diff --git a/core/api/current.txt b/core/api/current.txt
index 99e4063..17e7d7a 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -19346,7 +19346,7 @@
   public class BiometricManager {
     method @Deprecated @RequiresPermission(android.Manifest.permission.USE_BIOMETRIC) public int canAuthenticate();
     method @RequiresPermission(android.Manifest.permission.USE_BIOMETRIC) public int canAuthenticate(int);
-    method @FlaggedApi("android.hardware.biometrics.last_authentication_time") @RequiresPermission(android.Manifest.permission.USE_BIOMETRIC) public long getLastAuthenticationTime(int);
+    method @RequiresPermission(android.Manifest.permission.USE_BIOMETRIC) public long getLastAuthenticationTime(int);
     method @NonNull @RequiresPermission(android.Manifest.permission.USE_BIOMETRIC) public android.hardware.biometrics.BiometricManager.Strings getStrings(int);
     field public static final int BIOMETRIC_ERROR_HW_UNAVAILABLE = 1; // 0x1
     field @FlaggedApi("android.hardware.biometrics.identity_check_api") public static final int BIOMETRIC_ERROR_IDENTITY_CHECK_NOT_ACTIVE = 20; // 0x14
@@ -19354,7 +19354,7 @@
     field @FlaggedApi("android.hardware.biometrics.identity_check_api") public static final int BIOMETRIC_ERROR_NOT_ENABLED_FOR_APPS = 21; // 0x15
     field public static final int BIOMETRIC_ERROR_NO_HARDWARE = 12; // 0xc
     field public static final int BIOMETRIC_ERROR_SECURITY_UPDATE_REQUIRED = 15; // 0xf
-    field @FlaggedApi("android.hardware.biometrics.last_authentication_time") public static final long BIOMETRIC_NO_AUTHENTICATION = -1L; // 0xffffffffffffffffL
+    field public static final long BIOMETRIC_NO_AUTHENTICATION = -1L; // 0xffffffffffffffffL
     field public static final int BIOMETRIC_SUCCESS = 0; // 0x0
   }
 
@@ -19407,7 +19407,7 @@
     field public static final int BIOMETRIC_ERROR_UNABLE_TO_PROCESS = 2; // 0x2
     field public static final int BIOMETRIC_ERROR_USER_CANCELED = 10; // 0xa
     field public static final int BIOMETRIC_ERROR_VENDOR = 8; // 0x8
-    field @FlaggedApi("android.hardware.biometrics.last_authentication_time") public static final long BIOMETRIC_NO_AUTHENTICATION = -1L; // 0xffffffffffffffffL
+    field public static final long BIOMETRIC_NO_AUTHENTICATION = -1L; // 0xffffffffffffffffL
   }
 
   public abstract static class BiometricPrompt.AuthenticationCallback {
diff --git a/core/java/android/hardware/biometrics/BiometricConstants.java b/core/java/android/hardware/biometrics/BiometricConstants.java
index 875adbd..7dc6afb 100644
--- a/core/java/android/hardware/biometrics/BiometricConstants.java
+++ b/core/java/android/hardware/biometrics/BiometricConstants.java
@@ -334,6 +334,5 @@
      * Returned from {@link BiometricManager#getLastAuthenticationTime(int)} when there has
      * been no successful authentication for the given authenticator since boot.
      */
-    @FlaggedApi(Flags.FLAG_LAST_AUTHENTICATION_TIME)
     long BIOMETRIC_NO_AUTHENTICATION = -1;
 }
diff --git a/core/java/android/hardware/biometrics/BiometricManager.java b/core/java/android/hardware/biometrics/BiometricManager.java
index c690c67..cefe20c 100644
--- a/core/java/android/hardware/biometrics/BiometricManager.java
+++ b/core/java/android/hardware/biometrics/BiometricManager.java
@@ -116,7 +116,6 @@
      * Returned from {@link BiometricManager#getLastAuthenticationTime(int)} when no matching
      * successful authentication has been performed since boot.
      */
-    @FlaggedApi(Flags.FLAG_LAST_AUTHENTICATION_TIME)
     public static final long BIOMETRIC_NO_AUTHENTICATION =
             BiometricConstants.BIOMETRIC_NO_AUTHENTICATION;
 
@@ -777,7 +776,6 @@
      */
     @RequiresPermission(USE_BIOMETRIC)
     @ElapsedRealtimeLong
-    @FlaggedApi(Flags.FLAG_LAST_AUTHENTICATION_TIME)
     public long getLastAuthenticationTime(
             @BiometricManager.Authenticators.Types int authenticators) {
         if (authenticators == 0
diff --git a/core/java/android/hardware/biometrics/flags.aconfig b/core/java/android/hardware/biometrics/flags.aconfig
index 73b6417..4815f3e 100644
--- a/core/java/android/hardware/biometrics/flags.aconfig
+++ b/core/java/android/hardware/biometrics/flags.aconfig
@@ -2,14 +2,6 @@
 container: "system"
 
 flag {
-    name: "last_authentication_time"
-    is_exported: true
-    namespace: "wallet_integration"
-    description: "Feature flag for adding getLastAuthenticationTime API to BiometricManager"
-    bug: "301979982"
-}
-
-flag {
   name: "add_key_agreement_crypto_object"
   is_exported: true
   namespace: "biometrics"
diff --git a/services/core/java/com/android/server/biometrics/AuthService.java b/services/core/java/com/android/server/biometrics/AuthService.java
index 2d802b2..b6768c9 100644
--- a/services/core/java/com/android/server/biometrics/AuthService.java
+++ b/services/core/java/com/android/server/biometrics/AuthService.java
@@ -38,7 +38,6 @@
 import android.hardware.biometrics.BiometricAuthenticator;
 import android.hardware.biometrics.BiometricManager;
 import android.hardware.biometrics.ComponentInfoInternal;
-import android.hardware.biometrics.Flags;
 import android.hardware.biometrics.IAuthService;
 import android.hardware.biometrics.IBiometricEnabledOnKeyguardCallback;
 import android.hardware.biometrics.IBiometricService;
@@ -399,12 +398,6 @@
 
             final long identity = Binder.clearCallingIdentity();
             try {
-                // We can't do this above because we need the READ_DEVICE_CONFIG permission, which
-                // the calling user may not possess.
-                if (!Flags.lastAuthenticationTime()) {
-                    throw new UnsupportedOperationException();
-                }
-
                 return mBiometricService.getLastAuthenticationTime(userId, authenticators);
             } finally {
                 Binder.restoreCallingIdentity(identity);
diff --git a/services/core/java/com/android/server/biometrics/BiometricService.java b/services/core/java/com/android/server/biometrics/BiometricService.java
index 15b1f22..a5058dd 100644
--- a/services/core/java/com/android/server/biometrics/BiometricService.java
+++ b/services/core/java/com/android/server/biometrics/BiometricService.java
@@ -44,7 +44,6 @@
 import android.hardware.biometrics.BiometricConstants;
 import android.hardware.biometrics.BiometricPrompt;
 import android.hardware.biometrics.BiometricStateListener;
-import android.hardware.biometrics.Flags;
 import android.hardware.biometrics.IBiometricAuthenticator;
 import android.hardware.biometrics.IBiometricEnabledOnKeyguardCallback;
 import android.hardware.biometrics.IBiometricSensorReceiver;
@@ -906,10 +905,6 @@
                 int userId, @Authenticators.Types int authenticators) {
             super.getLastAuthenticationTime_enforcePermission();
 
-            if (!Flags.lastAuthenticationTime()) {
-                throw new UnsupportedOperationException();
-            }
-
             Slogf.d(TAG, "getLastAuthenticationTime(userId=%d, authenticators=0x%x)",
                     userId, authenticators);
 
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/AuthServiceTest.java b/services/tests/servicestests/src/com/android/server/biometrics/AuthServiceTest.java
index 605fed0..c7efa31 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/AuthServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/AuthServiceTest.java
@@ -45,7 +45,6 @@
 import android.content.res.Resources;
 import android.hardware.biometrics.AuthenticationStateListener;
 import android.hardware.biometrics.BiometricManager;
-import android.hardware.biometrics.Flags;
 import android.hardware.biometrics.IBiometricEnabledOnKeyguardCallback;
 import android.hardware.biometrics.IBiometricService;
 import android.hardware.biometrics.IBiometricServiceReceiver;
@@ -504,23 +503,9 @@
                 eq(callback));
     }
 
-    @Test(expected = UnsupportedOperationException.class)
-    public void testGetLastAuthenticationTime_flaggedOff_throwsUnsupportedOperationException()
-            throws Exception {
-        mSetFlagsRule.disableFlags(Flags.FLAG_LAST_AUTHENTICATION_TIME);
-        setInternalAndTestBiometricPermissions(mContext, true /* hasPermission */);
-
-        mAuthService = new AuthService(mContext, mInjector);
-        mAuthService.onStart();
-
-        mAuthService.mImpl.getLastAuthenticationTime(0,
-                BiometricManager.Authenticators.BIOMETRIC_STRONG);
-    }
-
     @Test
-    public void testGetLastAuthenticationTime_flaggedOn_callsBiometricService()
+    public void testGetLastAuthenticationTime_callsBiometricService()
             throws Exception {
-        mSetFlagsRule.enableFlags(Flags.FLAG_LAST_AUTHENTICATION_TIME);
         setInternalAndTestBiometricPermissions(mContext, true /* hasPermission */);
 
         mAuthService = new AuthService(mContext, mInjector);
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/BiometricServiceTest.java b/services/tests/servicestests/src/com/android/server/biometrics/BiometricServiceTest.java
index acca4cc..9918a9a 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/BiometricServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/BiometricServiceTest.java
@@ -2014,20 +2014,9 @@
         verifyNoMoreInteractions(callback);
     }
 
-    @Test(expected = UnsupportedOperationException.class)
-    public void testGetLastAuthenticationTime_flagOff_throwsUnsupportedOperationException()
-            throws RemoteException {
-        mSetFlagsRule.disableFlags(Flags.FLAG_LAST_AUTHENTICATION_TIME);
-
-        mBiometricService = new BiometricService(mContext, mInjector, mBiometricHandlerProvider);
-        mBiometricService.mImpl.getLastAuthenticationTime(0, Authenticators.BIOMETRIC_STRONG);
-    }
-
     @Test
-    public void testGetLastAuthenticationTime_flagOn_callsKeystoreAuthorization()
+    public void testGetLastAuthenticationTime_callsKeystoreAuthorization()
             throws RemoteException {
-        mSetFlagsRule.enableFlags(Flags.FLAG_LAST_AUTHENTICATION_TIME);
-
         final int[] hardwareAuthenticators = new int[] {
                 HardwareAuthenticatorType.PASSWORD,
                 HardwareAuthenticatorType.FINGERPRINT