diff --git a/index.html b/index.html
index 4b271d9f..2eaf5a7b 100644
--- a/index.html
+++ b/index.html
@@ -956,6 +956,9 @@ <h3>
       sameOriginWithAncestors)</dfn> internal method MUST:
     </p>
     <ol class="algorithm">
+      <li>If the user agent doesn't support [=digital credential/presentation
+      requests=], throw {{"NotSupportedError"}} {{DOMException}}.
+      </li>
       <li>Let |global| be [=this=]'s [=relevant global object=].
       </li>
       <li>Let |document| be |global|'s [=associated `Document`=].
@@ -1011,12 +1014,12 @@ <h3>
     <p>
       When invoked, the <dfn class="export" data-dfn-for=
       "DigitalCredential">[[\Create]](origin, options,
-      sameOriginWithAncestors)</dfn> internal method, if the user agent doesn't
-      support issuance, call the default implementation of {{Credential}}'s
-      {{Credential/[[Create]](origin,options, sameOriginWithAncestors)}}
-      internal method with the same arguments. Otherwise:
+      sameOriginWithAncestors)</dfn> internal method:
     </p>
     <ol class="algorithm">
+      <li>If the user agent doesn't support [=digital credential/issuance
+      requests=], throw {{"NotSupportedError"}} {{DOMException}}.
+      </li>
       <li>Let |global| be [=this=]'s [=relevant global object=].
       </li>
       <li>Let |document| be |global|'s [=associated `Document`=].