes(
+                appInfoEle, XmlUtils.getMostRecentVersion(mRecognizedHrAttrs, version));
+        XmlUtils.throwIfExtraneousChildrenHr(
+                appInfoEle, XmlUtils.getMostRecentVersion(mRecognizedHrEles, version));
+
+        var requiredHrAttrs = XmlUtils.getMostRecentVersion(mRequiredHrAttrs, version);
+        var requiredHrEles = XmlUtils.getMostRecentVersion(mRequiredHrEles, version);
+
+        String title = XmlUtils.getStringAttr(appInfoEle, XmlUtils.HR_ATTR_TITLE, requiredHrAttrs);
+        String description =
+                XmlUtils.getStringAttr(appInfoEle, XmlUtils.HR_ATTR_DESCRIPTION, requiredHrAttrs);
+        Boolean containsAds =
+                XmlUtils.getBoolAttr(appInfoEle, XmlUtils.HR_ATTR_CONTAINS_ADS, requiredHrAttrs);
+        Boolean obeyAps =
+                XmlUtils.getBoolAttr(appInfoEle, XmlUtils.HR_ATTR_OBEY_APS, requiredHrAttrs);
+        Boolean adsFingerprinting =
+                XmlUtils.getBoolAttr(
+                        appInfoEle, XmlUtils.HR_ATTR_ADS_FINGERPRINTING, requiredHrAttrs);
+        Boolean securityFingerprinting =
+                XmlUtils.getBoolAttr(
+                        appInfoEle, XmlUtils.HR_ATTR_SECURITY_FINGERPRINTING, requiredHrAttrs);
+        String privacyPolicy =
+                XmlUtils.getStringAttr(
+                        appInfoEle, XmlUtils.HR_ATTR_PRIVACY_POLICY, requiredHrAttrs);
+        List<String> securityEndpoints =
+                XmlUtils.getPipelineSplitAttr(
+                        appInfoEle, XmlUtils.HR_ATTR_SECURITY_ENDPOINTS, requiredHrAttrs);
+        String category =
+                XmlUtils.getStringAttr(appInfoEle, XmlUtils.HR_ATTR_CATEGORY, requiredHrAttrs);
+        String email = XmlUtils.getStringAttr(appInfoEle, XmlUtils.HR_ATTR_EMAIL, requiredHrAttrs);
+        String website =
+                XmlUtils.getStringAttr(appInfoEle, XmlUtils.HR_ATTR_WEBSITE, requiredHrAttrs);
+        String developerId =
+                XmlUtils.getStringAttr(appInfoEle, XmlUtils.HR_ATTR_DEVELOPER_ID, requiredHrAttrs);
+        String applicationId =
+                XmlUtils.getStringAttr(
+                        appInfoEle, XmlUtils.HR_ATTR_APPLICATION_ID, requiredHrAttrs);
 
         Boolean apsCompliant =
-                XmlUtils.getBoolAttr(appInfoEle, XmlUtils.HR_ATTR_APS_COMPLIANT, true);
-        String privacyPolicy =
-                XmlUtils.getStringAttr(appInfoEle, XmlUtils.HR_ATTR_PRIVACY_POLICY, true);
+                XmlUtils.getBoolAttr(appInfoEle, XmlUtils.HR_ATTR_APS_COMPLIANT, requiredHrAttrs);
         List<String> firstPartyEndpoints =
                 XmlUtils.getHrItemsAsStrings(
-                        appInfoEle, XmlUtils.HR_TAG_FIRST_PARTY_ENDPOINTS, true);
+                        appInfoEle, XmlUtils.HR_TAG_FIRST_PARTY_ENDPOINTS, requiredHrEles);
         List<String> serviceProviderEndpoints =
                 XmlUtils.getHrItemsAsStrings(
-                        appInfoEle, XmlUtils.HR_TAG_SERVICE_PROVIDER_ENDPOINTS, true);
+                        appInfoEle, XmlUtils.HR_TAG_SERVICE_PROVIDER_ENDPOINTS, requiredHrEles);
 
         return new AppInfo(
-                apsCompliant, privacyPolicy, firstPartyEndpoints, serviceProviderEndpoints);
+                title,
+                description,
+                containsAds,
+                obeyAps,
+                adsFingerprinting,
+                securityFingerprinting,
+                privacyPolicy,
+                securityEndpoints,
+                firstPartyEndpoints,
+                serviceProviderEndpoints,
+                category,
+                email,
+                website,
+                apsCompliant,
+                developerId,
+                applicationId);
     }
 
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    @Override
-    public AppInfo createFromOdElements(List<Element> elements) throws MalformedXmlException {
-        Element appInfoEle = XmlUtils.getSingleElement(elements);
-        if (appInfoEle == null) {
-            AslgenUtil.logI("No AppInfo found in od format.");
-            return null;
-        }
+    public AppInfo createFromOdElement(Element appInfoEle, long version)
+            throws MalformedXmlException {
+        XmlUtils.throwIfExtraneousChildrenOd(
+                appInfoEle, XmlUtils.getMostRecentVersion(mRecognizedOdEleNames, version));
+        var requiredOdEles = XmlUtils.getMostRecentVersion(mRequiredOdEles, version);
+
+        String title = XmlUtils.getOdStringEle(appInfoEle, XmlUtils.OD_NAME_TITLE, requiredOdEles);
+        String description =
+                XmlUtils.getOdStringEle(appInfoEle, XmlUtils.OD_NAME_DESCRIPTION, requiredOdEles);
+        Boolean containsAds =
+                XmlUtils.getOdBoolEle(appInfoEle, XmlUtils.OD_NAME_CONTAINS_ADS, requiredOdEles);
+        Boolean obeyAps =
+                XmlUtils.getOdBoolEle(appInfoEle, XmlUtils.OD_NAME_OBEY_APS, requiredOdEles);
+        Boolean adsFingerprinting =
+                XmlUtils.getOdBoolEle(
+                        appInfoEle, XmlUtils.OD_NAME_ADS_FINGERPRINTING, requiredOdEles);
+        Boolean securityFingerprinting =
+                XmlUtils.getOdBoolEle(
+                        appInfoEle, XmlUtils.OD_NAME_SECURITY_FINGERPRINTING, requiredOdEles);
+        String privacyPolicy =
+                XmlUtils.getOdStringEle(
+                        appInfoEle, XmlUtils.OD_NAME_PRIVACY_POLICY, requiredOdEles);
+        List<String> securityEndpoints =
+                XmlUtils.getOdStringArray(
+                        appInfoEle, XmlUtils.OD_NAME_SECURITY_ENDPOINTS, requiredOdEles);
+        String category =
+                XmlUtils.getOdStringEle(appInfoEle, XmlUtils.OD_NAME_CATEGORY, requiredOdEles);
+        String email = XmlUtils.getOdStringEle(appInfoEle, XmlUtils.OD_NAME_EMAIL, requiredOdEles);
+        String website =
+                XmlUtils.getOdStringEle(appInfoEle, XmlUtils.OD_NAME_WEBSITE, requiredOdEles);
+        String developerId =
+                XmlUtils.getOdStringEle(appInfoEle, XmlUtils.OD_NAME_DEVELOPER_ID, requiredOdEles);
+        String applicationId =
+                XmlUtils.getOdStringEle(
+                        appInfoEle, XmlUtils.OD_NAME_APPLICATION_ID, requiredOdEles);
 
         Boolean apsCompliant =
-                XmlUtils.getOdBoolEle(appInfoEle, XmlUtils.OD_NAME_APS_COMPLIANT, true);
-        String privacyPolicy =
-                XmlUtils.getOdStringEle(appInfoEle, XmlUtils.OD_NAME_PRIVACY_POLICY, true);
+                XmlUtils.getOdBoolEle(appInfoEle, XmlUtils.OD_NAME_APS_COMPLIANT, requiredOdEles);
         List<String> firstPartyEndpoints =
-                XmlUtils.getOdStringArray(appInfoEle, XmlUtils.OD_NAME_FIRST_PARTY_ENDPOINTS, true);
+                XmlUtils.getOdStringArray(
+                        appInfoEle, XmlUtils.OD_NAME_FIRST_PARTY_ENDPOINTS, requiredOdEles);
         List<String> serviceProviderEndpoints =
                 XmlUtils.getOdStringArray(
-                        appInfoEle, XmlUtils.OD_NAME_SERVICE_PROVIDER_ENDPOINTS, true);
+                        appInfoEle, XmlUtils.OD_NAME_SERVICE_PROVIDER_ENDPOINTS, requiredOdEles);
 
         return new AppInfo(
-                apsCompliant, privacyPolicy, firstPartyEndpoints, serviceProviderEndpoints);
+                title,
+                description,
+                containsAds,
+                obeyAps,
+                adsFingerprinting,
+                securityFingerprinting,
+                privacyPolicy,
+                securityEndpoints,
+                firstPartyEndpoints,
+                serviceProviderEndpoints,
+                category,
+                email,
+                website,
+                apsCompliant,
+                developerId,
+                applicationId);
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AslMarshallable.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AslMarshallable.java
index 0a70e7d0..b6c789d 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AslMarshallable.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AslMarshallable.java
@@ -16,16 +16,11 @@
 
 package com.android.asllib.marshallable;
 
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-
-import java.util.List;
-
 public interface AslMarshallable {
 
     /** Creates the on-device DOM elements from the AslMarshallable Java Object. */
-    List<Element> toOdDomElements(Document doc);
+    // List<Element> toOdDomElements(Document doc);
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    List<Element> toHrDomElements(Document doc);
+    // List<Element> toHrDomElements(Document doc);
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AslMarshallableFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AslMarshallableFactory.java
index 3958290..67f1069 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AslMarshallableFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/AslMarshallableFactory.java
@@ -16,17 +16,11 @@
 
 package com.android.asllib.marshallable;
 
-import com.android.asllib.util.MalformedXmlException;
-
-import org.w3c.dom.Element;
-
-import java.util.List;
-
 public interface AslMarshallableFactory<T extends AslMarshallable> {
 
     /** Creates an {@link AslMarshallableFactory} from human-readable DOM elements */
-    T createFromHrElements(List<Element> elements) throws MalformedXmlException;
+    // T createFromHrElements(List<Element> elements) throws MalformedXmlException;
 
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    T createFromOdElements(List<Element> elements) throws MalformedXmlException;
+    // T createFromOdElements(List<Element> elements) throws MalformedXmlException;
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataCategory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataCategory.java
index c16d18b..501f170 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataCategory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataCategory.java
@@ -57,18 +57,16 @@
     }
 
     /** Creates on-device DOM element(s) from the {@link DataCategory}. */
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    public Element toOdDomElement(Document doc) {
         Element dataCategoryEle = XmlUtils.createPbundleEleWithName(doc, this.getCategoryName());
         for (DataType dataType : mDataTypes.values()) {
-            XmlUtils.appendChildren(dataCategoryEle, dataType.toOdDomElements(doc));
+            dataCategoryEle.appendChild(dataType.toOdDomElement(doc));
         }
-        return XmlUtils.listOf(dataCategoryEle);
+        return dataCategoryEle;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
-    public List<Element> toHrDomElements(Document doc) {
+    public List<Element> toHrDomElement(Document doc) {
         throw new IllegalStateException(
                 "Turning DataCategory or DataType into human-readable DOM elements requires"
                         + " visibility into parent elements. The logic resides in DataLabels.");
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataCategoryFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataCategoryFactory.java
index 7244162..fb84e50 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataCategoryFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataCategoryFactory.java
@@ -23,13 +23,11 @@
 import org.w3c.dom.Element;
 
 import java.util.LinkedHashMap;
-import java.util.List;
 import java.util.Map;
 
 public class DataCategoryFactory {
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    public DataCategory createFromOdElements(List<Element> elements) throws MalformedXmlException {
-        Element dataCategoryEle = XmlUtils.getSingleElement(elements);
+    public DataCategory createFromOdElement(Element dataCategoryEle) throws MalformedXmlException {
         Map<String, DataType> dataTypeMap = new LinkedHashMap<String, DataType>();
         String categoryName = dataCategoryEle.getAttribute(XmlUtils.OD_ATTR_NAME);
         var odDataTypes = XmlUtils.asElementList(dataCategoryEle.getChildNodes());
@@ -45,9 +43,7 @@
                                 "Unrecognized data type name %s for category %s",
                                 dataTypeName, categoryName));
             }
-            dataTypeMap.put(
-                    dataTypeName,
-                    new DataTypeFactory().createFromOdElements(XmlUtils.listOf(odDataTypeEle)));
+            dataTypeMap.put(dataTypeName, new DataTypeFactory().createFromOdElement(odDataTypeEle));
         }
 
         return new DataCategory(categoryName, dataTypeMap);
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataLabels.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataLabels.java
index 3c93c88..2cf7c82f 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataLabels.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataLabels.java
@@ -22,7 +22,6 @@
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
-import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
@@ -57,20 +56,18 @@
     }
 
     /** Gets the on-device DOM element for the {@link DataLabels}. */
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    public Element toOdDomElement(Document doc) {
         Element dataLabelsEle =
                 XmlUtils.createPbundleEleWithName(doc, XmlUtils.OD_NAME_DATA_LABELS);
 
         maybeAppendDataUsages(doc, dataLabelsEle, mDataCollected, XmlUtils.OD_NAME_DATA_COLLECTED);
         maybeAppendDataUsages(doc, dataLabelsEle, mDataShared, XmlUtils.OD_NAME_DATA_SHARED);
 
-        return XmlUtils.listOf(dataLabelsEle);
+        return dataLabelsEle;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
-    public List<Element> toHrDomElements(Document doc) {
+    public Element toHrDomElement(Document doc) {
         Element dataLabelsEle = doc.createElement(XmlUtils.HR_TAG_DATA_LABELS);
         maybeAppendHrDataUsages(
                 doc, dataLabelsEle, mDataCollected, XmlUtils.HR_TAG_DATA_COLLECTED, false);
@@ -78,7 +75,7 @@
                 doc, dataLabelsEle, mDataCollected, XmlUtils.HR_TAG_DATA_COLLECTED_EPHEMERAL, true);
         maybeAppendHrDataUsages(
                 doc, dataLabelsEle, mDataShared, XmlUtils.HR_TAG_DATA_SHARED, false);
-        return XmlUtils.listOf(dataLabelsEle);
+        return dataLabelsEle;
     }
 
     private void maybeAppendDataUsages(
@@ -96,7 +93,7 @@
             DataCategory dataCategory = dataCategoriesMap.get(dataCategoryName);
             for (String dataTypeName : dataCategory.getDataTypes().keySet()) {
                 DataType dataType = dataCategory.getDataTypes().get(dataTypeName);
-                XmlUtils.appendChildren(dataCategoryEle, dataType.toOdDomElements(doc));
+                dataCategoryEle.appendChild(dataType.toOdDomElement(doc));
             }
             dataUsageEle.appendChild(dataCategoryEle);
         }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataLabelsFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataLabelsFactory.java
index c4d8876..b1cf3ea0 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataLabelsFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataLabelsFactory.java
@@ -31,9 +31,7 @@
 public class DataLabelsFactory implements AslMarshallableFactory<DataLabels> {
 
     /** Creates a {@link DataLabels} from the human-readable DOM element. */
-    @Override
-    public DataLabels createFromHrElements(List<Element> elements) throws MalformedXmlException {
-        Element ele = XmlUtils.getSingleElement(elements);
+    public DataLabels createFromHrElement(Element ele) throws MalformedXmlException {
         if (ele == null) {
             AslgenUtil.logI("Found no DataLabels in hr format.");
             return null;
@@ -83,9 +81,7 @@
     }
 
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    @Override
-    public DataLabels createFromOdElements(List<Element> elements) throws MalformedXmlException {
-        Element dataLabelsEle = XmlUtils.getSingleElement(elements);
+    public DataLabels createFromOdElement(Element dataLabelsEle) throws MalformedXmlException {
         if (dataLabelsEle == null) {
             AslgenUtil.logI("Found no DataLabels in od format.");
             return null;
@@ -111,7 +107,7 @@
         for (Element dataCategoryEle : dataCategoryEles) {
             String dataCategoryName = dataCategoryEle.getAttribute(XmlUtils.OD_ATTR_NAME);
             DataCategory dataCategory =
-                    new DataCategoryFactory().createFromOdElements(List.of(dataCategoryEle));
+                    new DataCategoryFactory().createFromOdElement(dataCategoryEle);
             dataCategoryMap.put(dataCategoryName, dataCategory);
         }
         return dataCategoryMap;
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataType.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataType.java
index 284a4b8..83bb611 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataType.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataType.java
@@ -172,8 +172,8 @@
         return mEphemeral;
     }
 
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    /** Gets the on-device dom element */
+    public Element toOdDomElement(Document doc) {
         Element dataTypeEle = XmlUtils.createPbundleEleWithName(doc, this.getDataTypeName());
         if (!this.getPurposes().isEmpty()) {
             dataTypeEle.appendChild(
@@ -197,11 +197,10 @@
                 this.getIsSharingOptional(),
                 XmlUtils.OD_NAME_IS_SHARING_OPTIONAL);
         maybeAddBoolToOdElement(doc, dataTypeEle, this.getEphemeral(), XmlUtils.OD_NAME_EPHEMERAL);
-        return XmlUtils.listOf(dataTypeEle);
+        return dataTypeEle;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
     public List<Element> toHrDomElements(Document doc) {
         throw new IllegalStateException(
                 "Turning DataCategory or DataType into human-readable DOM elements requires"
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataTypeFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataTypeFactory.java
index a5559d8..96a58fa 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataTypeFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DataTypeFactory.java
@@ -64,8 +64,7 @@
     }
 
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    public DataType createFromOdElements(List<Element> elements) throws MalformedXmlException {
-        Element odDataTypeEle = XmlUtils.getSingleElement(elements);
+    public DataType createFromOdElement(Element odDataTypeEle) throws MalformedXmlException {
         String dataTypeName = odDataTypeEle.getAttribute(XmlUtils.OD_ATTR_NAME);
         List<Integer> purposeInts =
                 XmlUtils.getOdIntArray(odDataTypeEle, XmlUtils.OD_NAME_PURPOSES, true);
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DeveloperInfo.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DeveloperInfo.java
new file mode 100644
index 0000000..96a64dc
--- /dev/null
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DeveloperInfo.java
@@ -0,0 +1,167 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.asllib.marshallable;
+
+import com.android.asllib.util.XmlUtils;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+/** DeveloperInfo representation */
+public class DeveloperInfo implements AslMarshallable {
+    public enum DeveloperRelationship {
+        OEM(0),
+        ODM(1),
+        SOC(2),
+        OTA(3),
+        CARRIER(4),
+        AOSP(5),
+        OTHER(6);
+
+        private final int mValue;
+
+        DeveloperRelationship(int value) {
+            this.mValue = value;
+        }
+
+        /** Get the int value associated with the DeveloperRelationship. */
+        public int getValue() {
+            return mValue;
+        }
+
+        /** Get the DeveloperRelationship associated with the int value. */
+        public static DeveloperInfo.DeveloperRelationship forValue(int value) {
+            for (DeveloperInfo.DeveloperRelationship e : values()) {
+                if (e.getValue() == value) {
+                    return e;
+                }
+            }
+            throw new IllegalArgumentException("No DeveloperRelationship enum for value: " + value);
+        }
+
+        /** Get the DeveloperRelationship associated with the human-readable String. */
+        public static DeveloperInfo.DeveloperRelationship forString(String s) {
+            for (DeveloperInfo.DeveloperRelationship e : values()) {
+                if (e.toString().equals(s)) {
+                    return e;
+                }
+            }
+            throw new IllegalArgumentException("No DeveloperRelationship enum for str: " + s);
+        }
+
+        /** Human-readable String representation of DeveloperRelationship. */
+        public String toString() {
+            return this.name().toLowerCase();
+        }
+    }
+
+    private final String mName;
+    private final String mEmail;
+    private final String mAddress;
+    private final String mCountryRegion;
+    private final DeveloperRelationship mDeveloperRelationship;
+    private final String mWebsite;
+    private final String mAppDeveloperRegistryId;
+
+    public DeveloperInfo(
+            String name,
+            String email,
+            String address,
+            String countryRegion,
+            DeveloperRelationship developerRelationship,
+            String website,
+            String appDeveloperRegistryId) {
+        this.mName = name;
+        this.mEmail = email;
+        this.mAddress = address;
+        this.mCountryRegion = countryRegion;
+        this.mDeveloperRelationship = developerRelationship;
+        this.mWebsite = website;
+        this.mAppDeveloperRegistryId = appDeveloperRegistryId;
+    }
+
+    /** Creates an on-device DOM element from the {@link SafetyLabels}. */
+    public Element toOdDomElement(Document doc) {
+        Element developerInfoEle =
+                XmlUtils.createPbundleEleWithName(doc, XmlUtils.OD_NAME_DEVELOPER_INFO);
+        if (mName != null) {
+            developerInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_NAME, mName));
+        }
+        if (mEmail != null) {
+            developerInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_EMAIL, mEmail));
+        }
+        if (mAddress != null) {
+            developerInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_ADDRESS, mAddress));
+        }
+        if (mCountryRegion != null) {
+            developerInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(
+                            doc, XmlUtils.OD_NAME_COUNTRY_REGION, mCountryRegion));
+        }
+        if (mDeveloperRelationship != null) {
+            developerInfoEle.appendChild(
+                    XmlUtils.createOdLongEle(
+                            doc,
+                            XmlUtils.OD_NAME_DEVELOPER_RELATIONSHIP,
+                            mDeveloperRelationship.getValue()));
+        }
+        if (mWebsite != null) {
+            developerInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_WEBSITE, mWebsite));
+        }
+        if (mAppDeveloperRegistryId != null) {
+            developerInfoEle.appendChild(
+                    XmlUtils.createOdStringEle(
+                            doc,
+                            XmlUtils.OD_NAME_APP_DEVELOPER_REGISTRY_ID,
+                            mAppDeveloperRegistryId));
+        }
+        return developerInfoEle;
+    }
+
+    /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
+    public Element toHrDomElement(Document doc) {
+        Element developerInfoEle = doc.createElement(XmlUtils.HR_TAG_DEVELOPER_INFO);
+        if (mName != null) {
+            developerInfoEle.setAttribute(XmlUtils.HR_ATTR_NAME, mName);
+        }
+        if (mEmail != null) {
+            developerInfoEle.setAttribute(XmlUtils.HR_ATTR_EMAIL, mEmail);
+        }
+        if (mAddress != null) {
+            developerInfoEle.setAttribute(XmlUtils.HR_ATTR_ADDRESS, mAddress);
+        }
+        if (mCountryRegion != null) {
+            developerInfoEle.setAttribute(XmlUtils.HR_ATTR_COUNTRY_REGION, mCountryRegion);
+        }
+        if (mDeveloperRelationship != null) {
+            developerInfoEle.setAttribute(
+                    XmlUtils.HR_ATTR_DEVELOPER_RELATIONSHIP, mDeveloperRelationship.toString());
+        }
+        if (mWebsite != null) {
+            developerInfoEle.setAttribute(XmlUtils.HR_ATTR_WEBSITE, mWebsite);
+        }
+        if (mAppDeveloperRegistryId != null) {
+            developerInfoEle.setAttribute(
+                    XmlUtils.HR_ATTR_APP_DEVELOPER_REGISTRY_ID, mAppDeveloperRegistryId);
+        }
+        return developerInfoEle;
+    }
+}
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DeveloperInfoFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DeveloperInfoFactory.java
new file mode 100644
index 0000000..e82a53a
--- /dev/null
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/DeveloperInfoFactory.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.asllib.marshallable;
+
+import com.android.asllib.util.AslgenUtil;
+import com.android.asllib.util.MalformedXmlException;
+import com.android.asllib.util.XmlUtils;
+
+import org.w3c.dom.Element;
+
+public class DeveloperInfoFactory implements AslMarshallableFactory<DeveloperInfo> {
+    /** Creates a {@link DeveloperInfo} from the human-readable DOM element. */
+    public DeveloperInfo createFromHrElement(Element developerInfoEle)
+            throws MalformedXmlException {
+        if (developerInfoEle == null) {
+            AslgenUtil.logI("No DeveloperInfo found in hr format.");
+            return null;
+        }
+        String name = XmlUtils.getStringAttr(developerInfoEle, XmlUtils.HR_ATTR_NAME, true);
+        String email = XmlUtils.getStringAttr(developerInfoEle, XmlUtils.HR_ATTR_EMAIL, true);
+        String address = XmlUtils.getStringAttr(developerInfoEle, XmlUtils.HR_ATTR_ADDRESS, true);
+        String countryRegion =
+                XmlUtils.getStringAttr(developerInfoEle, XmlUtils.HR_ATTR_COUNTRY_REGION, true);
+        DeveloperInfo.DeveloperRelationship developerRelationship =
+                DeveloperInfo.DeveloperRelationship.forString(
+                        XmlUtils.getStringAttr(
+                                developerInfoEle, XmlUtils.HR_ATTR_DEVELOPER_RELATIONSHIP, true));
+        String website = XmlUtils.getStringAttr(developerInfoEle, XmlUtils.HR_ATTR_WEBSITE, false);
+        String appDeveloperRegistryId =
+                XmlUtils.getStringAttr(
+                        developerInfoEle, XmlUtils.HR_ATTR_APP_DEVELOPER_REGISTRY_ID, false);
+        return new DeveloperInfo(
+                name,
+                email,
+                address,
+                countryRegion,
+                developerRelationship,
+                website,
+                appDeveloperRegistryId);
+    }
+
+    /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
+    public DeveloperInfo createFromOdElement(Element developerInfoEle)
+            throws MalformedXmlException {
+        if (developerInfoEle == null) {
+            AslgenUtil.logI("No DeveloperInfo found in od format.");
+            return null;
+        }
+        String name = XmlUtils.getOdStringEle(developerInfoEle, XmlUtils.OD_NAME_NAME, true);
+        String email = XmlUtils.getOdStringEle(developerInfoEle, XmlUtils.OD_NAME_EMAIL, true);
+        String address = XmlUtils.getOdStringEle(developerInfoEle, XmlUtils.OD_NAME_ADDRESS, true);
+        String countryRegion =
+                XmlUtils.getOdStringEle(developerInfoEle, XmlUtils.OD_NAME_COUNTRY_REGION, true);
+        DeveloperInfo.DeveloperRelationship developerRelationship =
+                DeveloperInfo.DeveloperRelationship.forValue(
+                        (int)
+                                (long)
+                                        XmlUtils.getOdLongEle(
+                                                developerInfoEle,
+                                                XmlUtils.OD_NAME_DEVELOPER_RELATIONSHIP,
+                                                true));
+        String website = XmlUtils.getOdStringEle(developerInfoEle, XmlUtils.OD_NAME_WEBSITE, false);
+        String appDeveloperRegistryId =
+                XmlUtils.getOdStringEle(
+                        developerInfoEle, XmlUtils.OD_NAME_APP_DEVELOPER_REGISTRY_ID, false);
+        return new DeveloperInfo(
+                name,
+                email,
+                address,
+                countryRegion,
+                developerRelationship,
+                website,
+                appDeveloperRegistryId);
+    }
+}
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SafetyLabels.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SafetyLabels.java
index 2a4e130..1a83c02 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SafetyLabels.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SafetyLabels.java
@@ -21,40 +21,50 @@
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
-import java.util.List;
-
 /** Safety Label representation containing zero or more {@link DataCategory} for data shared */
 public class SafetyLabels implements AslMarshallable {
     private final DataLabels mDataLabels;
+    private final SecurityLabels mSecurityLabels;
+    private final ThirdPartyVerification mThirdPartyVerification;
 
-    public SafetyLabels(DataLabels dataLabels) {
+    public SafetyLabels(
+            DataLabels dataLabels,
+            SecurityLabels securityLabels,
+            ThirdPartyVerification thirdPartyVerification) {
         this.mDataLabels = dataLabels;
-    }
-
-    /** Returns the data label for the safety label */
-    public DataLabels getDataLabel() {
-        return mDataLabels;
+        this.mSecurityLabels = securityLabels;
+        this.mThirdPartyVerification = thirdPartyVerification;
     }
 
     /** Creates an on-device DOM element from the {@link SafetyLabels}. */
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    public Element toOdDomElement(Document doc) {
         Element safetyLabelsEle =
                 XmlUtils.createPbundleEleWithName(doc, XmlUtils.OD_NAME_SAFETY_LABELS);
         if (mDataLabels != null) {
-            XmlUtils.appendChildren(safetyLabelsEle, mDataLabels.toOdDomElements(doc));
+            safetyLabelsEle.appendChild(mDataLabels.toOdDomElement(doc));
         }
-        return XmlUtils.listOf(safetyLabelsEle);
+        if (mSecurityLabels != null) {
+            safetyLabelsEle.appendChild(mSecurityLabels.toOdDomElement(doc));
+        }
+        if (mThirdPartyVerification != null) {
+            safetyLabelsEle.appendChild(mThirdPartyVerification.toOdDomElement(doc));
+        }
+        return safetyLabelsEle;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
-    public List<Element> toHrDomElements(Document doc) {
+    public Element toHrDomElement(Document doc) {
         Element safetyLabelsEle = doc.createElement(XmlUtils.HR_TAG_SAFETY_LABELS);
 
         if (mDataLabels != null) {
-            XmlUtils.appendChildren(safetyLabelsEle, mDataLabels.toHrDomElements(doc));
+            safetyLabelsEle.appendChild(mDataLabels.toHrDomElement(doc));
         }
-        return XmlUtils.listOf(safetyLabelsEle);
+        if (mSecurityLabels != null) {
+            safetyLabelsEle.appendChild(mSecurityLabels.toHrDomElement(doc));
+        }
+        if (mThirdPartyVerification != null) {
+            safetyLabelsEle.appendChild(mThirdPartyVerification.toHrDomElement(doc));
+        }
+        return safetyLabelsEle;
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SafetyLabelsFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SafetyLabelsFactory.java
index 2738337..35804d9 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SafetyLabelsFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SafetyLabelsFactory.java
@@ -16,54 +16,109 @@
 
 package com.android.asllib.marshallable;
 
-import com.android.asllib.util.AslgenUtil;
 import com.android.asllib.util.MalformedXmlException;
 import com.android.asllib.util.XmlUtils;
 
 import org.w3c.dom.Element;
 
-import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
 public class SafetyLabelsFactory implements AslMarshallableFactory<SafetyLabels> {
+    private final Map<Long, Set<String>> mRecognizedHrAttrs =
+            Map.ofEntries(Map.entry(1L, Set.of()));
+    private final Map<Long, Set<String>> mRequiredHrAttrs = Map.ofEntries(Map.entry(1L, Set.of()));
+    private final Map<Long, Set<String>> mRecognizedHrEles =
+            Map.ofEntries(
+                    Map.entry(
+                            1L,
+                            Set.of(
+                                    XmlUtils.HR_TAG_DATA_LABELS,
+                                    XmlUtils.HR_TAG_SECURITY_LABELS,
+                                    XmlUtils.HR_TAG_THIRD_PARTY_VERIFICATION)),
+                    Map.entry(2L, Set.of(XmlUtils.HR_TAG_DATA_LABELS)));
+    private final Map<Long, Set<String>> mRequiredHrEles = Map.ofEntries(Map.entry(1L, Set.of()));
+    private final Map<Long, Set<String>> mRecognizedOdEleNames =
+            Map.ofEntries(
+                    Map.entry(
+                            1L,
+                            Set.of(
+                                    XmlUtils.OD_NAME_DATA_LABELS,
+                                    XmlUtils.OD_NAME_SECURITY_LABELS,
+                                    XmlUtils.OD_NAME_THIRD_PARTY_VERIFICATION)),
+                    Map.entry(2L, Set.of(XmlUtils.OD_NAME_DATA_LABELS)));
+    private final Map<Long, Set<String>> mRequiredOdEles = Map.ofEntries(Map.entry(1L, Set.of()));
 
     /** Creates a {@link SafetyLabels} from the human-readable DOM element. */
-    @Override
-    public SafetyLabels createFromHrElements(List<Element> elements) throws MalformedXmlException {
-        Element safetyLabelsEle = XmlUtils.getSingleElement(elements);
+    public SafetyLabels createFromHrElement(Element safetyLabelsEle, long version)
+            throws MalformedXmlException {
         if (safetyLabelsEle == null) {
-            AslgenUtil.logI("No SafetyLabels found in hr format.");
             return null;
         }
 
+        XmlUtils.throwIfExtraneousAttributes(
+                safetyLabelsEle, XmlUtils.getMostRecentVersion(mRecognizedHrAttrs, version));
+        XmlUtils.throwIfExtraneousChildrenHr(
+                safetyLabelsEle, XmlUtils.getMostRecentVersion(mRecognizedHrEles, version));
+
+        var requiredHrEles = XmlUtils.getMostRecentVersion(mRequiredHrEles, version);
+
         DataLabels dataLabels =
                 new DataLabelsFactory()
-                        .createFromHrElements(
-                                XmlUtils.listOf(
-                                        XmlUtils.getSingleChildElement(
-                                                safetyLabelsEle,
-                                                XmlUtils.HR_TAG_DATA_LABELS,
-                                                false)));
-        return new SafetyLabels(dataLabels);
+                        .createFromHrElement(
+                                XmlUtils.getSingleChildElement(
+                                        safetyLabelsEle,
+                                        XmlUtils.HR_TAG_DATA_LABELS,
+                                        requiredHrEles));
+        SecurityLabels securityLabels =
+                new SecurityLabelsFactory()
+                        .createFromHrElement(
+                                XmlUtils.getSingleChildElement(
+                                        safetyLabelsEle,
+                                        XmlUtils.HR_TAG_SECURITY_LABELS,
+                                        requiredHrEles));
+        ThirdPartyVerification thirdPartyVerification =
+                new ThirdPartyVerificationFactory()
+                        .createFromHrElement(
+                                XmlUtils.getSingleChildElement(
+                                        safetyLabelsEle,
+                                        XmlUtils.HR_TAG_THIRD_PARTY_VERIFICATION,
+                                        requiredHrEles));
+        return new SafetyLabels(dataLabels, securityLabels, thirdPartyVerification);
     }
 
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    @Override
-    public SafetyLabels createFromOdElements(List<Element> elements) throws MalformedXmlException {
-        Element safetyLabelsEle = XmlUtils.getSingleElement(elements);
+    public SafetyLabels createFromOdElement(Element safetyLabelsEle, long version)
+            throws MalformedXmlException {
         if (safetyLabelsEle == null) {
-            AslgenUtil.logI("No SafetyLabels found in od format.");
             return null;
         }
 
+        XmlUtils.throwIfExtraneousChildrenOd(
+                safetyLabelsEle, XmlUtils.getMostRecentVersion(mRecognizedOdEleNames, version));
+        var requiredOdEles = XmlUtils.getMostRecentVersion(mRequiredOdEles, version);
+
         DataLabels dataLabels =
                 new DataLabelsFactory()
-                        .createFromOdElements(
-                                XmlUtils.listOf(
-                                        XmlUtils.getOdPbundleWithName(
-                                                safetyLabelsEle,
-                                                XmlUtils.OD_NAME_DATA_LABELS,
-                                                false)));
-
-        return new SafetyLabels(dataLabels);
+                        .createFromOdElement(
+                                XmlUtils.getOdPbundleWithName(
+                                        safetyLabelsEle,
+                                        XmlUtils.OD_NAME_DATA_LABELS,
+                                        requiredOdEles));
+        SecurityLabels securityLabels =
+                new SecurityLabelsFactory()
+                        .createFromOdElement(
+                                XmlUtils.getOdPbundleWithName(
+                                        safetyLabelsEle,
+                                        XmlUtils.OD_NAME_SECURITY_LABELS,
+                                        requiredOdEles));
+        ThirdPartyVerification thirdPartyVerification =
+                new ThirdPartyVerificationFactory()
+                        .createFromOdElement(
+                                XmlUtils.getOdPbundleWithName(
+                                        safetyLabelsEle,
+                                        XmlUtils.OD_NAME_THIRD_PARTY_VERIFICATION,
+                                        requiredOdEles));
+        return new SafetyLabels(dataLabels, securityLabels, thirdPartyVerification);
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SecurityLabels.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SecurityLabels.java
index 48643ba..ccb8445 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SecurityLabels.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SecurityLabels.java
@@ -21,8 +21,6 @@
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
-import java.util.List;
-
 /** Security Labels representation */
 public class SecurityLabels implements AslMarshallable {
 
@@ -35,8 +33,7 @@
     }
 
     /** Creates an on-device DOM element from the {@link SecurityLabels}. */
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    public Element toOdDomElement(Document doc) {
         Element ele = XmlUtils.createPbundleEleWithName(doc, XmlUtils.OD_NAME_SECURITY_LABELS);
         if (mIsDataDeletable != null) {
             ele.appendChild(
@@ -48,12 +45,11 @@
                     XmlUtils.createOdBooleanEle(
                             doc, XmlUtils.OD_NAME_IS_DATA_ENCRYPTED, mIsDataEncrypted));
         }
-        return XmlUtils.listOf(ele);
+        return ele;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
-    public List<Element> toHrDomElements(Document doc) {
+    public Element toHrDomElement(Document doc) {
         Element ele = doc.createElement(XmlUtils.HR_TAG_SECURITY_LABELS);
         if (mIsDataDeletable != null) {
             ele.setAttribute(XmlUtils.HR_ATTR_IS_DATA_DELETABLE, String.valueOf(mIsDataDeletable));
@@ -61,6 +57,6 @@
         if (mIsDataEncrypted != null) {
             ele.setAttribute(XmlUtils.HR_ATTR_IS_DATA_ENCRYPTED, String.valueOf(mIsDataEncrypted));
         }
-        return XmlUtils.listOf(ele);
+        return ele;
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SecurityLabelsFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SecurityLabelsFactory.java
index 525a803..da98a42 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SecurityLabelsFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SecurityLabelsFactory.java
@@ -22,15 +22,10 @@
 
 import org.w3c.dom.Element;
 
-import java.util.List;
-
 public class SecurityLabelsFactory implements AslMarshallableFactory<SecurityLabels> {
 
     /** Creates a {@link SecurityLabels} from the human-readable DOM element. */
-    @Override
-    public SecurityLabels createFromHrElements(List<Element> elements)
-            throws MalformedXmlException {
-        Element ele = XmlUtils.getSingleElement(elements);
+    public SecurityLabels createFromHrElement(Element ele) throws MalformedXmlException {
         if (ele == null) {
             AslgenUtil.logI("No SecurityLabels found in hr format.");
             return null;
@@ -43,10 +38,7 @@
     }
 
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    @Override
-    public SecurityLabels createFromOdElements(List<Element> elements)
-            throws MalformedXmlException {
-        Element ele = XmlUtils.getSingleElement(elements);
+    public SecurityLabels createFromOdElement(Element ele) throws MalformedXmlException {
         if (ele == null) {
             AslgenUtil.logI("No SecurityLabels found in od format.");
             return null;
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SystemAppSafetyLabel.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SystemAppSafetyLabel.java
index 242e7be..10d6e1a 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SystemAppSafetyLabel.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SystemAppSafetyLabel.java
@@ -21,34 +21,43 @@
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
-import java.util.List;
-
 /** Safety Label representation containing zero or more {@link DataCategory} for data shared */
 public class SystemAppSafetyLabel implements AslMarshallable {
 
+    private final String mUrl;
     private final Boolean mDeclaration;
 
-    public SystemAppSafetyLabel(Boolean d) {
+    public SystemAppSafetyLabel(String url, Boolean d) {
         this.mDeclaration = d;
+        this.mUrl = null;
     }
 
     /** Creates an on-device DOM element from the {@link SystemAppSafetyLabel}. */
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    public Element toOdDomElement(Document doc) {
         Element systemAppSafetyLabelEle =
                 XmlUtils.createPbundleEleWithName(doc, XmlUtils.OD_NAME_SYSTEM_APP_SAFETY_LABEL);
-        systemAppSafetyLabelEle.appendChild(
-                XmlUtils.createOdBooleanEle(doc, XmlUtils.OD_NAME_DECLARATION, mDeclaration));
-        return XmlUtils.listOf(systemAppSafetyLabelEle);
+        if (mUrl != null) {
+            systemAppSafetyLabelEle.appendChild(
+                    XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_URL, mUrl));
+        }
+        if (mDeclaration != null) {
+            systemAppSafetyLabelEle.appendChild(
+                    XmlUtils.createOdBooleanEle(doc, XmlUtils.OD_NAME_DECLARATION, mDeclaration));
+        }
+        return systemAppSafetyLabelEle;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
-    public List<Element> toHrDomElements(Document doc) {
+    public Element toHrDomElement(Document doc) {
         Element systemAppSafetyLabelEle =
                 doc.createElement(XmlUtils.HR_TAG_SYSTEM_APP_SAFETY_LABEL);
-        XmlUtils.maybeSetHrBoolAttr(
-                systemAppSafetyLabelEle, XmlUtils.HR_ATTR_DECLARATION, mDeclaration);
-        return XmlUtils.listOf(systemAppSafetyLabelEle);
+        if (mUrl != null) {
+            systemAppSafetyLabelEle.setAttribute(XmlUtils.HR_ATTR_URL, mUrl);
+        }
+        if (mDeclaration != null) {
+            systemAppSafetyLabelEle.setAttribute(
+                    XmlUtils.HR_ATTR_DECLARATION, String.valueOf(mDeclaration));
+        }
+        return systemAppSafetyLabelEle;
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SystemAppSafetyLabelFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SystemAppSafetyLabelFactory.java
index 7f4aa7a..971ae92 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SystemAppSafetyLabelFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/SystemAppSafetyLabelFactory.java
@@ -16,42 +16,77 @@
 
 package com.android.asllib.marshallable;
 
-import com.android.asllib.util.AslgenUtil;
 import com.android.asllib.util.MalformedXmlException;
 import com.android.asllib.util.XmlUtils;
 
 import org.w3c.dom.Element;
 
-import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
 public class SystemAppSafetyLabelFactory implements AslMarshallableFactory<SystemAppSafetyLabel> {
+    private final Map<Long, Set<String>> mRecognizedHrAttrs =
+            Map.ofEntries(
+                    Map.entry(1L, Set.of(XmlUtils.HR_ATTR_URL)),
+                    Map.entry(2L, Set.of(XmlUtils.HR_ATTR_DECLARATION)));
+    private final Map<Long, Set<String>> mRequiredHrAttrs =
+            Map.ofEntries(
+                    Map.entry(1L, Set.of(XmlUtils.HR_ATTR_URL)),
+                    Map.entry(2L, Set.of(XmlUtils.HR_ATTR_DECLARATION)));
+    private final Map<Long, Set<String>> mRecognizedHrEles = Map.ofEntries(Map.entry(1L, Set.of()));
+    private final Map<Long, Set<String>> mRecognizedOdEleNames =
+            Map.ofEntries(
+                    Map.entry(1L, Set.of(XmlUtils.OD_NAME_URL)),
+                    Map.entry(2L, Set.of(XmlUtils.OD_NAME_DECLARATION)));
+    private final Map<Long, Set<String>> mRequiredOdEleNames =
+            Map.ofEntries(
+                    Map.entry(1L, Set.of(XmlUtils.OD_NAME_URL)),
+                    Map.entry(2L, Set.of(XmlUtils.OD_NAME_DECLARATION)));
 
     /** Creates a {@link SystemAppSafetyLabel} from the human-readable DOM element. */
-    @Override
-    public SystemAppSafetyLabel createFromHrElements(List<Element> elements)
+    public SystemAppSafetyLabel createFromHrElement(Element systemAppSafetyLabelEle, long version)
             throws MalformedXmlException {
-        Element systemAppSafetyLabelEle = XmlUtils.getSingleElement(elements);
         if (systemAppSafetyLabelEle == null) {
-            AslgenUtil.logI("No SystemAppSafetyLabel found in hr format.");
             return null;
         }
+        XmlUtils.throwIfExtraneousAttributes(
+                systemAppSafetyLabelEle,
+                XmlUtils.getMostRecentVersion(mRecognizedHrAttrs, version));
+        XmlUtils.throwIfExtraneousChildrenHr(
+                systemAppSafetyLabelEle, XmlUtils.getMostRecentVersion(mRecognizedHrEles, version));
 
+        String url =
+                XmlUtils.getStringAttr(
+                        systemAppSafetyLabelEle,
+                        XmlUtils.HR_ATTR_URL,
+                        XmlUtils.getMostRecentVersion(mRequiredHrAttrs, version));
         Boolean declaration =
-                XmlUtils.getBoolAttr(systemAppSafetyLabelEle, XmlUtils.HR_ATTR_DECLARATION, true);
-        return new SystemAppSafetyLabel(declaration);
+                XmlUtils.getBoolAttr(
+                        systemAppSafetyLabelEle,
+                        XmlUtils.HR_ATTR_DECLARATION,
+                        XmlUtils.getMostRecentVersion(mRequiredHrAttrs, version));
+        return new SystemAppSafetyLabel(url, declaration);
     }
 
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    @Override
-    public SystemAppSafetyLabel createFromOdElements(List<Element> elements)
+    public SystemAppSafetyLabel createFromOdElement(Element systemAppSafetyLabelEle, long version)
             throws MalformedXmlException {
-        Element systemAppSafetyLabelEle = XmlUtils.getSingleElement(elements);
         if (systemAppSafetyLabelEle == null) {
-            AslgenUtil.logI("No SystemAppSafetyLabel found in od format.");
             return null;
         }
+        XmlUtils.throwIfExtraneousChildrenOd(
+                systemAppSafetyLabelEle,
+                XmlUtils.getMostRecentVersion(mRecognizedOdEleNames, version));
+        String url =
+                XmlUtils.getOdStringEle(
+                        systemAppSafetyLabelEle,
+                        XmlUtils.OD_NAME_URL,
+                        XmlUtils.getMostRecentVersion(mRequiredOdEleNames, version));
         Boolean declaration =
-                XmlUtils.getOdBoolEle(systemAppSafetyLabelEle, XmlUtils.OD_NAME_DECLARATION, true);
-        return new SystemAppSafetyLabel(declaration);
+                XmlUtils.getOdBoolEle(
+                        systemAppSafetyLabelEle,
+                        XmlUtils.OD_NAME_DECLARATION,
+                        XmlUtils.getMostRecentVersion(mRequiredOdEleNames, version));
+        return new SystemAppSafetyLabel(url, declaration);
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/ThirdPartyVerification.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/ThirdPartyVerification.java
index d74f3f0..151cdb1 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/ThirdPartyVerification.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/ThirdPartyVerification.java
@@ -21,8 +21,6 @@
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
-import java.util.List;
-
 /** ThirdPartyVerification representation. */
 public class ThirdPartyVerification implements AslMarshallable {
 
@@ -33,19 +31,17 @@
     }
 
     /** Creates an on-device DOM element from the {@link ThirdPartyVerification}. */
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    public Element toOdDomElement(Document doc) {
         Element ele =
                 XmlUtils.createPbundleEleWithName(doc, XmlUtils.OD_NAME_THIRD_PARTY_VERIFICATION);
         ele.appendChild(XmlUtils.createOdStringEle(doc, XmlUtils.OD_NAME_URL, mUrl));
-        return XmlUtils.listOf(ele);
+        return ele;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
-    public List<Element> toHrDomElements(Document doc) {
+    public Element toHrDomElement(Document doc) {
         Element ele = doc.createElement(XmlUtils.HR_TAG_THIRD_PARTY_VERIFICATION);
         ele.setAttribute(XmlUtils.HR_ATTR_URL, mUrl);
-        return XmlUtils.listOf(ele);
+        return ele;
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/ThirdPartyVerificationFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/ThirdPartyVerificationFactory.java
index 197e7aa..f229ad6 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/ThirdPartyVerificationFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/ThirdPartyVerificationFactory.java
@@ -22,16 +22,11 @@
 
 import org.w3c.dom.Element;
 
-import java.util.List;
-
 public class ThirdPartyVerificationFactory
         implements AslMarshallableFactory<ThirdPartyVerification> {
 
     /** Creates a {@link ThirdPartyVerification} from the human-readable DOM element. */
-    @Override
-    public ThirdPartyVerification createFromHrElements(List<Element> elements)
-            throws MalformedXmlException {
-        Element ele = XmlUtils.getSingleElement(elements);
+    public ThirdPartyVerification createFromHrElement(Element ele) throws MalformedXmlException {
         if (ele == null) {
             AslgenUtil.logI("No ThirdPartyVerification found in hr format.");
             return null;
@@ -42,10 +37,7 @@
     }
 
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    @Override
-    public ThirdPartyVerification createFromOdElements(List<Element> elements)
-            throws MalformedXmlException {
-        Element ele = XmlUtils.getSingleElement(elements);
+    public ThirdPartyVerification createFromOdElement(Element ele) throws MalformedXmlException {
         if (ele == null) {
             AslgenUtil.logI("No ThirdPartyVerification found in od format.");
             return null;
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/TransparencyInfo.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/TransparencyInfo.java
index 9f789f0..f24e6bf 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/TransparencyInfo.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/TransparencyInfo.java
@@ -21,39 +21,39 @@
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
-import java.util.List;
-
 /** TransparencyInfo representation containing {@link AppInfo} */
 public class TransparencyInfo implements AslMarshallable {
+
+    private final DeveloperInfo mDeveloperInfo;
     private final AppInfo mAppInfo;
 
-    public TransparencyInfo(AppInfo appInfo) {
+    public TransparencyInfo(DeveloperInfo developerInfo, AppInfo appInfo) {
+        this.mDeveloperInfo = developerInfo;
         this.mAppInfo = appInfo;
     }
 
-    /** Gets the {@link AppInfo} of the {@link TransparencyInfo}. */
-    public AppInfo getAppInfo() {
-        return mAppInfo;
-    }
-
     /** Creates an on-device DOM element from the {@link TransparencyInfo}. */
-    @Override
-    public List<Element> toOdDomElements(Document doc) {
+    public Element toOdDomElement(Document doc) {
         Element transparencyInfoEle =
                 XmlUtils.createPbundleEleWithName(doc, XmlUtils.OD_NAME_TRANSPARENCY_INFO);
-        if (mAppInfo != null) {
-            XmlUtils.appendChildren(transparencyInfoEle, mAppInfo.toOdDomElements(doc));
+        if (mDeveloperInfo != null) {
+            transparencyInfoEle.appendChild(mDeveloperInfo.toOdDomElement(doc));
         }
-        return XmlUtils.listOf(transparencyInfoEle);
+        if (mAppInfo != null) {
+            transparencyInfoEle.appendChild(mAppInfo.toOdDomElement(doc));
+        }
+        return transparencyInfoEle;
     }
 
     /** Creates the human-readable DOM elements from the AslMarshallable Java Object. */
-    @Override
-    public List<Element> toHrDomElements(Document doc) {
+    public Element toHrDomElement(Document doc) {
         Element transparencyInfoEle = doc.createElement(XmlUtils.HR_TAG_TRANSPARENCY_INFO);
-        if (mAppInfo != null) {
-            XmlUtils.appendChildren(transparencyInfoEle, mAppInfo.toHrDomElements(doc));
+        if (mDeveloperInfo != null) {
+            transparencyInfoEle.appendChild(mDeveloperInfo.toHrDomElement(doc));
         }
-        return XmlUtils.listOf(transparencyInfoEle);
+        if (mAppInfo != null) {
+            transparencyInfoEle.appendChild(mAppInfo.toHrDomElement(doc));
+        }
+        return transparencyInfoEle;
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/TransparencyInfoFactory.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/TransparencyInfoFactory.java
index 40f2872..9e98941 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/TransparencyInfoFactory.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/marshallable/TransparencyInfoFactory.java
@@ -16,47 +16,84 @@
 
 package com.android.asllib.marshallable;
 
-import com.android.asllib.util.AslgenUtil;
 import com.android.asllib.util.MalformedXmlException;
 import com.android.asllib.util.XmlUtils;
 
 import org.w3c.dom.Element;
 
-import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
 public class TransparencyInfoFactory implements AslMarshallableFactory<TransparencyInfo> {
+    private final Map<Long, Set<String>> mRecognizedHrAttrs =
+            Map.ofEntries(Map.entry(1L, Set.of()));
+    private final Map<Long, Set<String>> mRequiredHrAttrs = Map.ofEntries(Map.entry(1L, Set.of()));
+    private final Map<Long, Set<String>> mRecognizedHrEles =
+            Map.ofEntries(
+                    Map.entry(1L, Set.of(XmlUtils.HR_TAG_DEVELOPER_INFO, XmlUtils.HR_TAG_APP_INFO)),
+                    Map.entry(2L, Set.of(XmlUtils.HR_TAG_APP_INFO)));
+    private final Map<Long, Set<String>> mRequiredHrEles =
+            Map.ofEntries(Map.entry(1L, Set.of()), Map.entry(2L, Set.of(XmlUtils.HR_TAG_APP_INFO)));
+    private final Map<Long, Set<String>> mRecognizedOdEleNames =
+            Map.ofEntries(
+                    Map.entry(
+                            1L, Set.of(XmlUtils.OD_NAME_DEVELOPER_INFO, XmlUtils.OD_NAME_APP_INFO)),
+                    Map.entry(2L, Set.of(XmlUtils.OD_NAME_APP_INFO)));
+    private final Map<Long, Set<String>> mRequiredOdEles =
+            Map.ofEntries(
+                    Map.entry(1L, Set.of()), Map.entry(2L, Set.of(XmlUtils.OD_NAME_APP_INFO)));
 
     /** Creates a {@link TransparencyInfo} from the human-readable DOM element. */
-    @Override
-    public TransparencyInfo createFromHrElements(List<Element> elements)
+    public TransparencyInfo createFromHrElement(Element transparencyInfoEle, long version)
             throws MalformedXmlException {
-        Element transparencyInfoEle = XmlUtils.getSingleElement(elements);
         if (transparencyInfoEle == null) {
-            AslgenUtil.logI("No TransparencyInfo found in hr format.");
             return null;
         }
+        XmlUtils.throwIfExtraneousAttributes(
+                transparencyInfoEle, XmlUtils.getMostRecentVersion(mRecognizedHrAttrs, version));
+        XmlUtils.throwIfExtraneousChildrenHr(
+                transparencyInfoEle, XmlUtils.getMostRecentVersion(mRecognizedHrEles, version));
 
+        Element developerInfoEle =
+                XmlUtils.getSingleChildElement(
+                        transparencyInfoEle,
+                        XmlUtils.HR_TAG_DEVELOPER_INFO,
+                        XmlUtils.getMostRecentVersion(mRequiredHrEles, version));
+        DeveloperInfo developerInfo =
+                new DeveloperInfoFactory().createFromHrElement(developerInfoEle);
         Element appInfoEle =
-                XmlUtils.getSingleChildElement(transparencyInfoEle, XmlUtils.HR_TAG_APP_INFO, true);
-        AppInfo appInfo = new AppInfoFactory().createFromHrElements(XmlUtils.listOf(appInfoEle));
+                XmlUtils.getSingleChildElement(
+                        transparencyInfoEle,
+                        XmlUtils.HR_TAG_APP_INFO,
+                        XmlUtils.getMostRecentVersion(mRequiredHrEles, version));
+        AppInfo appInfo = new AppInfoFactory().createFromHrElement(appInfoEle, version);
 
-        return new TransparencyInfo(appInfo);
+        return new TransparencyInfo(developerInfo, appInfo);
     }
 
     /** Creates an {@link AslMarshallableFactory} from on-device DOM elements */
-    @Override
-    public TransparencyInfo createFromOdElements(List<Element> elements)
+    public TransparencyInfo createFromOdElement(Element transparencyInfoEle, long version)
             throws MalformedXmlException {
-        Element transparencyInfoEle = XmlUtils.getSingleElement(elements);
         if (transparencyInfoEle == null) {
-            AslgenUtil.logI("No TransparencyInfo found in od format.");
             return null;
         }
+        XmlUtils.throwIfExtraneousChildrenOd(
+                transparencyInfoEle, XmlUtils.getMostRecentVersion(mRecognizedOdEleNames, version));
 
+        Element developerInfoEle =
+                XmlUtils.getOdPbundleWithName(
+                        transparencyInfoEle,
+                        XmlUtils.OD_NAME_DEVELOPER_INFO,
+                        XmlUtils.getMostRecentVersion(mRequiredOdEles, version));
+        DeveloperInfo developerInfo =
+                new DeveloperInfoFactory().createFromOdElement(developerInfoEle);
         Element appInfoEle =
-                XmlUtils.getOdPbundleWithName(transparencyInfoEle, XmlUtils.OD_NAME_APP_INFO, true);
-        AppInfo appInfo = new AppInfoFactory().createFromOdElements(XmlUtils.listOf(appInfoEle));
+                XmlUtils.getOdPbundleWithName(
+                        transparencyInfoEle,
+                        XmlUtils.OD_NAME_APP_INFO,
+                        XmlUtils.getMostRecentVersion(mRequiredOdEles, version));
+        AppInfo appInfo = new AppInfoFactory().createFromOdElement(appInfoEle, version);
 
-        return new TransparencyInfo(appInfo);
+        return new TransparencyInfo(developerInfo, appInfo);
     }
 }
diff --git a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/util/XmlUtils.java b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/util/XmlUtils.java
index 2c1517b..52c4390 100644
--- a/tools/app_metadata_bundles/src/lib/java/com/android/asllib/util/XmlUtils.java
+++ b/tools/app_metadata_bundles/src/lib/java/com/android/asllib/util/XmlUtils.java
@@ -25,6 +25,8 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Map;
+import java.util.Set;
 import java.util.stream.Collectors;
 
 public class XmlUtils {
@@ -70,6 +72,8 @@
     public static final String HR_ATTR_ADS_FINGERPRINTING = "adsFingerprinting";
     public static final String HR_ATTR_SECURITY_FINGERPRINTING = "securityFingerprinting";
     public static final String HR_ATTR_PRIVACY_POLICY = "privacyPolicy";
+    public static final String HR_ATTR_DEVELOPER_ID = "developerId";
+    public static final String HR_ATTR_APPLICATION_ID = "applicationId";
     public static final String HR_ATTR_SECURITY_ENDPOINTS = "securityEndpoints";
     public static final String HR_TAG_FIRST_PARTY_ENDPOINTS = "first-party-endpoints";
     public static final String HR_TAG_SERVICE_PROVIDER_ENDPOINTS = "service-provider-endpoints";
@@ -102,10 +106,12 @@
     public static final String OD_NAME_CONTAINS_ADS = "contains_ads";
     public static final String OD_NAME_OBEY_APS = "obey_aps";
     public static final String OD_NAME_APS_COMPLIANT = "aps_compliant";
+    public static final String OD_NAME_DEVELOPER_ID = "developer_id";
+    public static final String OD_NAME_APPLICATION_ID = "application_id";
     public static final String OD_NAME_ADS_FINGERPRINTING = "ads_fingerprinting";
     public static final String OD_NAME_SECURITY_FINGERPRINTING = "security_fingerprinting";
     public static final String OD_NAME_PRIVACY_POLICY = "privacy_policy";
-    public static final String OD_NAME_SECURITY_ENDPOINT = "security_endpoints";
+    public static final String OD_NAME_SECURITY_ENDPOINTS = "security_endpoints";
     public static final String OD_NAME_FIRST_PARTY_ENDPOINTS = "first_party_endpoints";
     public static final String OD_NAME_SERVICE_PROVIDER_ENDPOINTS = "service_provider_endpoints";
     public static final String OD_NAME_CATEGORY = "category";
@@ -140,6 +146,15 @@
     /**
      * Gets the single {@link Element} within {@param parentEle} and having the {@param tagName}.
      */
+    public static Element getSingleChildElement(
+            Node parentEle, String tagName, Set<String> requiredStrings)
+            throws MalformedXmlException {
+        return getSingleChildElement(parentEle, tagName, requiredStrings.contains(tagName));
+    }
+
+    /**
+     * Gets the single {@link Element} within {@param parentEle} and having the {@param tagName}.
+     */
     public static Element getSingleChildElement(Node parentEle, String tagName, boolean required)
             throws MalformedXmlException {
         String parentTagNameForErrorMsg =
@@ -287,19 +302,36 @@
     }
 
     /** Gets a pipeline-split attribute. */
+    public static List<String> getPipelineSplitAttr(
+            Element ele, String attrName, Set<String> requiredNames) throws MalformedXmlException {
+        return getPipelineSplitAttr(ele, attrName, requiredNames.contains(attrName));
+    }
+
+    /** Gets a pipeline-split attribute. */
     public static List<String> getPipelineSplitAttr(Element ele, String attrName, boolean required)
             throws MalformedXmlException {
         List<String> list =
                 Arrays.stream(ele.getAttribute(attrName).split("\\|")).collect(Collectors.toList());
-        if ((list.isEmpty() || list.get(0).isEmpty()) && required) {
-            throw new MalformedXmlException(
-                    String.format(
-                            "Delimited string %s was required but missing, in %s.",
-                            attrName, ele.getTagName()));
+        if ((list.isEmpty() || list.get(0).isEmpty())) {
+            if (required) {
+                throw new MalformedXmlException(
+                        String.format(
+                                "Delimited string %s was required but missing, in %s.",
+                                attrName, ele.getTagName()));
+            }
+            return null;
         }
         return list;
     }
 
+    /**
+     * Gets the single {@link Element} within {@param parentEle} and having the {@param tagName}.
+     */
+    public static Boolean getBoolAttr(Element ele, String attrName, Set<String> requiredStrings)
+            throws MalformedXmlException {
+        return getBoolAttr(ele, attrName, requiredStrings.contains(attrName));
+    }
+
     /** Gets a Boolean attribute. */
     public static Boolean getBoolAttr(Element ele, String attrName, boolean required)
             throws MalformedXmlException {
@@ -314,6 +346,12 @@
     }
 
     /** Gets a Boolean attribute. */
+    public static Boolean getOdBoolEle(Element ele, String nameName, Set<String> requiredNames)
+            throws MalformedXmlException {
+        return getOdBoolEle(ele, nameName, requiredNames.contains(nameName));
+    }
+
+    /** Gets a Boolean attribute. */
     public static Boolean getOdBoolEle(Element ele, String nameName, boolean required)
             throws MalformedXmlException {
         List<Element> boolEles =
@@ -376,6 +414,12 @@
     }
 
     /** Gets an on-device String attribute. */
+    public static String getOdStringEle(Element ele, String nameName, Set<String> requiredNames)
+            throws MalformedXmlException {
+        return getOdStringEle(ele, nameName, requiredNames.contains(nameName));
+    }
+
+    /** Gets an on-device String attribute. */
     public static String getOdStringEle(Element ele, String nameName, boolean required)
             throws MalformedXmlException {
         List<Element> eles =
@@ -404,6 +448,13 @@
     }
 
     /** Gets a OD Pbundle Element attribute with the specified name. */
+    public static Element getOdPbundleWithName(
+            Element ele, String nameName, Set<String> requiredStrings)
+            throws MalformedXmlException {
+        return getOdPbundleWithName(ele, nameName, requiredStrings.contains(nameName));
+    }
+
+    /** Gets a OD Pbundle Element attribute with the specified name. */
     public static Element getOdPbundleWithName(Element ele, String nameName, boolean required)
             throws MalformedXmlException {
         List<Element> eles =
@@ -425,6 +476,14 @@
         return eles.get(0);
     }
 
+    /**
+     * Gets the single {@link Element} within {@param parentEle} and having the {@param tagName}.
+     */
+    public static String getStringAttr(Element ele, String attrName, Set<String> requiredStrings)
+            throws MalformedXmlException {
+        return getStringAttr(ele, attrName, requiredStrings.contains(attrName));
+    }
+
     /** Gets a required String attribute. */
     public static String getStringAttr(Element ele, String attrName) throws MalformedXmlException {
         return getStringAttr(ele, attrName, true);
@@ -476,6 +535,13 @@
 
     /** Gets human-readable style String array. */
     public static List<String> getHrItemsAsStrings(
+            Element parent, String elementName, Set<String> requiredNames)
+            throws MalformedXmlException {
+        return getHrItemsAsStrings(parent, elementName, requiredNames.contains(elementName));
+    }
+
+    /** Gets human-readable style String array. */
+    public static List<String> getHrItemsAsStrings(
             Element parent, String elementName, boolean required) throws MalformedXmlException {
 
         List<Element> arrayEles = XmlUtils.getChildrenByTagName(parent, elementName);
@@ -501,6 +567,12 @@
     }
 
     /** Gets on-device style String array. */
+    public static List<String> getOdStringArray(
+            Element ele, String nameName, Set<String> requiredNames) throws MalformedXmlException {
+        return getOdStringArray(ele, nameName, requiredNames.contains(nameName));
+    }
+
+    /** Gets on-device style String array. */
     public static List<String> getOdStringArray(Element ele, String nameName, boolean required)
             throws MalformedXmlException {
         List<Element> arrayEles =
@@ -530,6 +602,73 @@
         return strs;
     }
 
+    /** Throws if extraneous child elements detected */
+    public static void throwIfExtraneousChildrenHr(Element ele, Set<String> expectedChildNames)
+            throws MalformedXmlException {
+        var childEles = XmlUtils.asElementList(ele.getChildNodes());
+        List<Element> extraneousEles =
+                childEles.stream()
+                        .filter(e -> !expectedChildNames.contains(e.getTagName()))
+                        .collect(Collectors.toList());
+        if (!extraneousEles.isEmpty()) {
+            throw new MalformedXmlException(
+                    String.format(
+                            "Unexpected element(s) %s in %s.",
+                            extraneousEles.stream()
+                                    .map(Element::getTagName)
+                                    .collect(Collectors.joining(",")),
+                            ele.getTagName()));
+        }
+    }
+
+    /** Throws if extraneous child elements detected */
+    public static void throwIfExtraneousChildrenOd(Element ele, Set<String> expectedChildNames)
+            throws MalformedXmlException {
+        var allChildElements = XmlUtils.asElementList(ele.getChildNodes());
+        List<Element> extraneousEles =
+                allChildElements.stream()
+                        .filter(
+                                e ->
+                                        !e.getAttribute(XmlUtils.OD_ATTR_NAME).isEmpty()
+                                                && !expectedChildNames.contains(
+                                                        e.getAttribute(XmlUtils.OD_ATTR_NAME)))
+                        .collect(Collectors.toList());
+        if (!extraneousEles.isEmpty()) {
+            throw new MalformedXmlException(
+                    String.format(
+                            "Unexpected element(s) in %s: %s",
+                            ele.getTagName(),
+                            extraneousEles.stream()
+                                    .map(
+                                            e ->
+                                                    String.format(
+                                                            "%s name=%s",
+                                                            e.getTagName(),
+                                                            e.getAttribute(XmlUtils.OD_ATTR_NAME)))
+                                    .collect(Collectors.joining(","))));
+        }
+    }
+
+    /** Throws if extraneous attributes detected */
+    public static void throwIfExtraneousAttributes(Element ele, Set<String> expectedAttrNames)
+            throws MalformedXmlException {
+        var attrs = ele.getAttributes();
+        List<String> attrNames = new ArrayList<>();
+        for (int i = 0; i < attrs.getLength(); i++) {
+            attrNames.add(attrs.item(i).getNodeName());
+        }
+        List<String> extraneousAttrs =
+                attrNames.stream()
+                        .filter(s -> !expectedAttrNames.contains(s))
+                        .collect(Collectors.toList());
+        if (!extraneousAttrs.isEmpty()) {
+            throw new MalformedXmlException(
+                    String.format(
+                            "Unexpected attr(s) %s in %s.",
+                            String.join(",", extraneousAttrs), ele.getTagName()));
+        }
+    }
+
     /**
      * Utility method for making a List from one element, to support easier refactoring if needed.
      * For example, List.of() doesn't support null elements.
@@ -537,4 +676,26 @@
     public static List<Element> listOf(Element e) {
         return Arrays.asList(e);
     }
+
+    /**
+     * Gets the most recent version of fields in the mapping. This way when a new version is
+     * released, we only need to update the mappings that were modified. The rest will fall back to
+     * the most recent previous version.
+     */
+    public static Set<String> getMostRecentVersion(
+            Map<Long, Set<String>> versionToFieldsMapping, long version)
+            throws MalformedXmlException {
+        long bestVersion = 0;
+        Set<String> bestSet = null;
+        for (Map.Entry<Long, Set<String>> entry : versionToFieldsMapping.entrySet()) {
+            if (entry.getKey() > bestVersion && entry.getKey() <= version) {
+                bestVersion = entry.getKey();
+                bestSet = entry.getValue();
+            }
+        }
+        if (bestSet == null) {
+            throw new MalformedXmlException("Unexpected version: " + version);
+        }
+        return bestSet;
+    }
 }
diff --git a/tools/app_metadata_bundles/src/test/java/com/android/asllib/AslgenTests.java b/tools/app_metadata_bundles/src/test/java/com/android/asllib/AslgenTests.java
index 5d1d45a..262f76d 100644
--- a/tools/app_metadata_bundles/src/test/java/com/android/asllib/AslgenTests.java
+++ b/tools/app_metadata_bundles/src/test/java/com/android/asllib/AslgenTests.java
@@ -41,6 +41,18 @@
     /** Logic for setting up tests (empty if not yet needed). */
     public static void main(String[] params) throws Exception {}
 
+    @Test
+    public void testValidOd() throws Exception {
+        System.out.println("start testing valid od.");
+        Path odPath = Paths.get(VALID_MAPPINGS_PATH, "general-v1", OD_XML_FILENAME);
+        InputStream odStream = getClass().getClassLoader().getResourceAsStream(odPath.toString());
+        String odContents =
+                TestUtils.getFormattedXml(
+                        new String(odStream.readAllBytes(), StandardCharsets.UTF_8), false);
+        AndroidSafetyLabel unusedAsl =
+                AslConverter.readFromString(odContents, AslConverter.Format.ON_DEVICE);
+    }
+
     /** Tests valid mappings between HR and OD. */
     @Test
     public void testValidMappings() throws Exception {
diff --git a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/AndroidSafetyLabelTest.java b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/AndroidSafetyLabelTest.java
index 61a7823..283ccbc 100644
--- a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/AndroidSafetyLabelTest.java
+++ b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/AndroidSafetyLabelTest.java
@@ -16,12 +16,18 @@
 
 package com.android.asllib.marshallable;
 
+import static org.junit.Assert.assertThrows;
+
 import com.android.asllib.testutils.TestUtils;
+import com.android.asllib.util.MalformedXmlException;
 
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
+import org.w3c.dom.Element;
+
+import java.nio.file.Paths;
 
 @RunWith(JUnit4.class)
 public class AndroidSafetyLabelTest {
@@ -66,47 +72,49 @@
         testOdToHrAndroidSafetyLabel(WITH_SAFETY_LABELS_FILE_NAME);
     }
 
-    /** Test for android safety label with system app safety label. */
-    @Test
-    public void testAndroidSafetyLabelWithSystemAppSafetyLabel() throws Exception {
-        System.out.println("starting testAndroidSafetyLabelWithSystemAppSafetyLabel.");
-        testHrToOdAndroidSafetyLabel(WITH_SYSTEM_APP_SAFETY_LABEL_FILE_NAME);
-        testOdToHrAndroidSafetyLabel(WITH_SYSTEM_APP_SAFETY_LABEL_FILE_NAME);
-    }
-
-    /** Test for android safety label with transparency info. */
-    @Test
-    public void testAndroidSafetyLabelWithTransparencyInfo() throws Exception {
-        System.out.println("starting testAndroidSafetyLabelWithTransparencyInfo.");
-        testHrToOdAndroidSafetyLabel(WITH_TRANSPARENCY_INFO_FILE_NAME);
-        testOdToHrAndroidSafetyLabel(WITH_TRANSPARENCY_INFO_FILE_NAME);
-    }
-
     private void hrToOdExpectException(String fileName) {
-        TestUtils.hrToOdExpectException(
-                new AndroidSafetyLabelFactory(), ANDROID_SAFETY_LABEL_HR_PATH, fileName);
+        assertThrows(
+                MalformedXmlException.class,
+                () -> {
+                    new AndroidSafetyLabelFactory()
+                            .createFromHrElement(
+                                    TestUtils.getElementFromResource(
+                                            Paths.get(ANDROID_SAFETY_LABEL_HR_PATH, fileName)));
+                });
     }
 
     private void odToHrExpectException(String fileName) {
-        TestUtils.odToHrExpectException(
-                new AndroidSafetyLabelFactory(), ANDROID_SAFETY_LABEL_OD_PATH, fileName);
+        assertThrows(
+                MalformedXmlException.class,
+                () -> {
+                    new AndroidSafetyLabelFactory()
+                            .createFromOdElement(
+                                    TestUtils.getElementFromResource(
+                                            Paths.get(ANDROID_SAFETY_LABEL_OD_PATH, fileName)));
+                });
     }
 
     private void testHrToOdAndroidSafetyLabel(String fileName) throws Exception {
-        TestUtils.testHrToOd(
-                TestUtils.document(),
-                new AndroidSafetyLabelFactory(),
-                ANDROID_SAFETY_LABEL_HR_PATH,
-                ANDROID_SAFETY_LABEL_OD_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        AndroidSafetyLabel asl =
+                new AndroidSafetyLabelFactory()
+                        .createFromHrElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(ANDROID_SAFETY_LABEL_HR_PATH, fileName)));
+        Element aslEle = asl.toOdDomElement(doc);
+        doc.appendChild(aslEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(ANDROID_SAFETY_LABEL_OD_PATH, fileName));
     }
 
     private void testOdToHrAndroidSafetyLabel(String fileName) throws Exception {
-        TestUtils.testOdToHr(
-                TestUtils.document(),
-                new AndroidSafetyLabelFactory(),
-                ANDROID_SAFETY_LABEL_OD_PATH,
-                ANDROID_SAFETY_LABEL_HR_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        AndroidSafetyLabel asl =
+                new AndroidSafetyLabelFactory()
+                        .createFromOdElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(ANDROID_SAFETY_LABEL_OD_PATH, fileName)));
+        Element aslEle = asl.toHrDomElement(doc);
+        doc.appendChild(aslEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(ANDROID_SAFETY_LABEL_HR_PATH, fileName));
     }
 }
diff --git a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/AppInfoTest.java b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/AppInfoTest.java
index d823c48..7806061 100644
--- a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/AppInfoTest.java
+++ b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/AppInfoTest.java
@@ -26,12 +26,14 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
+import org.w3c.dom.Element;
 
 import java.nio.file.Paths;
 import java.util.List;
 
 @RunWith(JUnit4.class)
 public class AppInfoTest {
+    private static final long DEFAULT_VERSION = 2L;
     private static final String APP_INFO_HR_PATH = "com/android/asllib/appinfo/hr";
     private static final String APP_INFO_OD_PATH = "com/android/asllib/appinfo/od";
     public static final List<String> REQUIRED_FIELD_NAMES =
@@ -45,7 +47,24 @@
     public static final List<String> OPTIONAL_FIELD_NAMES = List.of();
     public static final List<String> OPTIONAL_FIELD_NAMES_OD = List.of();
 
+    public static final List<String> REQUIRED_FIELD_NAMES_OD_V1 =
+            List.of(
+                    "title",
+                    "description",
+                    "contains_ads",
+                    "obey_aps",
+                    "ads_fingerprinting",
+                    "security_fingerprinting",
+                    "privacy_policy",
+                    "security_endpoints",
+                    "first_party_endpoints",
+                    "service_provider_endpoints",
+                    "category");
+    public static final List<String> OPTIONAL_FIELD_NAMES_OD_V1 = List.of("website", "email");
+
     private static final String ALL_FIELDS_VALID_FILE_NAME = "all-fields-valid.xml";
+    private static final String ALL_FIELDS_VALID_V1_FILE_NAME = "all-fields-valid-v1.xml";
+    public static final String UNRECOGNIZED_V1_FILE_NAME = "unrecognized-v1.xml";
 
     /** Logic for setting up tests (empty if not yet needed). */
     public static void main(String[] params) throws Exception {}
@@ -63,6 +82,61 @@
         testOdToHrAppInfo(ALL_FIELDS_VALID_FILE_NAME);
     }
 
+    /** Test for all fields valid v1. */
+    @Test
+    public void testAllFieldsValidV1() throws Exception {
+        System.out.println("starting testAllFieldsValidV1.");
+        new AppInfoFactory()
+                .createFromOdElement(
+                        TestUtils.getElementFromResource(
+                                Paths.get(APP_INFO_OD_PATH, ALL_FIELDS_VALID_V1_FILE_NAME)),
+                        1L);
+    }
+
+    /** Test for unrecognized field v1. */
+    @Test
+    public void testUnrecognizedFieldV1() throws Exception {
+        System.out.println("starting testUnrecognizedFieldV1.");
+        assertThrows(
+                MalformedXmlException.class,
+                () ->
+                        new AppInfoFactory()
+                                .createFromOdElement(
+                                        TestUtils.getElementFromResource(
+                                                Paths.get(
+                                                        APP_INFO_OD_PATH,
+                                                        UNRECOGNIZED_V1_FILE_NAME)),
+                                        1L));
+    }
+
+    /** Tests missing required fields fails, V1. */
+    @Test
+    public void testMissingRequiredFieldsOdV1() throws Exception {
+        for (String reqField : REQUIRED_FIELD_NAMES_OD_V1) {
+            System.out.println("testing missing required field od v1: " + reqField);
+            var appInfoEle =
+                    TestUtils.getElementFromResource(
+                            Paths.get(APP_INFO_OD_PATH, ALL_FIELDS_VALID_V1_FILE_NAME));
+            TestUtils.removeOdChildEleWithName(appInfoEle, reqField);
+            assertThrows(
+                    MalformedXmlException.class,
+                    () -> new AppInfoFactory().createFromOdElement(appInfoEle, 1L));
+        }
+    }
+
+    /** Tests missing optional fields passes, V1. */
+    @Test
+    public void testMissingOptionalFieldsOdV1() throws Exception {
+        for (String optField : OPTIONAL_FIELD_NAMES_OD_V1) {
+            System.out.println("testing missing optional field od v1: " + optField);
+            var appInfoEle =
+                    TestUtils.getElementFromResource(
+                            Paths.get(APP_INFO_OD_PATH, ALL_FIELDS_VALID_V1_FILE_NAME));
+            TestUtils.removeOdChildEleWithName(appInfoEle, optField);
+            new AppInfoFactory().createFromOdElement(appInfoEle, 1L);
+        }
+    }
+
     /** Tests missing required fields fails. */
     @Test
     public void testMissingRequiredFields() throws Exception {
@@ -70,24 +144,24 @@
         for (String reqField : REQUIRED_FIELD_NAMES) {
             System.out.println("testing missing required field hr: " + reqField);
             var appInfoEle =
-                    TestUtils.getElementsFromResource(
+                    TestUtils.getElementFromResource(
                             Paths.get(APP_INFO_HR_PATH, ALL_FIELDS_VALID_FILE_NAME));
-            appInfoEle.get(0).removeAttribute(reqField);
+            appInfoEle.removeAttribute(reqField);
 
             assertThrows(
                     MalformedXmlException.class,
-                    () -> new AppInfoFactory().createFromHrElements(appInfoEle));
+                    () -> new AppInfoFactory().createFromHrElement(appInfoEle, DEFAULT_VERSION));
         }
 
         for (String reqField : REQUIRED_FIELD_NAMES_OD) {
             System.out.println("testing missing required field od: " + reqField);
             var appInfoEle =
-                    TestUtils.getElementsFromResource(
+                    TestUtils.getElementFromResource(
                             Paths.get(APP_INFO_OD_PATH, ALL_FIELDS_VALID_FILE_NAME));
-            TestUtils.removeOdChildEleWithName(appInfoEle.get(0), reqField);
+            TestUtils.removeOdChildEleWithName(appInfoEle, reqField);
             assertThrows(
                     MalformedXmlException.class,
-                    () -> new AppInfoFactory().createFromOdElements(appInfoEle));
+                    () -> new AppInfoFactory().createFromOdElement(appInfoEle, DEFAULT_VERSION));
         }
     }
 
@@ -98,24 +172,24 @@
         for (String reqChildName : REQUIRED_CHILD_NAMES) {
             System.out.println("testing missing required child hr: " + reqChildName);
             var appInfoEle =
-                    TestUtils.getElementsFromResource(
+                    TestUtils.getElementFromResource(
                             Paths.get(APP_INFO_HR_PATH, ALL_FIELDS_VALID_FILE_NAME));
-            var child = XmlUtils.getChildrenByTagName(appInfoEle.get(0), reqChildName).get(0);
-            appInfoEle.get(0).removeChild(child);
+            var child = XmlUtils.getChildrenByTagName(appInfoEle, reqChildName).get(0);
+            appInfoEle.removeChild(child);
             assertThrows(
                     MalformedXmlException.class,
-                    () -> new AppInfoFactory().createFromHrElements(appInfoEle));
+                    () -> new AppInfoFactory().createFromHrElement(appInfoEle, DEFAULT_VERSION));
         }
 
         for (String reqField : REQUIRED_CHILD_NAMES_OD) {
             System.out.println("testing missing required child od: " + reqField);
             var appInfoEle =
-                    TestUtils.getElementsFromResource(
+                    TestUtils.getElementFromResource(
                             Paths.get(APP_INFO_OD_PATH, ALL_FIELDS_VALID_FILE_NAME));
-            TestUtils.removeOdChildEleWithName(appInfoEle.get(0), reqField);
+            TestUtils.removeOdChildEleWithName(appInfoEle, reqField);
             assertThrows(
                     MalformedXmlException.class,
-                    () -> new AppInfoFactory().createFromOdElements(appInfoEle));
+                    () -> new AppInfoFactory().createFromOdElement(appInfoEle, DEFAULT_VERSION));
         }
     }
 
@@ -124,38 +198,51 @@
     public void testMissingOptionalFields() throws Exception {
         for (String optField : OPTIONAL_FIELD_NAMES) {
             var ele =
-                    TestUtils.getElementsFromResource(
+                    TestUtils.getElementFromResource(
                             Paths.get(APP_INFO_HR_PATH, ALL_FIELDS_VALID_FILE_NAME));
-            ele.get(0).removeAttribute(optField);
-            AppInfo appInfo = new AppInfoFactory().createFromHrElements(ele);
-            appInfo.toOdDomElements(TestUtils.document());
+            ele.removeAttribute(optField);
+            AppInfo appInfo = new AppInfoFactory().createFromHrElement(ele, DEFAULT_VERSION);
+            appInfo.toOdDomElement(TestUtils.document());
         }
 
         for (String optField : OPTIONAL_FIELD_NAMES_OD) {
             var ele =
-                    TestUtils.getElementsFromResource(
+                    TestUtils.getElementFromResource(
                             Paths.get(APP_INFO_OD_PATH, ALL_FIELDS_VALID_FILE_NAME));
-            TestUtils.removeOdChildEleWithName(ele.get(0), optField);
-            AppInfo appInfo = new AppInfoFactory().createFromOdElements(ele);
-            appInfo.toHrDomElements(TestUtils.document());
+            TestUtils.removeOdChildEleWithName(ele, optField);
+            AppInfo appInfo = new AppInfoFactory().createFromOdElement(ele, DEFAULT_VERSION);
+            appInfo.toHrDomElement(TestUtils.document());
         }
     }
 
     private void testHrToOdAppInfo(String fileName) throws Exception {
-        TestUtils.testHrToOd(
-                TestUtils.document(),
-                new AppInfoFactory(),
-                APP_INFO_HR_PATH,
-                APP_INFO_OD_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        AppInfo appInfo =
+                new AppInfoFactory()
+                        .createFromHrElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(APP_INFO_HR_PATH, fileName)),
+                                DEFAULT_VERSION);
+        Element appInfoEle = appInfo.toOdDomElement(doc);
+        doc.appendChild(appInfoEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(APP_INFO_OD_PATH, fileName));
     }
 
+
     private void testOdToHrAppInfo(String fileName) throws Exception {
-        TestUtils.testOdToHr(
-                TestUtils.document(),
-                new AppInfoFactory(),
-                APP_INFO_OD_PATH,
-                APP_INFO_HR_PATH,
-                fileName);
+        testOdToHrAppInfo(fileName, DEFAULT_VERSION);
+    }
+
+    private void testOdToHrAppInfo(String fileName, long version) throws Exception {
+        var doc = TestUtils.document();
+        AppInfo appInfo =
+                new AppInfoFactory()
+                        .createFromOdElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(APP_INFO_OD_PATH, fileName)),
+                                version);
+        Element appInfoEle = appInfo.toHrDomElement(doc);
+        doc.appendChild(appInfoEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(APP_INFO_HR_PATH, fileName));
     }
 }
diff --git a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/DataLabelsTest.java b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/DataLabelsTest.java
index ff43741..b557fea 100644
--- a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/DataLabelsTest.java
+++ b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/DataLabelsTest.java
@@ -16,15 +16,27 @@
 
 package com.android.asllib.marshallable;
 
+import static org.junit.Assert.assertThrows;
+
 import com.android.asllib.testutils.TestUtils;
+import com.android.asllib.util.MalformedXmlException;
 
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
+import org.w3c.dom.Element;
+import org.xml.sax.SAXException;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+
+import javax.xml.parsers.ParserConfigurationException;
 
 @RunWith(JUnit4.class)
 public class DataLabelsTest {
+    private static final long DEFAULT_VERSION = 2L;
+
     private static final String DATA_LABELS_HR_PATH = "com/android/asllib/datalabels/hr";
     private static final String DATA_LABELS_OD_PATH = "com/android/asllib/datalabels/od";
 
@@ -297,29 +309,43 @@
         odToHrExpectException(PERSONAL_EMPTY_PURPOSE_FILE_NAME);
     }
 
-    private void hrToOdExpectException(String fileName) {
-        TestUtils.hrToOdExpectException(new DataLabelsFactory(), DATA_LABELS_HR_PATH, fileName);
+    private void hrToOdExpectException(String fileName)
+            throws ParserConfigurationException, IOException, SAXException {
+        var ele = TestUtils.getElementFromResource(Paths.get(DATA_LABELS_HR_PATH, fileName));
+        assertThrows(
+                MalformedXmlException.class,
+                () -> new DataLabelsFactory().createFromHrElement(ele));
     }
 
-    private void odToHrExpectException(String fileName) {
-        TestUtils.odToHrExpectException(new DataLabelsFactory(), DATA_LABELS_OD_PATH, fileName);
+    private void odToHrExpectException(String fileName)
+            throws ParserConfigurationException, IOException, SAXException {
+        var ele = TestUtils.getElementFromResource(Paths.get(DATA_LABELS_OD_PATH, fileName));
+        assertThrows(
+                MalformedXmlException.class,
+                () -> new DataLabelsFactory().createFromOdElement(ele));
     }
 
     private void testHrToOdDataLabels(String fileName) throws Exception {
-        TestUtils.testHrToOd(
-                TestUtils.document(),
-                new DataLabelsFactory(),
-                DATA_LABELS_HR_PATH,
-                DATA_LABELS_OD_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        DataLabels dataLabels =
+                new DataLabelsFactory()
+                        .createFromHrElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(DATA_LABELS_HR_PATH, fileName)));
+        Element resultingEle = dataLabels.toOdDomElement(doc);
+        doc.appendChild(resultingEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(DATA_LABELS_OD_PATH, fileName));
     }
 
     private void testOdToHrDataLabels(String fileName) throws Exception {
-        TestUtils.testOdToHr(
-                TestUtils.document(),
-                new DataLabelsFactory(),
-                DATA_LABELS_OD_PATH,
-                DATA_LABELS_HR_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        DataLabels dataLabels =
+                new DataLabelsFactory()
+                        .createFromOdElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(DATA_LABELS_OD_PATH, fileName)));
+        Element resultingEle = dataLabels.toHrDomElement(doc);
+        doc.appendChild(resultingEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(DATA_LABELS_HR_PATH, fileName));
     }
 }
diff --git a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/SafetyLabelsTest.java b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/SafetyLabelsTest.java
index 19d1626..7cd510f 100644
--- a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/SafetyLabelsTest.java
+++ b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/SafetyLabelsTest.java
@@ -16,15 +16,27 @@
 
 package com.android.asllib.marshallable;
 
+import static org.junit.Assert.assertThrows;
+
 import com.android.asllib.testutils.TestUtils;
+import com.android.asllib.util.MalformedXmlException;
 
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
+import org.w3c.dom.Element;
+import org.xml.sax.SAXException;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+
+import javax.xml.parsers.ParserConfigurationException;
 
 @RunWith(JUnit4.class)
 public class SafetyLabelsTest {
+    private static final long DEFAULT_VERSION = 2L;
+
     private static final String SAFETY_LABELS_HR_PATH = "com/android/asllib/safetylabels/hr";
     private static final String SAFETY_LABELS_OD_PATH = "com/android/asllib/safetylabels/od";
 
@@ -52,29 +64,51 @@
         testOdToHrSafetyLabels(WITH_DATA_LABELS_FILE_NAME);
     }
 
-    private void hrToOdExpectException(String fileName) {
-        TestUtils.hrToOdExpectException(new SafetyLabelsFactory(), SAFETY_LABELS_HR_PATH, fileName);
+    private void hrToOdExpectException(String fileName)
+            throws ParserConfigurationException, IOException, SAXException {
+        var safetyLabelsEle =
+                TestUtils.getElementFromResource(Paths.get(SAFETY_LABELS_HR_PATH, fileName));
+        assertThrows(
+                MalformedXmlException.class,
+                () ->
+                        new SafetyLabelsFactory()
+                                .createFromHrElement(safetyLabelsEle, DEFAULT_VERSION));
     }
 
-    private void odToHrExpectException(String fileName) {
-        TestUtils.odToHrExpectException(new SafetyLabelsFactory(), SAFETY_LABELS_OD_PATH, fileName);
+    private void odToHrExpectException(String fileName)
+            throws ParserConfigurationException, IOException, SAXException {
+        var safetyLabelsEle =
+                TestUtils.getElementFromResource(Paths.get(SAFETY_LABELS_OD_PATH, fileName));
+        assertThrows(
+                MalformedXmlException.class,
+                () ->
+                        new SafetyLabelsFactory()
+                                .createFromOdElement(safetyLabelsEle, DEFAULT_VERSION));
     }
 
     private void testHrToOdSafetyLabels(String fileName) throws Exception {
-        TestUtils.testHrToOd(
-                TestUtils.document(),
-                new SafetyLabelsFactory(),
-                SAFETY_LABELS_HR_PATH,
-                SAFETY_LABELS_OD_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        SafetyLabels safetyLabels =
+                new SafetyLabelsFactory()
+                        .createFromHrElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(SAFETY_LABELS_HR_PATH, fileName)),
+                                DEFAULT_VERSION);
+        Element appInfoEle = safetyLabels.toOdDomElement(doc);
+        doc.appendChild(appInfoEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(SAFETY_LABELS_OD_PATH, fileName));
     }
 
     private void testOdToHrSafetyLabels(String fileName) throws Exception {
-        TestUtils.testOdToHr(
-                TestUtils.document(),
-                new SafetyLabelsFactory(),
-                SAFETY_LABELS_OD_PATH,
-                SAFETY_LABELS_HR_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        SafetyLabels safetyLabels =
+                new SafetyLabelsFactory()
+                        .createFromOdElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(SAFETY_LABELS_OD_PATH, fileName)),
+                                DEFAULT_VERSION);
+        Element appInfoEle = safetyLabels.toHrDomElement(doc);
+        doc.appendChild(appInfoEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(SAFETY_LABELS_HR_PATH, fileName));
     }
 }
diff --git a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/SystemAppSafetyLabelTest.java b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/SystemAppSafetyLabelTest.java
index 87d3e44..9dcc652 100644
--- a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/SystemAppSafetyLabelTest.java
+++ b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/SystemAppSafetyLabelTest.java
@@ -16,15 +16,27 @@
 
 package com.android.asllib.marshallable;
 
+import static org.junit.Assert.assertThrows;
+
 import com.android.asllib.testutils.TestUtils;
+import com.android.asllib.util.MalformedXmlException;
 
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
+import org.w3c.dom.Element;
+import org.xml.sax.SAXException;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+
+import javax.xml.parsers.ParserConfigurationException;
 
 @RunWith(JUnit4.class)
 public class SystemAppSafetyLabelTest {
+    private static final long DEFAULT_VERSION = 2L;
+
     private static final String SYSTEM_APP_SAFETY_LABEL_HR_PATH =
             "com/android/asllib/systemappsafetylabel/hr";
     private static final String SYSTEM_APP_SAFETY_LABEL_OD_PATH =
@@ -57,31 +69,49 @@
         odToHrExpectException(MISSING_BOOL_FILE_NAME);
     }
 
-    private void hrToOdExpectException(String fileName) {
-        TestUtils.hrToOdExpectException(
-                new SystemAppSafetyLabelFactory(), SYSTEM_APP_SAFETY_LABEL_HR_PATH, fileName);
+    private void hrToOdExpectException(String fileName)
+            throws ParserConfigurationException, IOException, SAXException {
+        var ele =
+                TestUtils.getElementFromResource(
+                        Paths.get(SYSTEM_APP_SAFETY_LABEL_HR_PATH, fileName));
+        assertThrows(
+                MalformedXmlException.class,
+                () -> new SystemAppSafetyLabelFactory().createFromHrElement(ele, DEFAULT_VERSION));
     }
 
-    private void odToHrExpectException(String fileName) {
-        TestUtils.odToHrExpectException(
-                new SystemAppSafetyLabelFactory(), SYSTEM_APP_SAFETY_LABEL_OD_PATH, fileName);
+    private void odToHrExpectException(String fileName)
+            throws ParserConfigurationException, IOException, SAXException {
+        var ele =
+                TestUtils.getElementFromResource(
+                        Paths.get(SYSTEM_APP_SAFETY_LABEL_OD_PATH, fileName));
+        assertThrows(
+                MalformedXmlException.class,
+                () -> new SystemAppSafetyLabelFactory().createFromOdElement(ele, DEFAULT_VERSION));
     }
 
     private void testHrToOdSystemAppSafetyLabel(String fileName) throws Exception {
-        TestUtils.testHrToOd(
-                TestUtils.document(),
-                new SystemAppSafetyLabelFactory(),
-                SYSTEM_APP_SAFETY_LABEL_HR_PATH,
-                SYSTEM_APP_SAFETY_LABEL_OD_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        SystemAppSafetyLabel systemAppSafetyLabel =
+                new SystemAppSafetyLabelFactory()
+                        .createFromHrElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(SYSTEM_APP_SAFETY_LABEL_HR_PATH, fileName)),
+                                DEFAULT_VERSION);
+        Element resultingEle = systemAppSafetyLabel.toOdDomElement(doc);
+        doc.appendChild(resultingEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(SYSTEM_APP_SAFETY_LABEL_OD_PATH, fileName));
     }
 
     private void testOdToHrSystemAppSafetyLabel(String fileName) throws Exception {
-        TestUtils.testOdToHr(
-                TestUtils.document(),
-                new SystemAppSafetyLabelFactory(),
-                SYSTEM_APP_SAFETY_LABEL_OD_PATH,
-                SYSTEM_APP_SAFETY_LABEL_HR_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        SystemAppSafetyLabel systemAppSafetyLabel =
+                new SystemAppSafetyLabelFactory()
+                        .createFromOdElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(SYSTEM_APP_SAFETY_LABEL_OD_PATH, fileName)),
+                                DEFAULT_VERSION);
+        Element resultingEle = systemAppSafetyLabel.toHrDomElement(doc);
+        doc.appendChild(resultingEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(SYSTEM_APP_SAFETY_LABEL_HR_PATH, fileName));
     }
 }
diff --git a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/TransparencyInfoTest.java b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/TransparencyInfoTest.java
index 8a0b35e..6547fb9 100644
--- a/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/TransparencyInfoTest.java
+++ b/tools/app_metadata_bundles/src/test/java/com/android/asllib/marshallable/TransparencyInfoTest.java
@@ -22,9 +22,14 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
+import org.w3c.dom.Element;
+
+import java.nio.file.Paths;
 
 @RunWith(JUnit4.class)
 public class TransparencyInfoTest {
+    private static final long DEFAULT_VERSION = 2L;
+
     private static final String TRANSPARENCY_INFO_HR_PATH =
             "com/android/asllib/transparencyinfo/hr";
     private static final String TRANSPARENCY_INFO_OD_PATH =
@@ -45,20 +50,28 @@
     }
 
     private void testHrToOdTransparencyInfo(String fileName) throws Exception {
-        TestUtils.testHrToOd(
-                TestUtils.document(),
-                new TransparencyInfoFactory(),
-                TRANSPARENCY_INFO_HR_PATH,
-                TRANSPARENCY_INFO_OD_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        TransparencyInfo transparencyInfo =
+                new TransparencyInfoFactory()
+                        .createFromHrElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(TRANSPARENCY_INFO_HR_PATH, fileName)),
+                                DEFAULT_VERSION);
+        Element resultingEle = transparencyInfo.toOdDomElement(doc);
+        doc.appendChild(resultingEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(TRANSPARENCY_INFO_OD_PATH, fileName));
     }
 
     private void testOdToHrTransparencyInfo(String fileName) throws Exception {
-        TestUtils.testOdToHr(
-                TestUtils.document(),
-                new TransparencyInfoFactory(),
-                TRANSPARENCY_INFO_OD_PATH,
-                TRANSPARENCY_INFO_HR_PATH,
-                fileName);
+        var doc = TestUtils.document();
+        TransparencyInfo transparencyInfo =
+                new TransparencyInfoFactory()
+                        .createFromOdElement(
+                                TestUtils.getElementFromResource(
+                                        Paths.get(TRANSPARENCY_INFO_OD_PATH, fileName)),
+                                DEFAULT_VERSION);
+        Element resultingEle = transparencyInfo.toHrDomElement(doc);
+        doc.appendChild(resultingEle);
+        TestUtils.testFormatToFormat(doc, Paths.get(TRANSPARENCY_INFO_HR_PATH, fileName));
     }
 }
diff --git a/tools/app_metadata_bundles/src/test/java/com/android/asllib/testutils/TestUtils.java b/tools/app_metadata_bundles/src/test/java/com/android/asllib/testutils/TestUtils.java
index ea90993..f8ef40a 100644
--- a/tools/app_metadata_bundles/src/test/java/com/android/asllib/testutils/TestUtils.java
+++ b/tools/app_metadata_bundles/src/test/java/com/android/asllib/testutils/TestUtils.java
@@ -17,11 +17,8 @@
 package com.android.asllib.testutils;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertThrows;
 
 import com.android.asllib.marshallable.AslMarshallable;
-import com.android.asllib.marshallable.AslMarshallableFactory;
-import com.android.asllib.util.MalformedXmlException;
 import com.android.asllib.util.XmlUtils;
 
 import org.w3c.dom.Document;
@@ -36,7 +33,6 @@
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.util.List;
 import java.util.Optional;
 
@@ -60,7 +56,19 @@
     }
 
     /** Gets List of Element from a path to an existing Resource. */
-    public static List<Element> getElementsFromResource(Path filePath)
+    public static Element getElementFromResource(Path filePath)
+            throws ParserConfigurationException, IOException, SAXException {
+        String str = readStrFromResource(filePath);
+        InputStream stream = new ByteArrayInputStream(str.getBytes(StandardCharsets.UTF_8));
+
+        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+        factory.setNamespaceAware(true);
+        Document document = factory.newDocumentBuilder().parse(stream);
+        return document.getDocumentElement();
+    }
+
+    /** Gets List of Element from a path to an existing Resource. */
+    public static List<Element> getChildElementsFromResource(Path filePath)
             throws ParserConfigurationException, IOException, SAXException {
         String str = readStrFromResource(filePath);
         InputStream stream = new ByteArrayInputStream(str.getBytes(StandardCharsets.UTF_8));
@@ -69,16 +77,13 @@
         factory.setNamespaceAware(true);
         Document document = factory.newDocumentBuilder().parse(stream);
         Element root = document.getDocumentElement();
-        if (root.getTagName().equals(HOLDER_TAG_NAME)) {
-            String tagName =
-                    XmlUtils.asElementList(root.getChildNodes()).stream()
-                            .findFirst()
-                            .get()
-                            .getTagName();
-            return XmlUtils.getChildrenByTagName(root, tagName);
-        } else {
-            return List.of(root);
-        }
+
+        String tagName =
+                XmlUtils.asElementList(root.getChildNodes()).stream()
+                        .findFirst()
+                        .get()
+                        .getTagName();
+        return XmlUtils.getChildrenByTagName(root, tagName);
     }
 
     /** Reads a Document into a String. */
@@ -130,86 +135,13 @@
         return DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
     }
 
-    /** Helper for testing human-readable to on-device conversion expecting exception */
-    public static <T extends AslMarshallable> void hrToOdExpectException(
-            AslMarshallableFactory<T> factory, String hrFolderPath, String fileName) {
-        assertThrows(
-                MalformedXmlException.class,
-                () -> {
-                    factory.createFromHrElements(
-                            TestUtils.getElementsFromResource(Paths.get(hrFolderPath, fileName)));
-                });
-    }
-
-    /** Helper for testing on-device to human-readable conversion expecting exception */
-    public static <T extends AslMarshallable> void odToHrExpectException(
-            AslMarshallableFactory<T> factory, String odFolderPath, String fileName) {
-        assertThrows(
-                MalformedXmlException.class,
-                () -> {
-                    factory.createFromOdElements(
-                            TestUtils.getElementsFromResource(Paths.get(odFolderPath, fileName)));
-                });
-    }
-
-    /** Helper for testing human-readable to on-device conversion */
-    public static <T extends AslMarshallable> void testHrToOd(
-            Document doc,
-            AslMarshallableFactory<T> factory,
-            String hrFolderPath,
-            String odFolderPath,
-            String fileName)
-            throws Exception {
-        testFormatToFormat(doc, factory, hrFolderPath, odFolderPath, fileName, true);
-    }
-
-    /** Helper for testing on-device to human-readable conversion */
-    public static <T extends AslMarshallable> void testOdToHr(
-            Document doc,
-            AslMarshallableFactory<T> factory,
-            String odFolderPath,
-            String hrFolderPath,
-            String fileName)
-            throws Exception {
-        testFormatToFormat(doc, factory, odFolderPath, hrFolderPath, fileName, false);
-    }
-
     /** Helper for testing format to format conversion */
-    private static <T extends AslMarshallable> void testFormatToFormat(
-            Document doc,
-            AslMarshallableFactory<T> factory,
-            String inFolderPath,
-            String outFolderPath,
-            String fileName,
-            boolean hrToOd)
-            throws Exception {
-        AslMarshallable marshallable =
-                hrToOd
-                        ? factory.createFromHrElements(
-                                TestUtils.getElementsFromResource(
-                                        Paths.get(inFolderPath, fileName)))
-                        : factory.createFromOdElements(
-                                TestUtils.getElementsFromResource(
-                                        Paths.get(inFolderPath, fileName)));
-
-        List<Element> elements =
-                hrToOd ? marshallable.toOdDomElements(doc) : marshallable.toHrDomElements(doc);
-        if (elements.isEmpty()) {
-            throw new IllegalStateException("elements was empty.");
-        } else if (elements.size() == 1) {
-            doc.appendChild(elements.get(0));
-        } else {
-            Element root = doc.createElement(TestUtils.HOLDER_TAG_NAME);
-            for (var child : elements) {
-                root.appendChild(child);
-            }
-            doc.appendChild(root);
-        }
+    public static <T extends AslMarshallable> void testFormatToFormat(
+            Document doc, Path expectedOutPath) throws Exception {
         String converted = TestUtils.getFormattedXml(TestUtils.docToStr(doc, true), true);
         System.out.println("Converted: " + converted);
         String expectedOutContents =
-                TestUtils.getFormattedXml(
-                        TestUtils.readStrFromResource(Paths.get(outFolderPath, fileName)), true);
+                TestUtils.getFormattedXml(TestUtils.readStrFromResource(expectedOutPath), true);
         System.out.println("Expected: " + expectedOutContents);
         assertEquals(expectedOutContents, converted);
     }
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/missing-version.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/missing-version.xml
index ec0cd70..7478e39 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/missing-version.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/missing-version.xml
@@ -1,3 +1,17 @@
 <app-metadata-bundles>
-
+    <system-app-safety-label declaration="true">
+    </system-app-safety-label>
+    <transparency-info>
+        <app-info
+            apsCompliant="false"
+            privacyPolicy="www.example.com" developerId="dev1" applicationId="app1">
+            <first-party-endpoints>
+                <item>url1</item>
+            </first-party-endpoints>
+            <service-provider-endpoints>
+                <item>url55</item>
+                <item>url56</item>
+            </service-provider-endpoints>
+        </app-info>
+    </transparency-info>
 </app-metadata-bundles>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/valid-empty.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/valid-empty.xml
index 19bfd82..587c49a 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/valid-empty.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/valid-empty.xml
@@ -1 +1,17 @@
-<app-metadata-bundles version="123456"></app-metadata-bundles>
\ No newline at end of file
+<app-metadata-bundles version="2">
+    <system-app-safety-label declaration="true">
+    </system-app-safety-label>
+    <transparency-info>
+        <app-info
+            apsCompliant="false"
+            privacyPolicy="www.example.com" developerId="dev1" applicationId="app1">
+            <first-party-endpoints>
+                <item>url1</item>
+            </first-party-endpoints>
+            <service-provider-endpoints>
+                <item>url55</item>
+                <item>url56</item>
+            </service-provider-endpoints>
+        </app-info>
+    </transparency-info>
+</app-metadata-bundles>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-safety-labels.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-safety-labels.xml
index 03e71d2..9cfb8bc 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-safety-labels.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-safety-labels.xml
@@ -1,4 +1,19 @@
-<app-metadata-bundles version="123456">
+<app-metadata-bundles version="2">
     <safety-labels>
     </safety-labels>
+    <system-app-safety-label declaration="true">
+    </system-app-safety-label>
+    <transparency-info>
+        <app-info
+            apsCompliant="false"
+            privacyPolicy="www.example.com" developerId="dev1" applicationId="app1">
+            <first-party-endpoints>
+                <item>url1</item>
+            </first-party-endpoints>
+            <service-provider-endpoints>
+                <item>url55</item>
+                <item>url56</item>
+            </service-provider-endpoints>
+        </app-info>
+    </transparency-info>
 </app-metadata-bundles>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-system-app-safety-label.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-system-app-safety-label.xml
deleted file mode 100644
index afb0486..0000000
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-system-app-safety-label.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<app-metadata-bundles version="123456">
-<system-app-safety-label declaration="true">
-</system-app-safety-label>
-</app-metadata-bundles>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-transparency-info.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-transparency-info.xml
deleted file mode 100644
index a00ef65..0000000
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/hr/with-transparency-info.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<app-metadata-bundles version="123456">
-    <transparency-info>
-        <app-info
-            apsCompliant="false"
-            privacyPolicy="www.example.com">
-            <first-party-endpoints>
-                <item>url1</item>
-            </first-party-endpoints>
-            <service-provider-endpoints>
-                <item>url55</item>
-                <item>url56</item>
-            </service-provider-endpoints>
-        </app-info>
-    </transparency-info>
-</app-metadata-bundles>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/missing-version.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/missing-version.xml
index 1aa3aa9..9adfa98 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/missing-version.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/missing-version.xml
@@ -1,2 +1,20 @@
 <bundle>
+    <pbundle_as_map name="system_app_safety_label">
+        <boolean name="declaration" value="true"/>
+    </pbundle_as_map>
+    <pbundle_as_map name="transparency_info">
+        <pbundle_as_map name="app_info">
+            <boolean name="aps_compliant" value="false"/>
+            <string name="privacy_policy" value="www.example.com"/>
+            <string-array name="first_party_endpoints" num="1">
+                <item value="url1"/>
+            </string-array>
+            <string-array name="service_provider_endpoints" num="2">
+                <item value="url55"/>
+                <item value="url56"/>
+            </string-array>
+            <string name="developer_id" value="dev1"/>
+            <string name="application_id" value="app1"/>
+        </pbundle_as_map>
+    </pbundle_as_map>
 </bundle>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/valid-empty.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/valid-empty.xml
index 37bdfad..7a4c82a 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/valid-empty.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/valid-empty.xml
@@ -1,3 +1,21 @@
 <bundle>
-    <long name="version" value="123456"/>
+    <long name="version" value="2"/>
+    <pbundle_as_map name="system_app_safety_label">
+        <boolean name="declaration" value="true"/>
+    </pbundle_as_map>
+    <pbundle_as_map name="transparency_info">
+        <pbundle_as_map name="app_info">
+            <string name="privacy_policy" value="www.example.com"/>
+            <string-array name="first_party_endpoints" num="1">
+                <item value="url1"/>
+            </string-array>
+            <string-array name="service_provider_endpoints" num="2">
+                <item value="url55"/>
+                <item value="url56"/>
+            </string-array>
+            <boolean name="aps_compliant" value="false"/>
+            <string name="developer_id" value="dev1"/>
+            <string name="application_id" value="app1"/>
+        </pbundle_as_map>
+    </pbundle_as_map>
 </bundle>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-safety-labels.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-safety-labels.xml
index f00fb26..3a3e5d3 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-safety-labels.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-safety-labels.xml
@@ -1,5 +1,22 @@
 <bundle>
-    <long name="version" value="123456"/>
-    <pbundle_as_map name="safety_labels">
+    <long name="version" value="2"/>
+    <pbundle_as_map name="safety_labels"/>
+    <pbundle_as_map name="system_app_safety_label">
+        <boolean name="declaration" value="true"/>
     </pbundle_as_map>
-</bundle>
+    <pbundle_as_map name="transparency_info">
+        <pbundle_as_map name="app_info">
+            <string name="privacy_policy" value="www.example.com"/>
+            <string-array name="first_party_endpoints" num="1">
+                <item value="url1"/>
+            </string-array>
+            <string-array name="service_provider_endpoints" num="2">
+                <item value="url55"/>
+                <item value="url56"/>
+            </string-array>
+            <boolean name="aps_compliant" value="false"/>
+            <string name="developer_id" value="dev1"/>
+            <string name="application_id" value="app1"/>
+        </pbundle_as_map>
+    </pbundle_as_map>
+</bundle>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-system-app-safety-label.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-system-app-safety-label.xml
deleted file mode 100644
index e8640c4..0000000
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-system-app-safety-label.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<bundle>
-    <long name="version" value="123456"/>
-    <pbundle_as_map name="system_app_safety_label">
-        <boolean name="declaration" value="true"/>
-    </pbundle_as_map>
-</bundle>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-transparency-info.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-transparency-info.xml
deleted file mode 100644
index d0c8668..0000000
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/androidsafetylabel/od/with-transparency-info.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<bundle>
-    <long name="version" value="123456"/>
-    <pbundle_as_map name="transparency_info">
-        <pbundle_as_map name="app_info">
-            <boolean name="aps_compliant" value="false"/>
-            <string name="privacy_policy" value="www.example.com"/>
-            <string-array name="first_party_endpoints" num="1">
-                <item value="url1"/>
-            </string-array>
-            <string-array name="service_provider_endpoints" num="2">
-                <item value="url55"/>
-                <item value="url56"/>
-            </string-array>
-        </pbundle_as_map>
-    </pbundle_as_map>
-</bundle>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/hr/all-fields-valid.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/hr/all-fields-valid.xml
index 0d15efc..306e015 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/hr/all-fields-valid.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/hr/all-fields-valid.xml
@@ -1,6 +1,6 @@
 <app-info
     apsCompliant="false"
-    privacyPolicy="www.example.com">
+    privacyPolicy="www.example.com" developerId="dev1" applicationId="app1">
     <first-party-endpoints>
         <item>url1</item>
     </first-party-endpoints>
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/all-fields-valid-v1.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/all-fields-valid-v1.xml
new file mode 100644
index 0000000..b026cf3
--- /dev/null
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/all-fields-valid-v1.xml
@@ -0,0 +1,24 @@
+<pbundle_as_map name="app_info">
+    <string name="title" value="beervision"/>
+    <string name="description" value="a beer app"/>
+    <boolean name="contains_ads" value="true"/>
+    <boolean name="obey_aps" value="false"/>
+    <boolean name="ads_fingerprinting" value="false"/>
+    <boolean name="security_fingerprinting" value="false"/>
+    <string name="privacy_policy" value="www.example.com"/>
+    <string-array name="security_endpoints" num="3">
+        <item value="url1"/>
+        <item value="url2"/>
+        <item value="url3"/>
+    </string-array>
+    <string-array name="first_party_endpoints" num="1">
+        <item value="url1"/>
+    </string-array>
+    <string-array name="service_provider_endpoints" num="2">
+        <item value="url55"/>
+        <item value="url56"/>
+    </string-array>
+    <string name="category" value="Food and drink"/>
+    <string name="email" value="max@maxloh.com"/>
+    <string name="website" value="www.example.com"/>
+</pbundle_as_map>
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/all-fields-valid.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/all-fields-valid.xml
index bce5179..7aae4a7 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/all-fields-valid.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/all-fields-valid.xml
@@ -1,6 +1,5 @@
 
 <pbundle_as_map name="app_info">
-    <boolean name="aps_compliant" value="false"/>
     <string name="privacy_policy" value="www.example.com"/>
     <string-array name="first_party_endpoints" num="1">
         <item value="url1"/>
@@ -9,4 +8,7 @@
         <item value="url55"/>
         <item value="url56"/>
     </string-array>
+    <boolean name="aps_compliant" value="false"/>
+    <string name="developer_id" value="dev1"/>
+    <string name="application_id" value="app1"/>
 </pbundle_as_map>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/unrecognized-v1.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/unrecognized-v1.xml
new file mode 100644
index 0000000..810078e
--- /dev/null
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/appinfo/od/unrecognized-v1.xml
@@ -0,0 +1,25 @@
+<pbundle_as_map name="app_info">
+    <string name="title" value="beervision"/>
+    <string name="description" value="a beer app"/>
+    <boolean name="contains_ads" value="true"/>
+    <boolean name="obey_aps" value="false"/>
+    <boolean name="ads_fingerprinting" value="false"/>
+    <boolean name="security_fingerprinting" value="false"/>
+    <string name="privacy_policy" value="www.example.com"/>
+    <string-array name="security_endpoints" num="3">
+        <item value="url1"/>
+        <item value="url2"/>
+        <item value="url3"/>
+    </string-array>
+    <string-array name="first_party_endpoints" num="1">
+        <item value="url1"/>
+    </string-array>
+    <string-array name="service_provider_endpoints" num="2">
+        <item value="url55"/>
+        <item value="url56"/>
+    </string-array>
+    <string name="category" value="Food and drink"/>
+    <string name="email" value="max@maxloh.com"/>
+    <string name="website" value="www.example.com"/>
+    <string name="unrecognized" value="www.example.com"/>
+</pbundle_as_map>
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/hr/with-app-info.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/hr/with-app-info.xml
index 2512ca4..2c5cf86 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/hr/with-app-info.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/hr/with-app-info.xml
@@ -2,7 +2,7 @@
 <transparency-info>
     <app-info
         apsCompliant="false"
-        privacyPolicy="www.example.com">
+        privacyPolicy="www.example.com" developerId="dev1" applicationId="app1">
         <first-party-endpoints>
             <item>url1</item>
         </first-party-endpoints>
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/hr/with-developer-info.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/hr/with-developer-info.xml
index d16caae..29c88d2 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/hr/with-developer-info.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/hr/with-developer-info.xml
@@ -1,5 +1,16 @@
 
 <transparency-info>
+    <app-info
+        apsCompliant="false"
+        privacyPolicy="www.example.com" developerId="dev1" applicationId="app1">
+        <first-party-endpoints>
+            <item>url1</item>
+        </first-party-endpoints>
+        <service-provider-endpoints>
+            <item>url55</item>
+            <item>url56</item>
+        </service-provider-endpoints>
+    </app-info>
     <developer-info
         name="max"
         email="max@example.com"
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/od/with-app-info.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/od/with-app-info.xml
index c7bdd97..c46cec1 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/od/with-app-info.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/od/with-app-info.xml
@@ -1,7 +1,6 @@
 
 <pbundle_as_map name="transparency_info">
     <pbundle_as_map name="app_info">
-        <boolean name="aps_compliant" value="false"/>
         <string name="privacy_policy" value="www.example.com"/>
         <string-array name="first_party_endpoints" num="1">
             <item value="url1"/>
@@ -10,5 +9,8 @@
             <item value="url55"/>
             <item value="url56"/>
         </string-array>
+        <boolean name="aps_compliant" value="false"/>
+        <string name="developer_id" value="dev1"/>
+        <string name="application_id" value="app1"/>
     </pbundle_as_map>
 </pbundle_as_map>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/od/with-developer-info.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/od/with-developer-info.xml
index d7a4e1a..b5e64b9 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/od/with-developer-info.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/transparencyinfo/od/with-developer-info.xml
@@ -1,5 +1,18 @@
 
 <pbundle_as_map name="transparency_info">
+    <pbundle_as_map name="app_info">
+        <string name="privacy_policy" value="www.example.com"/>
+        <string-array name="first_party_endpoints" num="1">
+            <item value="url1"/>
+        </string-array>
+        <string-array name="service_provider_endpoints" num="2">
+            <item value="url55"/>
+            <item value="url56"/>
+        </string-array>
+        <boolean name="aps_compliant" value="false"/>
+        <string name="developer_id" value="dev1"/>
+        <string name="application_id" value="app1"/>
+    </pbundle_as_map>
     <pbundle_as_map name="developer_info">
         <string name="name" value="max"/>
         <string name="email" value="max@example.com"/>
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general-v1/od.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general-v1/od.xml
new file mode 100644
index 0000000..e8b0c17
--- /dev/null
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general-v1/od.xml
@@ -0,0 +1,70 @@
+<bundle>
+    <long name="version" value="1"/>
+    <pbundle_as_map name="safety_labels">
+        <pbundle_as_map name="data_labels">
+            <pbundle_as_map name="data_shared">
+                <pbundle_as_map name="location">
+                    <pbundle_as_map name="approx_location">
+                        <int-array name="purposes" num="1">
+                            <item value="1"/>
+                        </int-array>
+                        <boolean name="is_sharing_optional" value="false"/>
+                        <boolean name="ephemeral" value="false"/>
+                    </pbundle_as_map>
+                    <pbundle_as_map name="precise_location">
+                        <int-array name="purposes" num="2">
+                            <item value="1"/>
+                            <item value="2"/>
+                        </int-array>
+                        <boolean name="is_sharing_optional" value="true"/>
+                        <boolean name="ephemeral" value="true"/>
+                    </pbundle_as_map>
+                </pbundle_as_map>
+            </pbundle_as_map>
+        </pbundle_as_map>
+        <pbundle_as_map name="security_labels">
+            <boolean name="is_data_deletable" value="true"/>
+            <boolean name="is_data_encrypted" value="false"/>
+        </pbundle_as_map>
+        <pbundle_as_map name="third_party_verification">
+            <string name="url" value="www.example.com"/>
+        </pbundle_as_map>
+    </pbundle_as_map>
+    <pbundle_as_map name="system_app_safety_label">
+        <string name="url" value="www.example.com"/>
+    </pbundle_as_map>
+    <pbundle_as_map name="transparency_info">
+        <pbundle_as_map name="developer_info">
+            <string name="name" value="max"/>
+            <string name="email" value="max@example.com"/>
+            <string name="address" value="111 blah lane"/>
+            <string name="country_region" value="US"/>
+            <long name="relationship" value="5"/>
+            <string name="website" value="example.com"/>
+            <string name="app_developer_registry_id" value="registry_id"/>
+        </pbundle_as_map>
+        <pbundle_as_map name="app_info">
+            <string name="title" value="beervision"/>
+            <string name="description" value="a beer app"/>
+            <boolean name="contains_ads" value="true"/>
+            <boolean name="obey_aps" value="false"/>
+            <boolean name="ads_fingerprinting" value="false"/>
+            <boolean name="security_fingerprinting" value="false"/>
+            <string name="privacy_policy" value="www.example.com"/>
+            <string-array name="security_endpoints" num="3">
+                <item value="url1"/>
+                <item value="url2"/>
+                <item value="url3"/>
+            </string-array>
+            <string-array name="first_party_endpoints" num="1">
+                <item value="url1"/>
+            </string-array>
+            <string-array name="service_provider_endpoints" num="2">
+                <item value="url55"/>
+                <item value="url56"/>
+            </string-array>
+            <string name="category" value="Food and drink"/>
+            <string name="email" value="max@maxloh.com"/>
+        </pbundle_as_map>
+    </pbundle_as_map>
+</bundle>
\ No newline at end of file
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general/hr.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general/hr.xml
index 5923079..f932982 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general/hr.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general/hr.xml
@@ -1,20 +1,13 @@
-<app-metadata-bundles version="123">
+<app-metadata-bundles version="2">
     <safety-labels>
         <data-labels>
-            <data-shared
-                dataType="location_data_type_approx_location"
-                isSharingOptional="false"
-                purposes="app_functionality" />
-            <data-shared
-                dataType="location_data_type_precise_location"
-                isSharingOptional="true"
-                purposes="app_functionality|analytics" />
+            <data-shared dataType="location_data_type_approx_location" isSharingOptional="false" purposes="app_functionality"/>
+            <data-shared dataType="location_data_type_precise_location" isSharingOptional="true" purposes="app_functionality|analytics"/>
         </data-labels>
     </safety-labels>
-    <system-app-safety-label declaration="true">
-    </system-app-safety-label>
+    <system-app-safety-label declaration="true"/>
     <transparency-info>
-        <app-info apsCompliant="false" privacyPolicy="www.example.com">
+        <app-info applicationId="app1" apsCompliant="false" developerId="dev1" privacyPolicy="www.example.com">
             <first-party-endpoints>
                 <item>url1</item>
             </first-party-endpoints>
diff --git a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general/od.xml b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general/od.xml
index c24087e..c7def72 100644
--- a/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general/od.xml
+++ b/tools/app_metadata_bundles/src/test/resources/com/android/asllib/validmappings/general/od.xml
@@ -1,5 +1,5 @@
 <bundle>
-    <long name="version" value="123"/>
+    <long name="version" value="2"/>
     <pbundle_as_map name="safety_labels">
         <pbundle_as_map name="data_labels">
             <pbundle_as_map name="data_shared">
@@ -26,7 +26,6 @@
     </pbundle_as_map>
     <pbundle_as_map name="transparency_info">
         <pbundle_as_map name="app_info">
-            <boolean name="aps_compliant" value="false"/>
             <string name="privacy_policy" value="www.example.com"/>
             <string-array name="first_party_endpoints" num="1">
                 <item value="url1"/>
@@ -35,6 +34,9 @@
                 <item value="url55"/>
                 <item value="url56"/>
             </string-array>
+            <boolean name="aps_compliant" value="false"/>
+            <string name="developer_id" value="dev1"/>
+            <string name="application_id" value="app1"/>
         </pbundle_as_map>
     </pbundle_as_map>
 </bundle>
\ No newline at end of file