diff --git a/features/move-before.yml b/features/move-before.yml
index 57c116af414..c663d7e0604 100644
--- a/features/move-before.yml
+++ b/features/move-before.yml
@@ -1,8 +1,11 @@
 name: moveBefore()
 description: The `moveBefore()` DOM method relocates a node while preserving its state. For example, you can move the active element without losing focus, move an animated element without resetting the animation, or move an iframe without reloading its content.
-spec: https://github.com/whatwg/dom/pull/1307
+spec:
+  - https://dom.spec.whatwg.org/#dom-parentnode-movebefore
+  - https://html.spec.whatwg.org/multipage/custom-elements.html#preserving-custom-element-state-when-moved
 group: dom
 compat_features:
+  - api.CustomElementRegistry.define.connectedMoveCallback_lifecycle_callback
   - api.Document.moveBefore
   - api.DocumentFragment.moveBefore
   - api.Element.moveBefore
diff --git a/features/move-before.yml.dist b/features/move-before.yml.dist
index f65f65cf0c0..85768ddd5cd 100644
--- a/features/move-before.yml.dist
+++ b/features/move-before.yml.dist
@@ -8,6 +8,7 @@ status:
     chrome_android: "133"
     edge: "133"
 compat_features:
+  - api.CustomElementRegistry.define.connectedMoveCallback_lifecycle_callback
   - api.Document.moveBefore
   - api.DocumentFragment.moveBefore
   - api.Element.moveBefore
diff --git a/scripts/specs.ts b/scripts/specs.ts
index e9806c9d649..65604d0a0c0 100644
--- a/scripts/specs.ts
+++ b/scripts/specs.ts
@@ -121,10 +121,6 @@ const defaultAllowlist: allowlistItem[] = [
         "https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/DocumentSubtitle/explainer.md",
         "Allowed because this is where the application-title meta tag is spec'd at the moment. Remove when https://github.com/whatwg/html/issues/8909 is fixed."
     ],
-    [
-        "https://github.com/whatwg/dom/pull/1307",
-        "This is only place moveBefore() is spec'd. Remove this exception when https://github.com/whatwg/dom/pull/1307 merges."
-    ],
     [
         "https://www.w3.org/TR/2018/SPSD-html5-20180327/embedded-content-0.html#synchronising-multiple-media-elements",
         "Allowed for the mediacontroller feature. This is the superseded HTML5 spec that still contains MediaController."