diff --git a/techniques/failures/F77.html b/techniques/failures/F77.html
index b1d0faf06d..e4c53848e9 100644
--- a/techniques/failures/F77.html
+++ b/techniques/failures/F77.html
@@ -35,6 +35,7 @@
       </section>
    </section><section id="related"><h2>Related Techniques</h2><ul>
       <li><a href="../general/G108">G108</a></li>
+      <li><a href="../html/H75">H75</a></li>
    </ul></section><section id="resources"><h2>Resources</h2>
       
          <ul>
diff --git a/techniques/html/H75.html b/techniques/html/H75.html
new file mode 100644
index 0000000000..7d945b7aef
--- /dev/null
+++ b/techniques/html/H75.html
@@ -0,0 +1,80 @@
+---
+obsoleteMessage: This failure pertains to 4.1.1 Parsing, which was removed as of WCAG 2.2.
+obsoleteSince: 22
+---
+<!DOCTYPE html><html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><title>Ensuring that Web pages are well-formed</title><link rel="stylesheet" type="text/css" href="../../css/sources.css" class="remove"></link></head><body><h1>Ensuring that Web pages are well-formed</h1><section class="meta"><p class="id">ID: H75</p><p class="technology">Technology: html</p><p class="type">Type: Technique</p></section><section id="applicability"><h2>When to Use</h2>
+      <p> Any XML-based markup languages. </p>
+   </section><section id="description"><h2>Description</h2>
+      <p> The objective of this technique is to avoid key errors that are known to cause
+            problems for assistive technologies when they are trying to parse contents.
+            Well-formedness is checked by parsing the document with a conforming XML parser and
+            checking if the validation report mentions well-formedness errors. Every conforming XML
+            parser is required to check well-formedness and stop normal processing when a
+            well-formedness error is found (a conforming XML parser does not need to support
+            validation).</p>
+   </section><section id="examples"><h2>Examples</h2>
+      <section class="example">
+         <h3></h3>
+         
+            <p>XML files include a document type declaration, a xsi:schemaLocation attribute or
+                other type of reference to a schema. The developer can use off-line or online
+                validators, an XML editor or an IDE with XML support (see Resources below) to check
+                well-formedness. </p>
+         
+      </section>
+      <section class="example">
+         <h3></h3>
+         
+            <p> When XML files do not include a document type declaration, a xsi:schemaLocation
+                attribute or a processing instruction referencing a schema even though there is a
+                schema for them, the relevant schema is specified by a command line instruction, a
+                user dialog or a configuration file, and the XML files are checked against the
+                schema.</p>
+         
+      </section>
+      <section class="example">
+         <h3></h3>
+         
+            <p>When XML files do not include a document type declaration, a xsi:schemaLocation
+                attribute or a processing instruction referencing a schema even though there is a
+                schema for them, the namespace is dereferenced to retrieve a schema document or
+                resource directory (Resource Directory Description Language: <a href="http://www.rddl.org/">RDDL</a>), and the XML files are checked against the
+                schema.</p>
+         
+      </section>
+      <section class="example">
+         <h3></h3>
+         
+            <p>When a Website generates XML dynamically instead of serving only static documents,
+                a developer can use <a href="http://xmlunit.sourceforge.net/">XMLUnit</a>, <a href="http://xmltestsuite.sourceforge.net/">XML Test Suite</a> or a similar
+                framework to test the generated XML code. </p>
+         
+      </section>
+   </section><section id="tests"><h2>Tests</h2>
+      <section class="procedure"><h3>Procedure</h3>
+         <ol>
+            <li> Load each file into a validating XML parser. </li>
+            <li> Check that there are no well-formedness errors. </li>
+         </ol>
+      </section>
+      <section class="results"><h3>Expected Results</h3>
+         <p>Step 2 is true.</p>
+      </section>
+   </section><section id="related"><h2>Related Techniques</h2></section><section id="resources"><h2>Resources</h2>
+      
+         <ul>
+            <li>
+									         <a href="https://www.w3.org/TR/2004/REC-xml-20040204/Overview.html#sec-well-formed">Well-Formed XML Documents</a> in Extensible Markup Language (XML) 1.0 (Third
+                  Edition), W3C Recommendation 04 February 2004. </li>
+            <li>
+									         <a href="https://www.w3.org/TR/2004/REC-xml11-20040204/#sec-well-formed">Well-Formed XML Documents</a> in Extensible Markup Language (XML) 1.1, W3C
+                  Recommendation 04 February 2004. </li>
+            <li>
+									         <a href="https://www.w3.org/TR/REC-xml/#wf-entities">4.3.2 Well-Formed Parsed
+                    Entities</a> in Extensible Markup Language (XML) 1.1, W3C Recommendation 04
+                  February 2004.</li>
+         </ul>
+         <p> For other resources, see <a href="https://www.w3.org/WAI/WCAG21/Techniques/general/G134">Validating Web
+              pages</a>. </p>
+      
+   </section></body></html>
diff --git a/techniques/html/H88.html b/techniques/html/H88.html
index 89fc224611..09c123d88d 100644
--- a/techniques/html/H88.html
+++ b/techniques/html/H88.html
@@ -53,6 +53,7 @@ <h3>Expected Results</h3>
 		<h2>Related Techniques</h2>
 		<ul>
       <li><a href="../html/H74">H74</a></li>
+      <li><a href="../html/H75">H75</a></li>
    </ul></section><section id="resources"><h2>Resources</h2>
       
          <p>Refer to the resources section of <a href="https://www.w3.org/WAI/WCAG21/Techniques/general/G134">Validating Web
diff --git a/understanding/20/parsing.html b/understanding/20/parsing.html
index 3f83699b1f..ae72ef4d58 100644
--- a/understanding/20/parsing.html
+++ b/understanding/20/parsing.html
@@ -158,6 +158,14 @@ <h3>Sufficient Techniques for Parsing</h3>
                      										           
                   </li>
                   
+                  <li>
+                     											             
+                     <a href="https://www.w3.org/WAI/WCAG21/Techniques/html/H75" class="html">Ensuring that 
+                        Web pages are well-formed
+                     </a>
+                     										           
+                  </li>
+                  
                </ul>
                
             </li>
