diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..05a4aac
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,27 @@
+# How to Contribute
+
+We'd love to accept your patches and contributions to this project. There are
+just a few small guidelines you need to follow.
+
+## Contributor License Agreement
+
+Contributions to this project must be accompanied by a Contributor License
+Agreement. You (or your employer) retain the copyright to your contribution;
+this simply gives us permission to use and redistribute your contributions as
+part of the project. Head over to <https://cla.developers.google.com/> to see
+your current agreements on file or to sign a new one.
+
+You generally only need to submit a CLA once, so if you've already submitted one
+(even if it was for a different project), you probably don't need to do it
+again.
+
+## Code reviews
+
+All submissions, including submissions by project members, require review. We
+use Gerrit for this pull requests for this purpose. Consult
+[Coral Gerrit](https://coral-review.googlesource.com/) for more information.
+
+## Community Guidelines
+
+This project follows
+[Google's Open Source Community Guidelines](https://opensource.google.com/conduct/).
diff --git a/coral-enviro-devicetree/coral-enviro-board-overlay.dts b/coral-enviro-devicetree/coral-enviro-board-overlay.dts
index 52d6a97..7a460bc 100644
--- a/coral-enviro-devicetree/coral-enviro-board-overlay.dts
+++ b/coral-enviro-devicetree/coral-enviro-board-overlay.dts
@@ -1,3 +1,21 @@
+/*
+ * coral-enviro-board-overlay.dts
+ * Device Tree Overlay to support Coral Environmental Sensor Board
+ *
+ * Copyright (C) 2019 Google LLC
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
 /dts-v1/;
 /plugin/;
 
diff --git a/python/coral-cloudiot/LICENSE.txt b/python/coral-cloudiot/LICENSE
similarity index 89%
rename from python/coral-cloudiot/LICENSE.txt
rename to python/coral-cloudiot/LICENSE
index f433b1a..f367dfb 100644
--- a/python/coral-cloudiot/LICENSE.txt
+++ b/python/coral-cloudiot/LICENSE
@@ -175,3 +175,28 @@
       of your accepting any such warranty or additional liability.
 
    END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2019 Google LLC
+
+   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.
diff --git a/python/coral-cloudiot/coral/cloudiot/__init__.py b/python/coral-cloudiot/coral/cloudiot/__init__.py
index e69de29..e229742 100644
--- a/python/coral-cloudiot/coral/cloudiot/__init__.py
+++ b/python/coral-cloudiot/coral/cloudiot/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2019 Google LLC
+#
+# 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.
+
diff --git a/python/coral-cloudiot/setup.py b/python/coral-cloudiot/setup.py
index 797381d..70cab21 100644
--- a/python/coral-cloudiot/setup.py
+++ b/python/coral-cloudiot/setup.py
@@ -1,3 +1,17 @@
+# Copyright 2019 Google LLC
+#
+# 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.
+
 from setuptools import setup, find_packages
 
 setup(
diff --git a/python/coral-enviro/LICENSE.txt b/python/coral-enviro/LICENSE
similarity index 89%
rename from python/coral-enviro/LICENSE.txt
rename to python/coral-enviro/LICENSE
index f433b1a..f367dfb 100644
--- a/python/coral-enviro/LICENSE.txt
+++ b/python/coral-enviro/LICENSE
@@ -175,3 +175,28 @@
       of your accepting any such warranty or additional liability.
 
    END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2019 Google LLC
+
+   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.
diff --git a/python/coral-enviro/coral/enviro/__init__.py b/python/coral-enviro/coral/enviro/__init__.py
index e69de29..e229742 100644
--- a/python/coral-enviro/coral/enviro/__init__.py
+++ b/python/coral-enviro/coral/enviro/__init__.py
@@ -0,0 +1,14 @@
+# Copyright 2019 Google LLC
+#
+# 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.
+
diff --git a/python/coral-enviro/setup.py b/python/coral-enviro/setup.py
index 5de3e79..2992ca3 100644
--- a/python/coral-enviro/setup.py
+++ b/python/coral-enviro/setup.py
@@ -1,3 +1,17 @@
+# Copyright 2019 Google LLC
+#
+# 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.
+
 from setuptools import setup, find_packages
 
 setup(