diff --git a/ControlledDocumentList.html b/ControlledDocumentList.html
index 74d0567..5b7512e 100644
--- a/ControlledDocumentList.html
+++ b/ControlledDocumentList.html
@@ -59,7 +59,9 @@ Status: <i>WIP </i><br><br>
 <p>
 The Configuration Control Specification (CCS) mandates
 the creation and management of a list of all documents
-controlled for formal audit and policy purposes.
+controlled for formal audit and policy purposes
+(<a href="https://svn.cacert.org/CAcert/Policies/ConfigurationControlSpecification.html#2.1">
+CCS 2.1</a>).
 This list is located at
 <a href="https://svn.cacert.org/CAcert/Policies/ControlledDocumentList.html">
 https://svn.cacert.org/CAcert/Policies/ControlledDocumentList.html</a>.