diff --git a/ARIA/apg/about/about.md b/ARIA/apg/about/about.md
index ff75c1cb1..3946650dc 100644
--- a/ARIA/apg/about/about.md
+++ b/ARIA/apg/about/about.md
@@ -94,6 +94,15 @@ lang: en
             <a href="related-specifications/">Related Specifications</a>.
           </p>
         </li>
+        <li>
+          <h2><a href="at-support-tables/">Assistive Technology Support Tables</a></h2>
+          <p>
+            Pages that provide example implementations of APG patterns also, when available,  provide a summary of assistive technology support of the ARIA used in those examples.
+            Learn how to interpret and use data in the
+            <a href="at-support-tables/">Assistive Technology Support Tables</a>.
+          </p>
+        </li>
+
         <li>
           <h2><a href="coverage-and-quality/">Coverage and Quality Report</a></h2>
           <p>
diff --git a/ARIA/apg/about/at-support-tables/at-support-tables.md b/ARIA/apg/about/at-support-tables/at-support-tables.md
new file mode 100644
index 000000000..980893aba
--- /dev/null
+++ b/ARIA/apg/about/at-support-tables/at-support-tables.md
@@ -0,0 +1,85 @@
+---
+# This file was generated by scripts/pre-build/library/formatForJekyll.js
+title: "Introduction"
+ref: /ARIA/apg/about/at-support-tables/
+
+github:
+  repository: w3c/aria-practices
+  branch: main
+  path: content/about/at-support-tables/at-support-tables.html
+feedbackmail: public-aria-practices@w3.org
+permalink: /ARIA/apg/about/at-support-tables/
+
+sidebar: true
+
+
+
+# Context here: https://github.com/w3c/wai-aria-practices/issues/31
+type_of_guidance: APG
+
+lang: en
+---
+<meta charset="UTF-8" />
+<meta content="width=device-width, initial-scale=1.0" name="viewport" />
+<title>AT Support Tables</title>
+
+<script src="../../../../content-assets/wai-aria-practices/shared/js/highlight.pack.js"></script>
+<script src="../../../../content-assets/wai-aria-practices/shared/js/app.js"></script>
+
+
+<link 
+  rel="stylesheet"
+  href="{{ '/content-assets/wai-aria-practices/styles.css' | relative_url }}"
+>
+<!-- Code highlighting styles -->
+<link 
+  rel="stylesheet"
+  href="{{ '/content-assets/wai-aria-practices/shared/css/github.css' | relative_url }}"
+>
+
+<script>
+const addBodyClass = undefined;
+const enableSidebar = true;
+if (addBodyClass) document.body.classList.add(addBodyClass);
+if (enableSidebar) document.body.classList.add('has-sidebar');
+</script>
+    
+
+<script>
+    const parentPage = window.location.pathname.match(
+      /\/(patterns|practices|about)\//
+    )?.[1];
+    if (parentPage) {
+      const parentHref = 'a[href*="' + parentPage + '"]';
+      document.querySelector(parentHref).classList.add('active');
+    }
+  </script>
+<div>
+
+    <div>
+      
+      <p>
+        As reports on  assistive technology interoperability are made available by the
+        ARIA and Assistive Technologies project,
+        the APG Task Force adds a summary of assistive technology support to the relevant pages showing example implementations of APG patterns.
+        This page explains how to interpret and use the assistive technology support summaries.
+      </p>
+
+      <section id="purpose">
+        <h2>Purpose of AT Support Tables</h2>
+          <p>...</p>
+      </section>
+
+      <section>
+        <h2>next section</h2>
+        <p>...</p>
+      </section>
+      
+    </div>
+  
+</div>
+<script
+  src="{{ '/content-assets/wai-aria-practices/shared/js/skipto.js' | relative_url }}"
+  data-skipto="colorTheme:aria; displayOption:popup; containerElement:div"
+></script>
+
diff --git a/_external/aria-practices b/_external/aria-practices
index 63a610884..5f0b3ef72 160000
--- a/_external/aria-practices
+++ b/_external/aria-practices
@@ -1 +1 @@
-Subproject commit 63a6108842e42de87988614eb8f3ba4bfbd92a37
+Subproject commit 5f0b3ef728902b6b417c113b8bf770b495631681