diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/defaults/DefaultTurboModuleManagerDelegate.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/defaults/DefaultTurboModuleManagerDelegate.kt
index c6f9446ada5b..2c664ba97b9f 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/defaults/DefaultTurboModuleManagerDelegate.kt
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/defaults/DefaultTurboModuleManagerDelegate.kt
@@ -30,7 +30,7 @@ private constructor(
     cxxReactPackages: List<CxxReactPackage>,
 ) : ReactPackageTurboModuleManagerDelegate(context, packages, initHybrid(cxxReactPackages)) {
 
-  override fun initHybrid(): HybridData? {
+  override fun initHybrid(): HybridData {
     throw UnsupportedOperationException(
         "DefaultTurboModuleManagerDelegate.initHybrid() must never be called!")
   }
@@ -72,6 +72,6 @@ private constructor(
 
     @DoNotStrip
     @JvmStatic
-    external fun initHybrid(cxxReactPackages: List<CxxReactPackage>): HybridData?
+    external fun initHybrid(cxxReactPackages: List<CxxReactPackage>): HybridData
   }
 }
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/AndroidChoreographerProvider.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/AndroidChoreographerProvider.java
index a3b3de670d9d..745be44af60b 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/AndroidChoreographerProvider.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/AndroidChoreographerProvider.java
@@ -7,9 +7,11 @@
 
 package com.facebook.react.internal;
 
+import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.react.bridge.UiThreadUtil;
 
 /** An implementation of ChoreographerProvider that directly uses android.view.Choreographer. */
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public final class AndroidChoreographerProvider implements ChoreographerProvider {
 
   public static final class AndroidChoreographer implements ChoreographerProvider.Choreographer {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/turbomodule/core/TurboModuleManagerDelegate.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/turbomodule/core/TurboModuleManagerDelegate.java
index c80bd0e6e10a..9fe0fdb630d3 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/turbomodule/core/TurboModuleManagerDelegate.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/turbomodule/core/TurboModuleManagerDelegate.java
@@ -8,6 +8,7 @@
 package com.facebook.react.internal.turbomodule.core;
 
 import androidx.annotation.Nullable;
+import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.jni.HybridData;
 import com.facebook.proguard.annotations.DoNotStrip;
 import com.facebook.react.bridge.NativeModule;
@@ -15,6 +16,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public abstract class TurboModuleManagerDelegate {
   @DoNotStrip
   @SuppressWarnings("unused")
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/turbomodule/core/TurboModulePerfLogger.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/turbomodule/core/TurboModulePerfLogger.java
index e1c512cc3eac..9a9f198ba624 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/turbomodule/core/TurboModulePerfLogger.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/turbomodule/core/TurboModulePerfLogger.java
@@ -7,10 +7,12 @@
 
 package com.facebook.react.internal.turbomodule.core;
 
+import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.proguard.annotations.DoNotStrip;
 import com.facebook.react.perflogger.NativeModulePerfLogger;
 import javax.annotation.Nullable;
 
+@Nullsafe(Nullsafe.Mode.LOCAL)
 @DoNotStrip
 class TurboModulePerfLogger {