diff --git a/broadcastradio/aidl/Android.bp b/broadcastradio/aidl/Android.bp
index 82ee949..081bae3 100644
--- a/broadcastradio/aidl/Android.bp
+++ b/broadcastradio/aidl/Android.bp
@@ -51,12 +51,12 @@
         },
 
     ],
-    frozen: true,
+    frozen: false,
 
 }
 
 // Note: This should always be one version ahead of the last frozen version
-latest_android_hardware_broadcastradio = "android.hardware.broadcastradio-V2"
+latest_android_hardware_broadcastradio = "android.hardware.broadcastradio-V3"
 
 cc_defaults {
     name: "latest_android_hardware_broadcastradio_ndk_static",
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Alert.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Alert.aidl
new file mode 100644
index 0000000..7e02f70
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Alert.aidl
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable Alert {
+  android.hardware.broadcastradio.AlertStatus status;
+  android.hardware.broadcastradio.AlertMessageType messageType;
+  android.hardware.broadcastradio.AlertInfo[] infoArray;
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertArea.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertArea.aidl
new file mode 100644
index 0000000..aa828d0
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertArea.aidl
@@ -0,0 +1,39 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable AlertArea {
+  android.hardware.broadcastradio.Polygon[] polygons;
+  android.hardware.broadcastradio.Geocode[] geocodes;
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertCategory.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertCategory.aidl
new file mode 100644
index 0000000..f493e75
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertCategory.aidl
@@ -0,0 +1,49 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@Backing(type="int") @JavaDerive(equals=true, toString=true) @VintfStability
+enum AlertCategory {
+  GEO,
+  MET,
+  SAFETY,
+  SECURITY,
+  RESCUE,
+  FIRE,
+  HEALTH,
+  ENV,
+  TRANSPORT,
+  INFRA,
+  CBRNE,
+  OTHER,
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertCertainty.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertCertainty.aidl
new file mode 100644
index 0000000..dcf283a
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertCertainty.aidl
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@Backing(type="int") @JavaDerive(equals=true, toString=true) @VintfStability
+enum AlertCertainty {
+  OBSERVED,
+  LIKELY,
+  POSSIBLE,
+  UNLIKELY,
+  UNKNOWN,
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertInfo.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertInfo.aidl
new file mode 100644
index 0000000..da08c9a
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertInfo.aidl
@@ -0,0 +1,44 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable AlertInfo {
+  android.hardware.broadcastradio.AlertCategory[] categoryArray;
+  android.hardware.broadcastradio.AlertUrgency urgency;
+  android.hardware.broadcastradio.AlertSeverity severity;
+  android.hardware.broadcastradio.AlertCertainty certainty;
+  String description;
+  android.hardware.broadcastradio.AlertArea[] areas;
+  @nullable String language;
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertMessageType.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertMessageType.aidl
new file mode 100644
index 0000000..2b89c92
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertMessageType.aidl
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@Backing(type="int") @JavaDerive(equals=true, toString=true) @VintfStability
+enum AlertMessageType {
+  ALERT,
+  UPDATE,
+  CANCEL,
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertSeverity.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertSeverity.aidl
new file mode 100644
index 0000000..5c91abd
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertSeverity.aidl
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@Backing(type="int") @JavaDerive(equals=true, toString=true) @VintfStability
+enum AlertSeverity {
+  EXTREME,
+  SEVERE,
+  MODERATE,
+  MINOR,
+  UNKNOWN,
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertStatus.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertStatus.aidl
new file mode 100644
index 0000000..8ce69b5
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertStatus.aidl
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@Backing(type="int") @JavaDerive(equals=true, toString=true) @VintfStability
+enum AlertStatus {
+  ACTUAL,
+  EXERCISE,
+  TEST,
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertUrgency.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertUrgency.aidl
new file mode 100644
index 0000000..fd0491d
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/AlertUrgency.aidl
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@Backing(type="int") @JavaDerive(equals=true, toString=true) @VintfStability
+enum AlertUrgency {
+  IMMEDIATE,
+  EXPECTED,
+  FUTURE,
+  PAST,
+  UNKNOWN,
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Coordinate.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Coordinate.aidl
new file mode 100644
index 0000000..b303986
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Coordinate.aidl
@@ -0,0 +1,39 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable Coordinate {
+  double latitude;
+  double longitude;
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Geocode.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Geocode.aidl
new file mode 100644
index 0000000..a07e1c0
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Geocode.aidl
@@ -0,0 +1,39 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable Geocode {
+  String valueName;
+  String value;
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Polygon.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Polygon.aidl
new file mode 100644
index 0000000..4d4d78d
--- /dev/null
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/Polygon.aidl
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.broadcastradio;
+@JavaDerive(equals=true, toString=true) @VintfStability
+parcelable Polygon {
+  android.hardware.broadcastradio.Coordinate[] coordinates;
+}
diff --git a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/ProgramInfo.aidl b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/ProgramInfo.aidl
index 997cdd7..dd57901 100644
--- a/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/ProgramInfo.aidl
+++ b/broadcastradio/aidl/aidl_api/android.hardware.broadcastradio/current/android/hardware/broadcastradio/ProgramInfo.aidl
@@ -42,6 +42,7 @@
   int signalQuality;
   android.hardware.broadcastradio.Metadata[] metadata;
   android.hardware.broadcastradio.VendorKeyValue[] vendorInfo;
+  @nullable android.hardware.broadcastradio.Alert emergencyAlert;
   const int FLAG_LIVE = (1 << 0) /* 1 */;
   const int FLAG_MUTED = (1 << 1) /* 2 */;
   const int FLAG_TRAFFIC_PROGRAM = (1 << 2) /* 4 */;
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/Alert.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/Alert.aidl
new file mode 100644
index 0000000..a307ccc
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/Alert.aidl
@@ -0,0 +1,46 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+import android.hardware.broadcastradio.AlertInfo;
+import android.hardware.broadcastradio.AlertMessageType;
+import android.hardware.broadcastradio.AlertStatus;
+
+/**
+ * Emergency Alert Message.
+ *
+ * <p>Alert message can be sent from a radio station of technologies such as HD radio to
+ * the radio users for some emergency events (see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+parcelable Alert {
+    /**
+     * The status of the alert message.
+     */
+    AlertStatus status;
+
+    /**
+     * The message type of the alert message.
+     */
+    AlertMessageType messageType;
+
+    /**
+     * Array of alert information.
+     */
+    AlertInfo[] infoArray;
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/AlertArea.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/AlertArea.aidl
new file mode 100644
index 0000000..b3f07b3
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/AlertArea.aidl
@@ -0,0 +1,39 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+import android.hardware.broadcastradio.Geocode;
+import android.hardware.broadcastradio.Polygon;
+
+/**
+ * The geographic area that delineates the affected area of the alert message
+ *
+ * <p>(see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+parcelable AlertArea {
+    /**
+     * Polygons that delineate the affected area of the alert message.
+     */
+    Polygon[] polygons;
+
+    /**
+     * Geographic code delineating the affected area of the alert message.
+     */
+    Geocode[] geocodes;
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/AlertCategory.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/AlertCategory.aidl
new file mode 100644
index 0000000..a24361a
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/AlertCategory.aidl
@@ -0,0 +1,88 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+/**
+ * The category of the subject event of the emergency alert message.
+ *
+ * <p>(see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@Backing(type="int")
+@JavaDerive(equals=true, toString=true)
+enum AlertCategory {
+    /**
+     * Alert category related to geophysical (inc. landslide).
+     */
+    GEO,
+
+    /**
+     * Alert category related to meteorological (inc. flood).
+     */
+    MET,
+
+    /**
+     * Alert category related to general emergency and public safety.
+     */
+    SAFETY,
+
+    /**
+     * Alert category related to law enforcement, military, homeland and local/private security.
+     */
+    SECURITY,
+
+    /**
+     * Alert category related to rescue and recovery.
+     */
+    RESCUE,
+
+    /**
+     * Alert category related to fire suppression and rescue.
+     */
+    FIRE,
+
+    /**
+     * Alert category related to medical and public health.
+     */
+    HEALTH,
+
+    /**
+     * Alert category related to pollution and other environmental.
+     */
+    ENV,
+
+    /**
+     * Alert category related to public and private transportation.
+     */
+    TRANSPORT,
+
+    /**
+     * Utility, telecommunication, other non-transport infrastructure.
+     */
+    INFRA,
+
+    /**
+     * Alert category related to chemical, biological, radiological, nuclear or high-yield
+     * explosive threat or attack.
+     */
+    CBRNE,
+
+    /**
+     * Alert category related to other events.
+     */
+    OTHER,
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/AlertCertainty.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/AlertCertainty.aidl
new file mode 100644
index 0000000..11f069e
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/AlertCertainty.aidl
@@ -0,0 +1,52 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+/**
+ * The certainty of the subject event of the emergency alert message
+ *
+ * <p>(see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@Backing(type="int")
+@JavaDerive(equals=true, toString=true)
+enum AlertCertainty {
+    /**
+     * Certainty indicating that the event is determined to have occurred or to be ongoing.
+     */
+    OBSERVED,
+
+    /**
+     * Certainty indicating that the event is likely (probability > ~50%).
+     */
+    LIKELY,
+
+    /**
+     * Certainty indicating that the event is possible but not likely (probability <= ~50%).
+     */
+    POSSIBLE,
+
+    /**
+     * Certainty indicating that the event is not expected to occur (probability ~ 0).
+     */
+    UNLIKELY,
+
+    /**
+     * Unknown certainty.
+     */
+    UNKNOWN,
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/AlertInfo.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/AlertInfo.aidl
new file mode 100644
index 0000000..ab2e6f7
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/AlertInfo.aidl
@@ -0,0 +1,77 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+import android.hardware.broadcastradio.AlertArea;
+import android.hardware.broadcastradio.AlertCategory;
+import android.hardware.broadcastradio.AlertCertainty;
+import android.hardware.broadcastradio.AlertSeverity;
+import android.hardware.broadcastradio.AlertUrgency;
+
+/**
+ * Alert information.
+ *
+ * <p>(see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+parcelable AlertInfo {
+    /**
+     * Array of categories of the subject event of the alert info.
+     *
+     * <p>According to ITU-T X.1303, a single alert info block may contains multiple categories.
+     */
+    AlertCategory[] categoryArray;
+
+    /**
+     * The urgency of the subject event of the alert info.
+     *
+     * <p>Urgency represents the time available to prepare for the alert.
+     */
+    AlertUrgency urgency;
+
+    /**
+     * The severity of the subject event of the alert info.
+     *
+     * <p>Severity represents the intensity of impact.
+     */
+    AlertSeverity severity;
+
+    /**
+     * The certainty of the subject event of the alert info.
+     *
+     * <p>Certainty represents confidence in the observation or prediction.
+     */
+    AlertCertainty certainty;
+
+    /**
+     * Textual descriptions of the subject event.
+     */
+    String description;
+
+    /**
+     * The array of geographic areas to which the alert info segment in which it appears applies.
+     */
+    AlertArea[] areas;
+
+    /**
+     * The IETF RFC 3066 language code donating the language of the alert message.
+     *
+     * <p>This field is optional.
+     */
+    @nullable String language;
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/AlertMessageType.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/AlertMessageType.aidl
new file mode 100644
index 0000000..1dd4e2b
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/AlertMessageType.aidl
@@ -0,0 +1,43 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+/**
+ * The emergency alert message type
+ *
+ * <p>The message type indicates the emergency alert message nature.
+ * (see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@Backing(type="int")
+@JavaDerive(equals=true, toString=true)
+enum AlertMessageType {
+    /**
+     * Initial information requiring attention by targeted recipients.
+     */
+    ALERT,
+
+    /**
+     * Updates and supersedes the earlier message(s).
+     */
+    UPDATE,
+
+    /**
+     * Cancels the earlier message(s).
+     */
+    CANCEL,
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/AlertSeverity.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/AlertSeverity.aidl
new file mode 100644
index 0000000..acc11c4
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/AlertSeverity.aidl
@@ -0,0 +1,52 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+/**
+ * The severity of the subject event of the emergency alert message
+ *
+ * <p>(see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@Backing(type="int")
+@JavaDerive(equals=true, toString=true)
+enum AlertSeverity {
+    /**
+     * Severity indicating extraordinary threat to life or property.
+     */
+    EXTREME,
+
+    /**
+     * Severity indicating significant threat to life or property.
+     */
+    SEVERE,
+
+    /**
+     * Severity indicating possible threat to life or property.
+     */
+    MODERATE,
+
+    /**
+     * Severity indicating minimal to no known threat to life or property.
+     */
+    MINOR,
+
+    /**
+     * Unknown severity.
+     */
+    UNKNOWN,
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/AlertStatus.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/AlertStatus.aidl
new file mode 100644
index 0000000..8b0c917
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/AlertStatus.aidl
@@ -0,0 +1,42 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+/**
+ * The status of the alert message
+ *
+ * <p>Status is the appropriate handling of the alert message (see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@Backing(type="int")
+@JavaDerive(equals=true, toString=true)
+enum AlertStatus {
+    /**
+     * Actionable by all targeted recipients.
+     */
+    ACTUAL,
+
+    /**
+     * Actionable only by designated exercise participants.
+     */
+    EXERCISE,
+
+    /**
+     * Technical testing only, all recipients disregard.
+     */
+    TEST,
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/AlertUrgency.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/AlertUrgency.aidl
new file mode 100644
index 0000000..a0ef4a9
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/AlertUrgency.aidl
@@ -0,0 +1,52 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+/**
+ * The severity of the subject event of the emergency alert message.
+ *
+ * <p>(see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@Backing(type="int")
+@JavaDerive(equals=true, toString=true)
+enum AlertUrgency {
+    /**
+     * Urgency indicating that responsive action should be taken immediately.
+     */
+    IMMEDIATE,
+
+    /**
+     * Urgency indicating that responsive action should be taken soon.
+     */
+    EXPECTED,
+
+    /**
+     * Urgency indicating that responsive action should be taken in the near future.
+     */
+    FUTURE,
+
+    /**
+     * Urgency indicating that responsive action is no longer required.
+     */
+    PAST,
+
+    /**
+     * Unknown rgency.
+     */
+    UNKNOWN,
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/Coordinate.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/Coordinate.aidl
new file mode 100644
index 0000000..b881534
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/Coordinate.aidl
@@ -0,0 +1,40 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+/**
+ * Coordinate reprensenting the geographic location in alert message
+ *
+ * <p>(see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+parcelable Coordinate {
+    /**
+     * Latitude of the cooridinate.
+     *
+     * <p>Latitude is in the range of -90 to 90.
+     */
+    double latitude;
+
+    /**
+     * Longitude of the cooridinate.
+     *
+     * <p>Longitude is in the range of -90 to 90.
+     */
+    double longitude;
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/Geocode.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/Geocode.aidl
new file mode 100644
index 0000000..f0162ca
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/Geocode.aidl
@@ -0,0 +1,39 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+/**
+ * Geographic code reprensenting location in alert message
+ *
+ * <p>(see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+parcelable Geocode {
+    /**
+     * Value name of a geographic code.
+     *
+     * <p>Value name are acronyms should be represented in all capital
+     * letters without periods (e.g., SAME, FIPS, ZIP).
+     */
+    String valueName;
+
+    /**
+     * Value of a geographic code.
+     */
+    String value;
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/Polygon.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/Polygon.aidl
new file mode 100644
index 0000000..12bd2cd
--- /dev/null
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/Polygon.aidl
@@ -0,0 +1,36 @@
+/*
+ * 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 android.hardware.broadcastradio;
+
+import android.hardware.broadcastradio.Coordinate;
+
+/**
+ * The array of coordinates defining a polygon
+ *
+ * <p>(see ITU-T X.1303 bis for more info).
+ */
+@VintfStability
+@JavaDerive(equals=true, toString=true)
+parcelable Polygon {
+    /**
+     * Cooridinates of points defining a polygon.
+     *
+     * <p>A minimum of 4 coordinates MUST be present and the first and last
+     * coordinates must be the same. See WGS 84 for more information.
+     */
+    Coordinate[] coordinates;
+}
diff --git a/broadcastradio/aidl/android/hardware/broadcastradio/ProgramInfo.aidl b/broadcastradio/aidl/android/hardware/broadcastradio/ProgramInfo.aidl
index d4ccd01..0b5abe2 100644
--- a/broadcastradio/aidl/android/hardware/broadcastradio/ProgramInfo.aidl
+++ b/broadcastradio/aidl/android/hardware/broadcastradio/ProgramInfo.aidl
@@ -16,6 +16,7 @@
 
 package android.hardware.broadcastradio;
 
+import android.hardware.broadcastradio.Alert;
 import android.hardware.broadcastradio.Metadata;
 import android.hardware.broadcastradio.ProgramIdentifier;
 import android.hardware.broadcastradio.ProgramSelector;
@@ -192,4 +193,12 @@
      * for example: paid-service=true; bitrate=320kbps.
      */
     VendorKeyValue[] vendorInfo;
+
+    /**
+     * Emergency alert message.
+     *
+     * <p>Alert message can be sent from a radio station of technologies such as HD radio to
+     * the radio users for some emergency events.
+     */
+    @nullable Alert emergencyAlert;
 }
diff --git a/broadcastradio/aidl/vts/src/VtsHalBroadcastradioAidlTargetTest.cpp b/broadcastradio/aidl/vts/src/VtsHalBroadcastradioAidlTargetTest.cpp
index ee0c639..7e9e458 100644
--- a/broadcastradio/aidl/vts/src/VtsHalBroadcastradioAidlTargetTest.cpp
+++ b/broadcastradio/aidl/vts/src/VtsHalBroadcastradioAidlTargetTest.cpp
@@ -16,6 +16,7 @@
 
 #define EGMOCK_VERBOSE 1
 
+#include <aidl/android/hardware/broadcastradio/Alert.h>
 #include <aidl/android/hardware/broadcastradio/BnAnnouncementListener.h>
 #include <aidl/android/hardware/broadcastradio/BnTunerCallback.h>
 #include <aidl/android/hardware/broadcastradio/ConfigFlag.h>
@@ -76,12 +77,13 @@
 
 constexpr int32_t kAidlVersion1 = 1;
 constexpr int32_t kAidlVersion2 = 2;
+constexpr int32_t kAidlVersion3 = 3;
 
 bool isValidAmFmFreq(int64_t freq, int aidlVersion) {
     ProgramIdentifier id = bcutils::makeIdentifier(IdentifierType::AMFM_FREQUENCY_KHZ, freq);
     if (aidlVersion == kAidlVersion1) {
         return bcutils::isValid(id);
-    } else if (aidlVersion == kAidlVersion2) {
+    } else if (aidlVersion >= kAidlVersion2) {
         return bcutils::isValidV2(id);
     }
     LOG(ERROR) << "Unknown AIDL version " << aidlVersion;
@@ -105,6 +107,41 @@
     return false;
 }
 
+void validateMetadata(const ProgramInfo& info, int32_t aidlVersion) {
+    for (const auto& metadataItem : info.metadata) {
+        bool validMetadata = false;
+        if (aidlVersion == kAidlVersion1) {
+            validMetadata = bcutils::isValidMetadata(metadataItem);
+        } else {
+            validMetadata = bcutils::isValidMetadataV2(metadataItem);
+        }
+        EXPECT_TRUE(validMetadata) << "Invalid metadata " << metadataItem.toString().c_str();
+    }
+}
+
+void validateAlert(const ProgramInfo& info, int32_t aidlVersion) {
+    if (aidlVersion < kAidlVersion3 || !info.emergencyAlert.has_value()) {
+        return;
+    }
+    Alert alert = info.emergencyAlert.value();
+    ASSERT_FALSE(alert.infoArray.empty());
+    for (const auto& alertInfo : alert.infoArray) {
+        ASSERT_FALSE(alertInfo.categoryArray.empty());
+        if (alertInfo.areas.empty()) {
+            continue;
+        }
+        for (const auto& area : alertInfo.areas) {
+            if (area.polygons.empty()) {
+                continue;
+            }
+            for (const auto& polygon : area.polygons) {
+                ASSERT_GE(polygon.coordinates.size(), 4);
+                EXPECT_EQ(polygon.coordinates.front(), polygon.coordinates.back());
+            }
+        }
+    }
+}
+
 }  // namespace
 
 class CallbackFlag final {
@@ -250,15 +287,9 @@
         }
     }
 
-    for (const auto& metadataItem : info.metadata) {
-        bool validMetadata = false;
-        if (mCallbackAidlVersion == kAidlVersion1) {
-            validMetadata = bcutils::isValidMetadata(metadataItem);
-        } else {
-            validMetadata = bcutils::isValidMetadataV2(metadataItem);
-        }
-        EXPECT_TRUE(validMetadata) << "Invalid metadata " << metadataItem.toString().c_str();
-    }
+    validateMetadata(info, mCallbackAidlVersion);
+
+    validateAlert(info, mCallbackAidlVersion);
 
     {
         std::lock_guard<std::mutex> lk(mLock);
@@ -349,7 +380,7 @@
     // get AIDL HAL version
     ASSERT_TRUE(mModule->getInterfaceVersion(&mAidlVersion).isOk());
     EXPECT_GE(mAidlVersion, kAidlVersion1);
-    EXPECT_LE(mAidlVersion, kAidlVersion2);
+    EXPECT_LE(mAidlVersion, kAidlVersion3);
 
     // set callback
     mCallback = SharedRefBase::make<TunerCallbackImpl>(mAidlVersion);
@@ -1122,12 +1153,22 @@
  * Verifies that:
  * - startProgramListUpdates either succeeds or returns NOT_SUPPORTED;
  * - the complete list is fetched within kProgramListScanTimeoutMs;
- * - stopProgramListUpdates does not crash.
+ * - stopProgramListUpdates does not crash;
+ * - metadata of program info in the program list is valid;
+ * - alert message is valid if it exists in the program list.
  */
 TEST_P(BroadcastRadioHalTest, GetProgramListFromEmptyFilter) {
     LOG(DEBUG) << "GetProgramListFromEmptyFilter Test";
 
-    getProgramList();
+    std::optional<bcutils::ProgramInfoSet> completeList = getProgramList();
+
+    if (!completeList || mAidlVersion < kAidlVersion3) {
+        return;
+    }
+    for (const auto& program : *completeList) {
+        validateMetadata(program, mAidlVersion);
+        validateAlert(program, mAidlVersion);
+    }
 }
 
 /**
diff --git a/compatibility_matrices/compatibility_matrix.202504.xml b/compatibility_matrices/compatibility_matrix.202504.xml
index 349496a..607234b 100644
--- a/compatibility_matrices/compatibility_matrix.202504.xml
+++ b/compatibility_matrices/compatibility_matrix.202504.xml
@@ -163,7 +163,7 @@
     </hal>
     <hal format="aidl">
         <name>android.hardware.broadcastradio</name>
-        <version>1-2</version>
+        <version>1-3</version>
         <interface>
             <name>IBroadcastRadio</name>
             <regex-instance>.*</regex-instance>