diff --git a/configuration/chassis.rst b/configuration/chassis.rst
index 9181a6a..2a8a317 100644
--- a/configuration/chassis.rst
+++ b/configuration/chassis.rst
@@ -1,3 +1,6 @@
+.. SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+.. SPDX-License-Identifier: Apache-2.0
+
 .. _stratum_chassis_config:
 
 Stratum Chassis Configuration