diff --git a/application/templates/pages/guidance/specifications/index.html b/application/templates/pages/guidance/specifications/index.html
index b64cca12..5f1b0f96 100644
--- a/application/templates/pages/guidance/specifications/index.html
+++ b/application/templates/pages/guidance/specifications/index.html
@@ -17,7 +17,9 @@
 
   <ul class="govuk-list govuk-list--spaced">
     <li><a href="article-4-direction">Article 4 Direction data</a></li>
+    <li><a href="https://www.gov.uk/government/publications/brownfield-land-registers-data-standard/publish-your-brownfield-land-data">Brownfield land data</a></li>
     <li><a href="conservation-area">Conservation area data</a></li>
+    <li><a href="https://www.gov.uk/guidance/publish-your-developer-contributions-data">Developer contributions data</a></li>
     <li><a href="listed-building">Listed building data</a></li>
     <li><a href="tree-preservation-order">Tree preservation order data</a></li>
   </ul>