diff --git a/overview/3gpp-compliance-4g.rst b/overview/3gpp-compliance-4g.rst
index b9e1bfe..abdfa5b 100644
--- a/overview/3gpp-compliance-4g.rst
+++ b/overview/3gpp-compliance-4g.rst
@@ -1,3 +1,7 @@
+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
 .. _4g-compliance:
 
 4G - 3GPP Release Compliance