diff --git a/experimental/reporting-ui/src/main/react/reporting-ui/library/initialize.ts b/experimental/reporting-ui/src/main/react/reporting-ui/library/initialize.ts
index 72b9671bf8a..1a2f519293a 100644
--- a/experimental/reporting-ui/src/main/react/reporting-ui/library/initialize.ts
+++ b/experimental/reporting-ui/src/main/react/reporting-ui/library/initialize.ts
@@ -1,3 +1,17 @@
+// Copyright 2023 The Cross-Media Measurement Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 import { ReportingClient } from "./reporting_client/reporting_client"
 import { ReportingClientImpl } from "./reporting_client/reporting_client_impl";