diff --git a/impl/pom.xml b/impl/pom.xml
index 896fed3..3cd4081 100644
--- a/impl/pom.xml
+++ b/impl/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2021 Open Networking Foundation
+  ~ Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/cli/OltUniPortCompleter.java b/impl/src/main/java/org/opencord/olt/cli/OltUniPortCompleter.java
index bda36b6..2470712 100644
--- a/impl/src/main/java/org/opencord/olt/cli/OltUniPortCompleter.java
+++ b/impl/src/main/java/org/opencord/olt/cli/OltUniPortCompleter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/cli/ShowFailedSubscribersCommand.java b/impl/src/main/java/org/opencord/olt/cli/ShowFailedSubscribersCommand.java
index cb40faa..1c628a6 100644
--- a/impl/src/main/java/org/opencord/olt/cli/ShowFailedSubscribersCommand.java
+++ b/impl/src/main/java/org/opencord/olt/cli/ShowFailedSubscribersCommand.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/cli/ShowMeterMappings.java b/impl/src/main/java/org/opencord/olt/cli/ShowMeterMappings.java
index 9d0e2ad..05cdd86 100644
--- a/impl/src/main/java/org/opencord/olt/cli/ShowMeterMappings.java
+++ b/impl/src/main/java/org/opencord/olt/cli/ShowMeterMappings.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/cli/ShowPortStatus.java b/impl/src/main/java/org/opencord/olt/cli/ShowPortStatus.java
index d82ec33..3bfa207 100644
--- a/impl/src/main/java/org/opencord/olt/cli/ShowPortStatus.java
+++ b/impl/src/main/java/org/opencord/olt/cli/ShowPortStatus.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/cli/ShowProgrammedMeters.java b/impl/src/main/java/org/opencord/olt/cli/ShowProgrammedMeters.java
index dbb390e..59bbc2f 100644
--- a/impl/src/main/java/org/opencord/olt/cli/ShowProgrammedMeters.java
+++ b/impl/src/main/java/org/opencord/olt/cli/ShowProgrammedMeters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/cli/ShowProgrammedSubscribersCommand.java b/impl/src/main/java/org/opencord/olt/cli/ShowProgrammedSubscribersCommand.java
index a32fcc3..bb54995 100644
--- a/impl/src/main/java/org/opencord/olt/cli/ShowProgrammedSubscribersCommand.java
+++ b/impl/src/main/java/org/opencord/olt/cli/ShowProgrammedSubscribersCommand.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/cli/ShowRequestedSubscribersCommand.java b/impl/src/main/java/org/opencord/olt/cli/ShowRequestedSubscribersCommand.java
index 067bc18..b59fe0b 100644
--- a/impl/src/main/java/org/opencord/olt/cli/ShowRequestedSubscribersCommand.java
+++ b/impl/src/main/java/org/opencord/olt/cli/ShowRequestedSubscribersCommand.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/cli/SubscriberAddAllCommand.java b/impl/src/main/java/org/opencord/olt/cli/SubscriberAddAllCommand.java
index 2a1a3c6..9f78fda 100644
--- a/impl/src/main/java/org/opencord/olt/cli/SubscriberAddAllCommand.java
+++ b/impl/src/main/java/org/opencord/olt/cli/SubscriberAddAllCommand.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/cli/package-info.java b/impl/src/main/java/org/opencord/olt/cli/package-info.java
index c657d73..c89d933 100644
--- a/impl/src/main/java/org/opencord/olt/cli/package-info.java
+++ b/impl/src/main/java/org/opencord/olt/cli/package-info.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/driver/OltDriversLoader.java b/impl/src/main/java/org/opencord/olt/driver/OltDriversLoader.java
index f6714d4..2fcc9f1 100644
--- a/impl/src/main/java/org/opencord/olt/driver/OltDriversLoader.java
+++ b/impl/src/main/java/org/opencord/olt/driver/OltDriversLoader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/driver/package-info.java b/impl/src/main/java/org/opencord/olt/driver/package-info.java
index dbf2a79..222bfd7 100644
--- a/impl/src/main/java/org/opencord/olt/driver/package-info.java
+++ b/impl/src/main/java/org/opencord/olt/driver/package-info.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/Olt.java b/impl/src/main/java/org/opencord/olt/impl/Olt.java
index e95df6f..f6537e5 100644
--- a/impl/src/main/java/org/opencord/olt/impl/Olt.java
+++ b/impl/src/main/java/org/opencord/olt/impl/Olt.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/OltDeviceService.java b/impl/src/main/java/org/opencord/olt/impl/OltDeviceService.java
index 6b11802..65349cd 100644
--- a/impl/src/main/java/org/opencord/olt/impl/OltDeviceService.java
+++ b/impl/src/main/java/org/opencord/olt/impl/OltDeviceService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/OltFlowService.java b/impl/src/main/java/org/opencord/olt/impl/OltFlowService.java
index f303f4a..4cd96ee 100644
--- a/impl/src/main/java/org/opencord/olt/impl/OltFlowService.java
+++ b/impl/src/main/java/org/opencord/olt/impl/OltFlowService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/OltFlowServiceUtils.java b/impl/src/main/java/org/opencord/olt/impl/OltFlowServiceUtils.java
index 883c198..3f2d3b9 100644
--- a/impl/src/main/java/org/opencord/olt/impl/OltFlowServiceUtils.java
+++ b/impl/src/main/java/org/opencord/olt/impl/OltFlowServiceUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/OltMeterService.java b/impl/src/main/java/org/opencord/olt/impl/OltMeterService.java
index 133a2d2..9b34c83 100644
--- a/impl/src/main/java/org/opencord/olt/impl/OltMeterService.java
+++ b/impl/src/main/java/org/opencord/olt/impl/OltMeterService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/OltUtils.java b/impl/src/main/java/org/opencord/olt/impl/OltUtils.java
index 339bfb1..31a7ab6 100644
--- a/impl/src/main/java/org/opencord/olt/impl/OltUtils.java
+++ b/impl/src/main/java/org/opencord/olt/impl/OltUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/ServiceKeySerializer.java b/impl/src/main/java/org/opencord/olt/impl/ServiceKeySerializer.java
index 6e0c85b..8483b43 100644
--- a/impl/src/main/java/org/opencord/olt/impl/ServiceKeySerializer.java
+++ b/impl/src/main/java/org/opencord/olt/impl/ServiceKeySerializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/fttb/FttbUtils.java b/impl/src/main/java/org/opencord/olt/impl/fttb/FttbUtils.java
index 9ce0181..4adc2f2 100644
--- a/impl/src/main/java/org/opencord/olt/impl/fttb/FttbUtils.java
+++ b/impl/src/main/java/org/opencord/olt/impl/fttb/FttbUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/fttb/package-info.java b/impl/src/main/java/org/opencord/olt/impl/fttb/package-info.java
index 6a7d770..aa6165a 100644
--- a/impl/src/main/java/org/opencord/olt/impl/fttb/package-info.java
+++ b/impl/src/main/java/org/opencord/olt/impl/fttb/package-info.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/main/java/org/opencord/olt/impl/package-info.java b/impl/src/main/java/org/opencord/olt/impl/package-info.java
index ccdfda7..b466f1f 100644
--- a/impl/src/main/java/org/opencord/olt/impl/package-info.java
+++ b/impl/src/main/java/org/opencord/olt/impl/package-info.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/test/java/org/opencord/olt/impl/OltDeviceListenerTest.java b/impl/src/test/java/org/opencord/olt/impl/OltDeviceListenerTest.java
index 86bfcd8..4031aaa 100644
--- a/impl/src/test/java/org/opencord/olt/impl/OltDeviceListenerTest.java
+++ b/impl/src/test/java/org/opencord/olt/impl/OltDeviceListenerTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/test/java/org/opencord/olt/impl/OltDeviceServiceTest.java b/impl/src/test/java/org/opencord/olt/impl/OltDeviceServiceTest.java
index 5623896..04a0a72 100644
--- a/impl/src/test/java/org/opencord/olt/impl/OltDeviceServiceTest.java
+++ b/impl/src/test/java/org/opencord/olt/impl/OltDeviceServiceTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/test/java/org/opencord/olt/impl/OltFlowServiceTest.java b/impl/src/test/java/org/opencord/olt/impl/OltFlowServiceTest.java
index a93ac8d..8d380ae 100644
--- a/impl/src/test/java/org/opencord/olt/impl/OltFlowServiceTest.java
+++ b/impl/src/test/java/org/opencord/olt/impl/OltFlowServiceTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/test/java/org/opencord/olt/impl/OltMeterServiceTest.java b/impl/src/test/java/org/opencord/olt/impl/OltMeterServiceTest.java
index 8e90a2b..4b3eb6d 100644
--- a/impl/src/test/java/org/opencord/olt/impl/OltMeterServiceTest.java
+++ b/impl/src/test/java/org/opencord/olt/impl/OltMeterServiceTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/test/java/org/opencord/olt/impl/OltTest.java b/impl/src/test/java/org/opencord/olt/impl/OltTest.java
index 9197297..63cab05 100644
--- a/impl/src/test/java/org/opencord/olt/impl/OltTest.java
+++ b/impl/src/test/java/org/opencord/olt/impl/OltTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/test/java/org/opencord/olt/impl/OltTestHelpers.java b/impl/src/test/java/org/opencord/olt/impl/OltTestHelpers.java
index 6965bd2..fe20d8f 100644
--- a/impl/src/test/java/org/opencord/olt/impl/OltTestHelpers.java
+++ b/impl/src/test/java/org/opencord/olt/impl/OltTestHelpers.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/impl/src/test/java/org/opencord/olt/impl/package-info.java b/impl/src/test/java/org/opencord/olt/impl/package-info.java
index 56e096f..f1424cc 100644
--- a/impl/src/test/java/org/opencord/olt/impl/package-info.java
+++ b/impl/src/test/java/org/opencord/olt/impl/package-info.java
@@ -1,5 +1,5 @@
 /**
- * Copyright 2021-present Open Networking Foundation
+ * Copyright 2021-2023 Open Networking Foundation (ONF) and the ONF Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.