--- a/semantics/prov-sem.html	Fri Apr 12 13:11:06 2013 +0100
+++ b/semantics/prov-sem.html	Fri Apr 12 13:23:53 2013 +0100
@@ -1034,6 +1034,15 @@
 <li> <a href="http://www.w3.org/TR/2013/NOTE-prov-links-20130430/">PROV-LINKS</a> (Note) introduces a mechanism to link across bundles [[PROV-LINKS]].</li>
 </ul>
 
+<h4>Implementations Encouraged</h4>
+<p>
+The Provenance Working Group encourages implementations that make use
+of or extend the semantics in this document.
+Although work on this document by the Provenance Working Group is complete, 
+errors may be recorded in the  <a href="http://www.w3.org/2011/prov/errata.html">errata</a> or and these may be addressed in future revisions. 
+</p>
+
+<h4>Please Send Comments</h4>
 
 </section>