diff --git a/java/com/google/gerrit/server/query/change/ChangeData.java b/java/com/google/gerrit/server/query/change/ChangeData.java
index 4086877..6e14a13 100644
--- a/java/com/google/gerrit/server/query/change/ChangeData.java
+++ b/java/com/google/gerrit/server/query/change/ChangeData.java
@@ -75,6 +75,8 @@
 import com.google.gerrit.server.change.PureRevert;
 import com.google.gerrit.server.config.AllUsersName;
 import com.google.gerrit.server.config.TrackingFooters;
+import com.google.gerrit.server.experiments.ExperimentFeatures;
+import com.google.gerrit.server.experiments.ExperimentFeaturesConstants;
 import com.google.gerrit.server.git.GitRepositoryManager;
 import com.google.gerrit.server.git.MergeUtil;
 import com.google.gerrit.server.notedb.ChangeNotes;
@@ -87,6 +89,7 @@
 import com.google.gerrit.server.project.NoSuchChangeException;
 import com.google.gerrit.server.project.ProjectCache;
 import com.google.gerrit.server.project.ProjectState;
+import com.google.gerrit.server.project.SubmitRequirementsAdapter;
 import com.google.gerrit.server.project.SubmitRequirementsEvaluator;
 import com.google.gerrit.server.project.SubmitRuleEvaluator;
 import com.google.gerrit.server.project.SubmitRuleOptions;
@@ -268,7 +271,7 @@
     ChangeData cd =
         new ChangeData(
             null, null, null, null, null, null, null, null, null, null, null, null, null, null,
-            null, null, project, id, null, null);
+            null, null, null, project, id, null, null);
     cd.currentPatchSet =
         PatchSet.builder()
             .id(PatchSet.id(id, currentPatchSetId))
@@ -286,6 +289,7 @@
   private final ChangeMessagesUtil cmUtil;
   private final ChangeNotes.Factory notesFactory;
   private final CommentsUtil commentsUtil;
+  private final ExperimentFeatures experimentFeatures;
   private final GitRepositoryManager repoManager;
   private final MergeUtil.Factory mergeUtilFactory;
   private final MergeabilityCache mergeabilityCache;
@@ -367,6 +371,7 @@
       ChangeMessagesUtil cmUtil,
       ChangeNotes.Factory notesFactory,
       CommentsUtil commentsUtil,
+      ExperimentFeatures experimentFeatures,
       GitRepositoryManager repoManager,
       MergeUtil.Factory mergeUtilFactory,
       MergeabilityCache mergeabilityCache,
@@ -386,6 +391,7 @@
     this.cmUtil = cmUtil;
     this.notesFactory = notesFactory;
     this.commentsUtil = commentsUtil;
+    this.experimentFeatures = experimentFeatures;
     this.repoManager = repoManager;
     this.mergeUtilFactory = mergeUtilFactory;
     this.mergeabilityCache = mergeabilityCache;
@@ -946,14 +952,33 @@
         return Collections.emptyMap();
       }
       Change c = change();
-      if (c != null && c.isClosed()) {
-        submitRequirements =
-            notes().getSubmitRequirementsResult().stream()
-                .collect(Collectors.toMap(r -> r.submitRequirement(), Function.identity()));
-      } else {
+      if (c == null || !c.isClosed()) {
+        // Open changes: Evaluate submit requirements online.
         submitRequirements =
             submitRequirementsEvaluator.evaluateAllRequirements(this, /* includeLegacy= */ true);
+        return submitRequirements;
       }
+      // Closed changes: Load submit requirement results from NoteDb.
+      Map<SubmitRequirement, SubmitRequirementResult> projectConfigRequirements =
+          notes().getSubmitRequirementsResult().stream()
+              .filter(r -> !r.legacy())
+              .collect(Collectors.toMap(r -> r.submitRequirement(), Function.identity()));
+      if (!experimentFeatures.isFeatureEnabled(
+          ExperimentFeaturesConstants
+              .GERRIT_BACKEND_REQUEST_FEATURE_ENABLE_LEGACY_SUBMIT_REQUIREMENTS)) {
+        submitRequirements = projectConfigRequirements;
+        return submitRequirements;
+      }
+      // Get legacy submit requirements, i.e. those created from submit records.
+      Map<SubmitRequirement, SubmitRequirementResult> legacyRequirements =
+          SubmitRequirementsAdapter.getLegacyRequirements(submitRuleEvaluatorFactory, this);
+      // Combine projectConfigRequirements with legacyRequirements
+      submitRequirements =
+          Stream.of(projectConfigRequirements, legacyRequirements)
+              .flatMap(map -> map.entrySet().stream())
+              .collect(
+                  ImmutableMap.toImmutableMap(
+                      Map.Entry::getKey, Map.Entry::getValue, (value1, value2) -> value1));
     }
     return submitRequirements;
   }
diff --git a/javatests/com/google/gerrit/acceptance/api/change/ChangeIT.java b/javatests/com/google/gerrit/acceptance/api/change/ChangeIT.java
index 6a0408a..ed9f2f3 100644
--- a/javatests/com/google/gerrit/acceptance/api/change/ChangeIT.java
+++ b/javatests/com/google/gerrit/acceptance/api/change/ChangeIT.java
@@ -4582,8 +4582,12 @@
     // 4. Merge the change. Submit requirements status is presented from NoteDb.
     gApi.changes().id(changeId).current().submit();
     change = gApi.changes().id(changeId).get();
-    // Legacy submit records are not stored as submit requirements in NoteDb.
-    assertThat(change.submitRequirements).isEmpty();
+    // Legacy submit records are returned as submit requirements.
+    assertThat(change.submitRequirements).hasSize(2);
+    assertSubmitRequirementStatus(
+        change.submitRequirements, "Code-Review", Status.SATISFIED, /* isLegacy= */ true);
+    assertSubmitRequirementStatus(
+        change.submitRequirements, "build-cop-override", Status.SATISFIED, /* isLegacy= */ true);
   }
 
   @Test