diff --git a/android/Torchchat/app/src/test/java/org/pytorch/torchchat/ExampleUnitTest.java b/android/Torchchat/app/src/test/java/org/pytorch/torchchat/ExampleUnitTest.java
index 2c2fbc93e..8fbffcf35 100644
--- a/android/Torchchat/app/src/test/java/org/pytorch/torchchat/ExampleUnitTest.java
+++ b/android/Torchchat/app/src/test/java/org/pytorch/torchchat/ExampleUnitTest.java
@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 package org.pytorch.torchchat;
 
 import org.junit.Test;
diff --git a/browser/browser.py b/browser/browser.py
index 613146d8b..5c3fca797 100644
--- a/browser/browser.py
+++ b/browser/browser.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 import subprocess
 import sys
 
diff --git a/runner/aoti.cmake b/runner/aoti.cmake
index 2ae9a4079..156e9bcce 100644
--- a/runner/aoti.cmake
+++ b/runner/aoti.cmake
@@ -1,3 +1,10 @@
+#!/bin/bash
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
 cmake_minimum_required(VERSION 3.24)
 set(CMAKE_CXX_STANDARD 17)
 IF(DEFINED ENV{TORCHCHAT_ROOT})
diff --git a/runner/et.cmake b/runner/et.cmake
index 6b233ae9c..7fc16b1f2 100644
--- a/runner/et.cmake
+++ b/runner/et.cmake
@@ -1,3 +1,10 @@
+#!/bin/bash
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
 cmake_minimum_required(VERSION 3.24)
 set(CMAKE_CXX_STANDARD 17)
 
diff --git a/scripts/prepare.sh b/scripts/prepare.sh
index c3a74e6eb..b3bec8f14 100755
--- a/scripts/prepare.sh
+++ b/scripts/prepare.sh
@@ -1 +1,7 @@
-python3 scripts/download.py --repo-id $1 && python3 scripts/convert_hf_checkpoint.py --checkpoint-dir checkpoints/$1 
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
+python3 scripts/download.py --repo-id $1 && python3 scripts/convert_hf_checkpoint.py --checkpoint-dir checkpoints/$1
diff --git a/scripts/test_flow.sh b/scripts/test_flow.sh
index 9cc25b186..1813612cd 100755
--- a/scripts/test_flow.sh
+++ b/scripts/test_flow.sh
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 export MODEL_REPO=meta-llama/Llama-2-7b-chat-hf
 rm -r checkpoints/$MODEL_REPO
 python3 scripts/download.py --repo-id $MODEL_REPO
diff --git a/unsupported/llama2.c/runner-et/run.cpp b/unsupported/llama2.c/runner-et/run.cpp
index 64d38fa0a..a3fa6996d 100644
--- a/unsupported/llama2.c/runner-et/run.cpp
+++ b/unsupported/llama2.c/runner-et/run.cpp
@@ -1,3 +1,11 @@
+/* 
+* Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+*/
+
 /* Inference for Llama-2 Transformer model in pure C */
 /* this uses the same logic regardless of AOTI OR ET */
 /* but requires different data types - ATen vs ETen  */
diff --git a/utils/measure_time.py b/utils/measure_time.py
index 874061e46..89ec2d091 100644
--- a/utils/measure_time.py
+++ b/utils/measure_time.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 from time import perf_counter
 from typing import Optional