diff --git a/radio/aidl/Android.bp b/radio/aidl/Android.bp
index 01d70cd..613f31b 100644
--- a/radio/aidl/Android.bp
+++ b/radio/aidl/Android.bp
@@ -36,7 +36,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/config/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V2"],
+    imports: ["android.hardware.radio-V1"],
     backend: {
         cpp: {
             enabled: true,
@@ -48,7 +48,7 @@
     versions_with_info: [
         {
             version: "1",
-            imports: ["android.hardware.radio-V2"],
+            imports: ["android.hardware.radio-V1"],
         },
     ],
 
@@ -60,7 +60,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/data/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V2"],
+    imports: ["android.hardware.radio-V1"],
     backend: {
         cpp: {
             enabled: true,
@@ -72,7 +72,7 @@
     versions_with_info: [
         {
             version: "1",
-            imports: ["android.hardware.radio-V2"],
+            imports: ["android.hardware.radio-V1"],
         },
     ],
 
@@ -84,7 +84,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/messaging/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V2"],
+    imports: ["android.hardware.radio-V1"],
     backend: {
         cpp: {
             enabled: true,
@@ -96,7 +96,7 @@
     versions_with_info: [
         {
             version: "1",
-            imports: ["android.hardware.radio-V2"],
+            imports: ["android.hardware.radio-V1"],
         },
     ],
 
@@ -108,7 +108,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/modem/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V2"],
+    imports: ["android.hardware.radio-V1"],
     backend: {
         cpp: {
             enabled: true,
@@ -120,7 +120,7 @@
     versions_with_info: [
         {
             version: "1",
-            imports: ["android.hardware.radio-V2"],
+            imports: ["android.hardware.radio-V1"],
         },
     ],
 
@@ -132,7 +132,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/network/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V2"],
+    imports: ["android.hardware.radio-V1"],
     backend: {
         cpp: {
             enabled: true,
@@ -144,7 +144,7 @@
     versions_with_info: [
         {
             version: "1",
-            imports: ["android.hardware.radio-V2"],
+            imports: ["android.hardware.radio-V1"],
         },
     ],
 
@@ -157,7 +157,7 @@
     srcs: ["android/hardware/radio/sim/*.aidl"],
     stability: "vintf",
     imports: [
-        "android.hardware.radio-V2",
+        "android.hardware.radio-V1",
         "android.hardware.radio.config",
     ],
     backend: {
@@ -172,7 +172,7 @@
         {
             version: "1",
             imports: [
-                "android.hardware.radio-V2",
+                "android.hardware.radio-V1",
                 "android.hardware.radio.config-V1",
             ],
         },
@@ -186,7 +186,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/voice/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V2"],
+    imports: ["android.hardware.radio-V1"],
     backend: {
         cpp: {
             enabled: true,
@@ -198,7 +198,7 @@
     versions_with_info: [
         {
             version: "1",
-            imports: ["android.hardware.radio-V2"],
+            imports: ["android.hardware.radio-V1"],
         },
     ],
 
diff --git a/radio/aidl/aidl_api/android.hardware.radio.data/current/android/hardware/radio/data/IRadioDataIndication.aidl b/radio/aidl/aidl_api/android.hardware.radio.data/current/android/hardware/radio/data/IRadioDataIndication.aidl
index 5983afe..0ffa1f7 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.data/current/android/hardware/radio/data/IRadioDataIndication.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.data/current/android/hardware/radio/data/IRadioDataIndication.aidl
@@ -37,10 +37,6 @@
   oneway void dataCallListChanged(in android.hardware.radio.RadioIndicationType type, in android.hardware.radio.data.SetupDataCallResult[] dcList);
   oneway void keepaliveStatus(in android.hardware.radio.RadioIndicationType type, in android.hardware.radio.data.KeepaliveStatus status);
   oneway void pcoData(in android.hardware.radio.RadioIndicationType type, in android.hardware.radio.data.PcoDataInfo pco);
-  /**
-   * @deprecated use unthrottleDataProfile to clarify access network for this event.
-   */
   oneway void unthrottleApn(in android.hardware.radio.RadioIndicationType type, in android.hardware.radio.data.DataProfileInfo dataProfileInfo);
   oneway void slicingConfigChanged(in android.hardware.radio.RadioIndicationType type, in android.hardware.radio.data.SlicingConfig slicingConfig);
-  oneway void unthrottleDataProfile(in android.hardware.radio.RadioIndicationType type, in android.hardware.radio.AccessNetwork accessNetwork, in android.hardware.radio.data.DataProfileInfo dataProfileInfo);
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetwork.aidl b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetwork.aidl
index 3b0c5e0..832738f 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetwork.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetwork.aidl
@@ -40,9 +40,6 @@
   oneway void getBarringInfo(in int serial);
   oneway void getCdmaRoamingPreference(in int serial);
   oneway void getCellInfoList(in int serial);
-  /**
-   * @deprecated use getRegistrationState()
-   */
   oneway void getDataRegistrationState(in int serial);
   oneway void getImsRegistrationState(in int serial);
   oneway void getNetworkSelectionMode(in int serial);
@@ -50,9 +47,6 @@
   oneway void getSignalStrength(in int serial);
   oneway void getSystemSelectionChannels(in int serial);
   oneway void getVoiceRadioTechnology(in int serial);
-  /**
-   * @deprecated use getRegistrationState()
-   */
   oneway void getVoiceRegistrationState(in int serial);
   oneway void isNrDualConnectivityEnabled(in int serial);
   oneway void responseAcknowledgement();
@@ -80,5 +74,4 @@
   oneway void triggerEmergencyNetworkScan(int serial, in android.hardware.radio.network.EmergencyNetworkScanTrigger request);
   oneway void cancelEmergencyNetworkScan(in int serial);
   oneway void exitEmergencyMode(in int serial);
-  oneway void getRegistrationState(in int serial, in android.hardware.radio.RadioTechnologyFamily ratFamily, in android.hardware.radio.network.Domain domain);
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetworkResponse.aidl b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetworkResponse.aidl
index 228451f..24d587e 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetworkResponse.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetworkResponse.aidl
@@ -41,9 +41,6 @@
   oneway void getBarringInfoResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.network.CellIdentity cellIdentity, in android.hardware.radio.network.BarringInfo[] barringInfos);
   oneway void getCdmaRoamingPreferenceResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.network.CdmaRoamingType type);
   oneway void getCellInfoListResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.network.CellInfo[] cellInfo);
-  /**
-   * @deprecated use getRegistrationStateResponse()
-   */
   oneway void getDataRegistrationStateResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.network.RegStateResult dataRegResponse);
   oneway void getImsRegistrationStateResponse(in android.hardware.radio.RadioResponseInfo info, in boolean isRegistered, in android.hardware.radio.RadioTechnologyFamily ratFamily);
   oneway void getNetworkSelectionModeResponse(in android.hardware.radio.RadioResponseInfo info, in boolean manual);
@@ -51,9 +48,6 @@
   oneway void getSignalStrengthResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.network.SignalStrength signalStrength);
   oneway void getSystemSelectionChannelsResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.network.RadioAccessSpecifier[] specifiers);
   oneway void getVoiceRadioTechnologyResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.RadioTechnology rat);
-  /**
-   * @deprecated use getRegistrationStateResponse()
-   */
   oneway void getVoiceRegistrationStateResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.network.RegStateResult voiceRegResponse);
   oneway void isNrDualConnectivityEnabledResponse(in android.hardware.radio.RadioResponseInfo info, in boolean isEnabled);
   oneway void setAllowedNetworkTypesBitmapResponse(in android.hardware.radio.RadioResponseInfo info);
@@ -79,5 +73,4 @@
   oneway void triggerEmergencyNetworkScanResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void exitEmergencyModeResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void cancelEmergencyNetworkScanResponse(in android.hardware.radio.RadioResponseInfo info);
-  oneway void getRegistrationStateResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.network.RegStateResult regResponse);
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/NrVopsInfo.aidl b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/NrVopsInfo.aidl
index 0b2d733..e5a0a70 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/NrVopsInfo.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/NrVopsInfo.aidl
@@ -41,7 +41,6 @@
   const byte EMC_INDICATOR_NR_CONNECTED_TO_5GCN = 1;
   const byte EMC_INDICATOR_EUTRA_CONNECTED_TO_5GCN = 2;
   const byte EMC_INDICATOR_BOTH_NR_EUTRA_CONNECTED_TO_5GCN = 3;
-  const byte EMC_INDICATOR_EMC_OVER_NON_3GPP = 4;
   const byte EMF_INDICATOR_NOT_SUPPORTED = 0;
   const byte EMF_INDICATOR_NR_CONNECTED_TO_5GCN = 1;
   const byte EMF_INDICATOR_EUTRA_CONNECTED_TO_5GCN = 2;
diff --git a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/RegStateResult.aidl b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/RegStateResult.aidl
index c1e5c8d..f0a03ae 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/RegStateResult.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/RegStateResult.aidl
@@ -40,5 +40,4 @@
   android.hardware.radio.network.CellIdentity cellIdentity;
   String registeredPlmn;
   android.hardware.radio.network.AccessTechnologySpecificInfo accessTechnologySpecificInfo;
-  android.hardware.radio.AccessNetwork accessNetwork = android.hardware.radio.AccessNetwork.UNKNOWN;
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/AccessNetwork.aidl b/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/AccessNetwork.aidl
index 4a53a6d..8ce689f 100644
--- a/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/AccessNetwork.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/AccessNetwork.aidl
@@ -39,11 +39,6 @@
   UTRAN = 2,
   EUTRAN = 3,
   CDMA2000 = 4,
-  /**
-   * @deprecated should use N3ANEPS or N3AN5GS based on N3AN selection.
-   */
   IWLAN = 5,
   NGRAN = 6,
-  N3ANEPS = 5,
-  N3AN5GS = 7,
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioTechnologyFamily.aidl b/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioTechnologyFamily.aidl
index 5a8f403..e6fdce2 100644
--- a/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioTechnologyFamily.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioTechnologyFamily.aidl
@@ -36,5 +36,4 @@
 enum RadioTechnologyFamily {
   THREE_GPP = 0,
   THREE_GPP2 = 1,
-  NON_3GPP = 2,
 }
diff --git a/radio/aidl/android/hardware/radio/AccessNetwork.aidl b/radio/aidl/android/hardware/radio/AccessNetwork.aidl
index b85143d..2885642 100644
--- a/radio/aidl/android/hardware/radio/AccessNetwork.aidl
+++ b/radio/aidl/android/hardware/radio/AccessNetwork.aidl
@@ -23,39 +23,30 @@
     /**
      * Unknown access network
      */
-    UNKNOWN = 0,
+    UNKNOWN,
     /**
      * GSM EDGE Radio Access Network
      */
-    GERAN = 1,
+    GERAN,
     /**
      * Universal Terrestrial Radio Access Network
      */
-    UTRAN = 2,
+    UTRAN,
     /**
      * Evolved Universal Terrestrial Radio Access Network
      */
-    EUTRAN = 3,
+    EUTRAN,
     /**
      * CDMA 2000 network
      */
-    CDMA2000 = 4,
+    CDMA2000,
     /**
-     * Interworking Wireless LAN.
-     * @deprecated should use N3ANEPS or N3AN5GS based on N3AN selection.
+     * Interworking Wireless LAN
      */
-    IWLAN = 5,
+    IWLAN,
     /**
      * Next-Generation Radio Access Network (NGRAN).
      * Note NGRAN is only for standalone mode. Non-standalone mode uses AccessNetwork EUTRAN.
      */
-    NGRAN = 6,
-    /**
-     * Non-3GPP Access Network for EPS.
-     */
-    N3ANEPS = 5,
-    /**
-     * Non-3GPP Access Network for 5GS.
-     */
-    N3AN5GS = 7,
+    NGRAN,
 }
diff --git a/radio/aidl/android/hardware/radio/RadioTechnologyFamily.aidl b/radio/aidl/android/hardware/radio/RadioTechnologyFamily.aidl
index 4f4bbcb..a2b989d 100644
--- a/radio/aidl/android/hardware/radio/RadioTechnologyFamily.aidl
+++ b/radio/aidl/android/hardware/radio/RadioTechnologyFamily.aidl
@@ -28,8 +28,4 @@
      * 3GPP2 Technologies - CDMA
      */
     THREE_GPP2,
-    /**
-     * Non 3GPP Technologies - IWLAN, N3IWF
-     */
-    NON_3GPP,
 }
diff --git a/radio/aidl/android/hardware/radio/data/IRadioDataIndication.aidl b/radio/aidl/android/hardware/radio/data/IRadioDataIndication.aidl
index b2e6ca4..938c695 100644
--- a/radio/aidl/android/hardware/radio/data/IRadioDataIndication.aidl
+++ b/radio/aidl/android/hardware/radio/data/IRadioDataIndication.aidl
@@ -16,7 +16,6 @@
 
 package android.hardware.radio.data;
 
-import android.hardware.radio.AccessNetwork;
 import android.hardware.radio.RadioIndicationType;
 import android.hardware.radio.data.DataProfileInfo;
 import android.hardware.radio.data.KeepaliveStatus;
@@ -72,7 +71,6 @@
      *
      * @param type Type of radio indication
      * @param dataProfileInfo Data profile info.
-     * @deprecated use unthrottleDataProfile to clarify access network for this event.
      */
     void unthrottleApn(in RadioIndicationType type, in DataProfileInfo dataProfileInfo);
 
@@ -88,19 +86,4 @@
      *
      */
     void slicingConfigChanged(in RadioIndicationType type, in SlicingConfig slicingConfig);
-
-    /**
-     * The modem can explicitly set SetupDataCallResult::suggestedRetryTime after a failure in
-     * IRadioData.SetupDataCall. During that time, no new calls are allowed to
-     * IRadioData.SetupDataCall that use the same APN(or DNN) in DataProfile.
-     * When IRadioDataIndication.unthrottleDataProfile is sent, AOSP will no longer throttle calls
-     * to IRadioData.SetupDataCall for the given APN(or DNN) in DataProfile.
-     *
-     * @param type Type of radio indication
-     * @param accessNetwork Access network this throttling occurred, this must match the access
-     *                      network passed in setup data call request.
-     * @param dataProfileInfo Data profile info.
-     */
-    void unthrottleDataProfile(in RadioIndicationType type, in AccessNetwork accessNetwork,
-            in DataProfileInfo dataProfileInfo);
 }
diff --git a/radio/aidl/android/hardware/radio/network/IRadioNetwork.aidl b/radio/aidl/android/hardware/radio/network/IRadioNetwork.aidl
index c82fde2..0ac8b0e 100644
--- a/radio/aidl/android/hardware/radio/network/IRadioNetwork.aidl
+++ b/radio/aidl/android/hardware/radio/network/IRadioNetwork.aidl
@@ -17,11 +17,7 @@
 package android.hardware.radio.network;
 
 import android.hardware.radio.AccessNetwork;
-import android.hardware.radio.RadioTechnologyFamily;
 import android.hardware.radio.network.CdmaRoamingType;
-import android.hardware.radio.network.Domain;
-import android.hardware.radio.network.EmergencyMode;
-import android.hardware.radio.network.EmergencyNetworkScanTrigger;
 import android.hardware.radio.network.IRadioNetworkIndication;
 import android.hardware.radio.network.IRadioNetworkResponse;
 import android.hardware.radio.network.IndicationFilter;
@@ -31,6 +27,8 @@
 import android.hardware.radio.network.RadioBandMode;
 import android.hardware.radio.network.SignalThresholdInfo;
 import android.hardware.radio.network.UsageSetting;
+import android.hardware.radio.network.EmergencyNetworkScanTrigger;
+import android.hardware.radio.network.EmergencyMode;
 
 /**
  * This interface is used by telephony and telecom to talk to cellular radio for network APIs.
@@ -105,7 +103,6 @@
      * @param serial Serial number of request.
      *
      * Response function is IRadioNetworkResponse.getDataRegistrationStateResponse()
-     * @deprecated use getRegistrationState()
      */
     void getDataRegistrationState(in int serial);
 
@@ -170,7 +167,6 @@
      * @param serial Serial number of request.
      *
      * Response function is IRadioNetworkResponse.getVoiceRegistrationStateResponse()
-     * @deprecated use getRegistrationState()
      */
     void getVoiceRegistrationState(in int serial);
 
@@ -453,7 +449,7 @@
      *
      * Response function is IRadioEmergencyResponse.setEmergencyModeResponse()
      */
-    void setEmergencyMode(int serial, in EmergencyMode emcModeType);
+    void setEmergencyMode(int serial, in EmergencyMode emcModeType );
 
     /**
      * Triggers an Emergency network scan.
@@ -464,7 +460,7 @@
      *
      * Response function is IRadioEmergencyResponse.triggerEmergencyNetworkScanResponse()
      */
-    void triggerEmergencyNetworkScan(int serial, in EmergencyNetworkScanTrigger request);
+    void triggerEmergencyNetworkScan( int serial, in EmergencyNetworkScanTrigger request);
 
     /**
      * Cancels ongoing Emergency network scan
@@ -483,15 +479,4 @@
      * Response function is IRadioEmergencyResponse.exitEmergencyModeResponse()
      */
     void exitEmergencyMode(in int serial);
-
-    /**
-     * Request current registration state.
-     *
-     * @param serial Serial number of request.
-     * @param ratFamily RadioTechnologyFamily of request.
-     * @param domain Domain PS or CS of request.
-     *
-     * Response function is IRadioNetworkResponse.getRegistrationStateResponse()
-     */
-    void getRegistrationState(in int serial, in RadioTechnologyFamily ratFamily, in Domain domain);
 }
diff --git a/radio/aidl/android/hardware/radio/network/IRadioNetworkResponse.aidl b/radio/aidl/android/hardware/radio/network/IRadioNetworkResponse.aidl
index 69d53ee..243e949 100644
--- a/radio/aidl/android/hardware/radio/network/IRadioNetworkResponse.aidl
+++ b/radio/aidl/android/hardware/radio/network/IRadioNetworkResponse.aidl
@@ -23,13 +23,13 @@
 import android.hardware.radio.network.CdmaRoamingType;
 import android.hardware.radio.network.CellIdentity;
 import android.hardware.radio.network.CellInfo;
-import android.hardware.radio.network.EmergencyRegResult;
 import android.hardware.radio.network.OperatorInfo;
 import android.hardware.radio.network.RadioAccessSpecifier;
 import android.hardware.radio.network.RadioBandMode;
 import android.hardware.radio.network.RegStateResult;
 import android.hardware.radio.network.SignalStrength;
 import android.hardware.radio.network.UsageSetting;
+import android.hardware.radio.network.EmergencyRegResult;
 
 /**
  * Interface declaring response functions to solicited radio requests for network APIs.
@@ -153,8 +153,6 @@
      *   RadioError:RADIO_NOT_AVAILABLE
      *   RadioError:INTERNAL_ERR
      *   RadioError:NOT_PROVISIONED
-     *
-     * @deprecated use getRegistrationStateResponse()
      */
     void getDataRegistrationStateResponse(
             in RadioResponseInfo info, in RegStateResult dataRegResponse);
@@ -261,8 +259,6 @@
      *   RadioError:NONE
      *   RadioError:RADIO_NOT_AVAILABLE
      *   RadioError:INTERNAL_ERR
-     *
-     * @deprecated use getRegistrationStateResponse()
      */
     void getVoiceRegistrationStateResponse(
             in RadioResponseInfo info, in RegStateResult voiceRegResponse);
@@ -620,16 +616,4 @@
      *   RadioError:MODEM_ERR
      */
     void cancelEmergencyNetworkScanResponse(in RadioResponseInfo info);
-
-    /**
-     * @param info Response info struct containing response type, serial no. and error
-     * @param regResponse Current registration response as defined by RegStateResult
-     *
-     * Valid errors returned:
-     *   RadioError:NONE
-     *   RadioError:RADIO_NOT_AVAILABLE
-     *   RadioError:INTERNAL_ERR
-     *   RadioError:NOT_PROVISIONED
-     */
-    void getRegistrationStateResponse(in RadioResponseInfo info, in RegStateResult regResponse);
 }
diff --git a/radio/aidl/android/hardware/radio/network/NrVopsInfo.aidl b/radio/aidl/android/hardware/radio/network/NrVopsInfo.aidl
index 2b0b7c9..197f401 100644
--- a/radio/aidl/android/hardware/radio/network/NrVopsInfo.aidl
+++ b/radio/aidl/android/hardware/radio/network/NrVopsInfo.aidl
@@ -39,10 +39,6 @@
      * Emergency services supported in NR connected to 5GCN and E-UTRA connected to 5GCN
      */
     const byte EMC_INDICATOR_BOTH_NR_EUTRA_CONNECTED_TO_5GCN = 3;
-    /**
-     * Emergency services supported over 5G N3GPP access.
-     */
-    const byte EMC_INDICATOR_EMC_OVER_NON_3GPP = 4;
 
     /**
      * Emergency services fallback not supported
@@ -100,7 +96,6 @@
      * NR REGISTRATION ACCEPT.
      * Refer 3GPP 24.501 EPS 5GS network feature support -> EMF
      * Values are EMF_INDICATOR_ from TS 24.501 sec 9.10.3.5.
-     * Not Applicable for the registration via non-3GPP access.
      */
     byte emfSupported;
 }
diff --git a/radio/aidl/android/hardware/radio/network/RegStateResult.aidl b/radio/aidl/android/hardware/radio/network/RegStateResult.aidl
index 979b4b8..3d96b8c 100644
--- a/radio/aidl/android/hardware/radio/network/RegStateResult.aidl
+++ b/radio/aidl/android/hardware/radio/network/RegStateResult.aidl
@@ -16,7 +16,6 @@
 
 package android.hardware.radio.network;
 
-import android.hardware.radio.AccessNetwork;
 import android.hardware.radio.RadioTechnology;
 import android.hardware.radio.network.AccessTechnologySpecificInfo;
 import android.hardware.radio.network.CellIdentity;
@@ -60,8 +59,4 @@
      * Access-technology-specific registration information, such as for CDMA2000.
      */
     AccessTechnologySpecificInfo accessTechnologySpecificInfo;
-    /**
-     * Indicates the access network used for this registration.
-     */
-    AccessNetwork accessNetwork = AccessNetwork.UNKNOWN;
 }
diff --git a/radio/aidl/compat/libradiocompat/Android.bp b/radio/aidl/compat/libradiocompat/Android.bp
index 2f7fc59..f79e045 100644
--- a/radio/aidl/compat/libradiocompat/Android.bp
+++ b/radio/aidl/compat/libradiocompat/Android.bp
@@ -31,13 +31,12 @@
         "-DANDROID_UTILS_REF_BASE_DISABLE_IMPLICIT_CONSTRUCTION",
     ],
     shared_libs: [
-        "android.hardware.radio-V2-ndk",
         "android.hardware.radio.config-V1-ndk",
         "android.hardware.radio.config@1.0",
         "android.hardware.radio.config@1.1",
         "android.hardware.radio.config@1.2",
         "android.hardware.radio.config@1.3",
-        "android.hardware.radio.data-V2-ndk",
+        "android.hardware.radio.data-V1-ndk",
         "android.hardware.radio.messaging-V1-ndk",
         "android.hardware.radio.modem-V1-ndk",
         "android.hardware.radio.network-V2-ndk",
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioNetwork.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioNetwork.h
index c886267..c714190 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioNetwork.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioNetwork.h
@@ -99,9 +99,6 @@
                     scanTrigger) override;
     ::ndk::ScopedAStatus cancelEmergencyNetworkScan(int32_t serial) override;
     ::ndk::ScopedAStatus exitEmergencyMode(int32_t serial) override;
-    ::ndk::ScopedAStatus getRegistrationState(
-            int32_t serial, ::aidl::android::hardware::radio::RadioTechnologyFamily ratFamily,
-            ::aidl::android::hardware::radio::network::Domain domain) override;
 
   protected:
     std::shared_ptr<::aidl::android::hardware::radio::network::IRadioNetworkResponse> respond();
diff --git a/radio/aidl/compat/libradiocompat/network/RadioNetwork.cpp b/radio/aidl/compat/libradiocompat/network/RadioNetwork.cpp
index 638b34e..ff30ac3 100644
--- a/radio/aidl/compat/libradiocompat/network/RadioNetwork.cpp
+++ b/radio/aidl/compat/libradiocompat/network/RadioNetwork.cpp
@@ -340,16 +340,4 @@
     return ok();
 }
 
-ScopedAStatus RadioNetwork::getRegistrationState(
-        int32_t serial, ::aidl::android::hardware::radio::RadioTechnologyFamily ratFamily,
-        aidl::Domain domain) {
-    LOG_CALL << serial;
-    if (ratFamily == ::aidl::android::hardware::radio::RadioTechnologyFamily::THREE_GPP &&
-        domain == aidl::Domain::PS) {
-        LOG_CALL << " Radio Technology Family 3GPP and Domain PS";
-    }
-    LOG(ERROR) << " geRegistrationState is unsupported by HIDL HALs";
-    respond()->getRegistrationStateResponse(notSupported(serial), {});
-    return ok();
-}
 }  // namespace android::hardware::radio::compat
diff --git a/radio/aidl/compat/service/Android.bp b/radio/aidl/compat/service/Android.bp
index 45a3497..4dbaef4 100644
--- a/radio/aidl/compat/service/Android.bp
+++ b/radio/aidl/compat/service/Android.bp
@@ -34,13 +34,12 @@
     ],
     shared_libs: [
         "android.hardware.radio-library.compat",
-        "android.hardware.radio-V2-ndk",
         "android.hardware.radio.config-V1-ndk",
         "android.hardware.radio.config@1.0",
         "android.hardware.radio.config@1.1",
         "android.hardware.radio.config@1.2",
         "android.hardware.radio.config@1.3",
-        "android.hardware.radio.data-V2-ndk",
+        "android.hardware.radio.data-V1-ndk",
         "android.hardware.radio.messaging-V1-ndk",
         "android.hardware.radio.modem-V1-ndk",
         "android.hardware.radio.network-V2-ndk",
diff --git a/radio/aidl/vts/Android.bp b/radio/aidl/vts/Android.bp
index ba68728..0d4bb3e 100644
--- a/radio/aidl/vts/Android.bp
+++ b/radio/aidl/vts/Android.bp
@@ -63,9 +63,9 @@
         "libvintf",
     ],
     static_libs: [
-        "android.hardware.radio-V2-ndk",
+        "android.hardware.radio-V1-ndk",
         "android.hardware.radio.config-V1-ndk",
-        "android.hardware.radio.data-V2-ndk",
+        "android.hardware.radio.data-V1-ndk",
         "android.hardware.radio.messaging-V1-ndk",
         "android.hardware.radio.modem-V1-ndk",
         "android.hardware.radio.network-V2-ndk",
diff --git a/radio/aidl/vts/radio_data_indication.cpp b/radio/aidl/vts/radio_data_indication.cpp
index 213505d..61e079e 100644
--- a/radio/aidl/vts/radio_data_indication.cpp
+++ b/radio/aidl/vts/radio_data_indication.cpp
@@ -42,10 +42,3 @@
         RadioIndicationType /*type*/, const SlicingConfig& /*slicingConfig*/) {
     return ndk::ScopedAStatus::ok();
 }
-
-ndk::ScopedAStatus RadioDataIndication::unthrottleDataProfile(
-        RadioIndicationType /*type*/,
-        ::aidl::android::hardware::radio::AccessNetwork /*accessNetwork*/,
-        const DataProfileInfo& /*dataProfileInfo*/) {
-    return ndk::ScopedAStatus::ok();
-}
diff --git a/radio/aidl/vts/radio_data_utils.h b/radio/aidl/vts/radio_data_utils.h
index cfb2ab2..fb91ef6 100644
--- a/radio/aidl/vts/radio_data_utils.h
+++ b/radio/aidl/vts/radio_data_utils.h
@@ -97,9 +97,6 @@
                                              const DataProfileInfo& dataProfile) override;
     virtual ndk::ScopedAStatus slicingConfigChanged(RadioIndicationType type,
                                                     const SlicingConfig& slicingConfig) override;
-    virtual ndk::ScopedAStatus unthrottleDataProfile(
-            RadioIndicationType type, ::aidl::android::hardware::radio::AccessNetwork accessNetwork,
-            const DataProfileInfo& dataProfile) override;
 };
 
 // The main test class for Radio AIDL Data.
diff --git a/radio/aidl/vts/radio_network_response.cpp b/radio/aidl/vts/radio_network_response.cpp
index ff58ecd..5599c03 100644
--- a/radio/aidl/vts/radio_network_response.cpp
+++ b/radio/aidl/vts/radio_network_response.cpp
@@ -293,11 +293,3 @@
     parent_network.notify(info.serial);
     return ndk::ScopedAStatus::ok();
 }
-
-ndk::ScopedAStatus RadioNetworkResponse::getRegistrationStateResponse(
-        const RadioResponseInfo& info, const RegStateResult& regResponse) {
-    rspInfo = info;
-    regResp = regResponse;
-    parent_network.notify(info.serial);
-    return ndk::ScopedAStatus::ok();
-}
diff --git a/radio/aidl/vts/radio_network_test.cpp b/radio/aidl/vts/radio_network_test.cpp
index 054b69e..25c42d3 100644
--- a/radio/aidl/vts/radio_network_test.cpp
+++ b/radio/aidl/vts/radio_network_test.cpp
@@ -15,9 +15,7 @@
  */
 
 #include <aidl/android/hardware/radio/RadioAccessFamily.h>
-#include <aidl/android/hardware/radio/RadioTechnologyFamily.h>
 #include <aidl/android/hardware/radio/config/IRadioConfig.h>
-#include <aidl/android/hardware/radio/network/Domain.h>
 #include <aidl/android/hardware/radio/network/IndicationFilter.h>
 #include <android-base/logging.h>
 #include <android/binder_manager.h>
@@ -1913,91 +1911,3 @@
             {RadioError::NONE, RadioError::RADIO_NOT_AVAILABLE, RadioError::MODEM_ERR}));
     LOG(DEBUG) << "exitEmergencyMode finished";
 }
-
-/*
- * Test IRadioNetwork.getRegistrationState() for the response returned.
- */
-TEST_P(RadioNetworkTest, getRegistrationState) {
-    serial = GetRandomSerialNumber();
-
-    ndk::ScopedAStatus res = radio_network->getRegistrationState(
-            serial, RadioTechnologyFamily::THREE_GPP, Domain::PS);
-    ASSERT_OK(res);
-    EXPECT_EQ(std::cv_status::no_timeout, wait());
-    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_network->rspInfo.type);
-    EXPECT_EQ(serial, radioRsp_network->rspInfo.serial);
-
-    ALOGI("getRegistrationStateResponse, rspInfo.error = %s\n",
-          toString(radioRsp_network->rspInfo.error).c_str());
-    ASSERT_TRUE(CheckAnyOfErrors(
-            radioRsp_network->rspInfo.error,
-            {RadioError::NONE, RadioError::RADIO_NOT_AVAILABLE, RadioError::NOT_PROVISIONED}));
-    // Check the mcc [0, 999] and mnc [0, 999].
-    std::string mcc;
-    std::string mnc;
-    bool checkMccMnc = true;
-    CellIdentity cellIdentity = radioRsp_network->regResp.cellIdentity;
-    switch (cellIdentity.getTag()) {
-        case CellIdentity::noinit: {
-            checkMccMnc = false;
-            break;
-        }
-        case CellIdentity::gsm: {
-            CellIdentityGsm cig = cellIdentity.get<CellIdentity::gsm>();
-            mcc = cig.mcc;
-            mnc = cig.mnc;
-            break;
-        }
-        case CellIdentity::wcdma: {
-            CellIdentityWcdma ciw = cellIdentity.get<CellIdentity::wcdma>();
-            mcc = ciw.mcc;
-            mnc = ciw.mnc;
-            break;
-        }
-        case CellIdentity::tdscdma: {
-            CellIdentityTdscdma cit = cellIdentity.get<CellIdentity::tdscdma>();
-            mcc = cit.mcc;
-            mnc = cit.mnc;
-            break;
-        }
-        case CellIdentity::cdma: {
-            // CellIdentityCdma has no mcc/mnc
-            CellIdentityCdma cic = cellIdentity.get<CellIdentity::cdma>();
-            checkMccMnc = false;
-            break;
-        }
-        case CellIdentity::lte: {
-            CellIdentityLte cil = cellIdentity.get<CellIdentity::lte>();
-            mcc = cil.mcc;
-            mnc = cil.mnc;
-            break;
-        }
-        case CellIdentity::nr: {
-            CellIdentityNr cin = cellIdentity.get<CellIdentity::nr>();
-            mcc = cin.mcc;
-            mnc = cin.mnc;
-            break;
-        }
-    }
-
-    // 32 bit system might return invalid mcc and mnc string "\xff\xff..."
-    if (checkMccMnc && mcc.size() < 4 && mnc.size() < 4) {
-        int mcc_int = stoi(mcc);
-        int mnc_int = stoi(mnc);
-        EXPECT_TRUE(mcc_int >= 0 && mcc_int <= 999);
-        EXPECT_TRUE(mnc_int >= 0 && mnc_int <= 999);
-    }
-
-    // Check for access technology specific info
-    AccessTechnologySpecificInfo info = radioRsp_network->regResp.accessTechnologySpecificInfo;
-    RadioTechnology rat = radioRsp_network->regResp.rat;
-    // TODO: add logic for cdmaInfo
-    if (rat == RadioTechnology::LTE || rat == RadioTechnology::LTE_CA) {
-        ASSERT_EQ(info.getTag(), AccessTechnologySpecificInfo::eutranInfo);
-    } else if (rat == RadioTechnology::NR) {
-        ASSERT_EQ(info.getTag(), AccessTechnologySpecificInfo::ngranNrVopsInfo);
-    }
-    AccessNetwork an = radioRsp_network->regResp.accessNetwork;
-    ASSERT_NE(an, AccessNetwork::N3AN5GS);
-    ASSERT_NE(an, AccessNetwork::N3ANEPS);
-}
diff --git a/radio/aidl/vts/radio_network_utils.h b/radio/aidl/vts/radio_network_utils.h
index f30b742..8480825 100644
--- a/radio/aidl/vts/radio_network_utils.h
+++ b/radio/aidl/vts/radio_network_utils.h
@@ -42,7 +42,6 @@
     int networkTypeBitmapResponse;
     RegStateResult voiceRegResp;
     RegStateResult dataRegResp;
-    RegStateResult regResp;
     CellIdentity barringCellIdentity;
     std::vector<BarringInfo> barringInfoList;
     UsageSetting usageSetting;
@@ -159,9 +158,6 @@
 
     virtual ndk::ScopedAStatus cancelEmergencyNetworkScanResponse(
             const RadioResponseInfo& info) override;
-
-    virtual ndk::ScopedAStatus getRegistrationStateResponse(
-            const RadioResponseInfo& info, const RegStateResult& regResponse) override;
 };
 
 /* Callback class for radio network indication */