diff --git a/TestON/tests/CHO/CHOtest/dependencies/topoChordal.py b/TestON/tests/CHO/CHOtest/dependencies/topoChordal.py
index 542c3ed..49e3bfe 100755
--- a/TestON/tests/CHO/CHOtest/dependencies/topoChordal.py
+++ b/TestON/tests/CHO/CHOtest/dependencies/topoChordal.py
@@ -1,6 +1,26 @@
 #!/usr/bin/python
+
 """
+Copyright 2015 Open Networking Foundation (ONF)
+
+Please refer questions to either the onos test mailing list at <onos-test@onosproject.org>,
+the System Testing Plans and Results wiki page at <https://wiki.onosproject.org/x/voMg>,
+or the System Testing Guide page at <https://wiki.onosproject.org/x/WYQg>
+
+    TestON 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.
+
+    TestON 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.
+
+    You should have received a copy of the GNU General Public License
+    along with TestON.  If not, see <http://www.gnu.org/licenses/>.
 """
+
 from mininet.topo import Topo
 from mininet.net import Mininet
 from mininet.node import RemoteController