diff --git a/internal/pkg/core/common.go b/internal/pkg/core/common.go
index f7df7a0..3c8a826 100644
--- a/internal/pkg/core/common.go
+++ b/internal/pkg/core/common.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-present Open Networking Foundation
+ * Copyright 2020-2023 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/internal/pkg/core/device_handler.go b/internal/pkg/core/device_handler.go
index 37c5397..5dd278c 100644
--- a/internal/pkg/core/device_handler.go
+++ b/internal/pkg/core/device_handler.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * Copyright 2018-2023 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/internal/pkg/core/device_handler_test.go b/internal/pkg/core/device_handler_test.go
index 0948830..4c9a00f 100644
--- a/internal/pkg/core/device_handler_test.go
+++ b/internal/pkg/core/device_handler_test.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * Copyright 2018-2023 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/internal/pkg/core/olt_state_transitions_test.go b/internal/pkg/core/olt_state_transitions_test.go
index 492c80a..cc3d1a2 100644
--- a/internal/pkg/core/olt_state_transitions_test.go
+++ b/internal/pkg/core/olt_state_transitions_test.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * Copyright 2018-2023 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/internal/pkg/core/openoltInterAdapter.go b/internal/pkg/core/openoltInterAdapter.go
index c8fb8bd..db9c70d 100644
--- a/internal/pkg/core/openoltInterAdapter.go
+++ b/internal/pkg/core/openoltInterAdapter.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-present Open Networking Foundation
+ * Copyright 2022-2023 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/internal/pkg/core/openolt_eventmgr.go b/internal/pkg/core/openolt_eventmgr.go
index 07d2bd0..f39dcf7 100644
--- a/internal/pkg/core/openolt_eventmgr.go
+++ b/internal/pkg/core/openolt_eventmgr.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * Copyright 2018-2023 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/internal/pkg/core/openolt_flowmgr.go b/internal/pkg/core/openolt_flowmgr.go
index 6cc4f5b..b06af00 100644
--- a/internal/pkg/core/openolt_flowmgr.go
+++ b/internal/pkg/core/openolt_flowmgr.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * Copyright 2018-2023 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/internal/pkg/core/openolt_groupmgr.go b/internal/pkg/core/openolt_groupmgr.go
index 91f32e3..6490ebf 100644
--- a/internal/pkg/core/openolt_groupmgr.go
+++ b/internal/pkg/core/openolt_groupmgr.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-present Open Networking Foundation
+ * Copyright 2020-2023 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.
  * You may obtain a copy of the License at
diff --git a/internal/pkg/core/openolt_test.go b/internal/pkg/core/openolt_test.go
index f909128..575ce64 100644
--- a/internal/pkg/core/openolt_test.go
+++ b/internal/pkg/core/openolt_test.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * Copyright 2018-2023 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/internal/pkg/core/statsmanager.go b/internal/pkg/core/statsmanager.go
index c8f32fd..eedfa19 100755
--- a/internal/pkg/core/statsmanager.go
+++ b/internal/pkg/core/statsmanager.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-present Open Networking Foundation
+ * Copyright 2019-2023 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/internal/pkg/core/statsmanager_test.go b/internal/pkg/core/statsmanager_test.go
index 219e255..ab6dfd7 100644
--- a/internal/pkg/core/statsmanager_test.go
+++ b/internal/pkg/core/statsmanager_test.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-present Open Networking Foundation
+ * Copyright 2019-2023 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.