diff --git a/agent/src/core.cc b/agent/src/core.cc
index 897d326..43ce76f 100644
--- a/agent/src/core.cc
+++ b/agent/src/core.cc
@@ -1,19 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ * 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.
+ */
 
 #include <iostream>
 #include <memory>
diff --git a/agent/src/error_format.cc b/agent/src/error_format.cc
index 53588e4..f8de289 100644
--- a/agent/src/error_format.cc
+++ b/agent/src/error_format.cc
@@ -1,19 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ * 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.
+ */
 
 #include "error_format.h"
 using grpc::Status;
diff --git a/agent/src/error_format.h b/agent/src/error_format.h
index 3928dc1..e066ef2 100644
--- a/agent/src/error_format.h
+++ b/agent/src/error_format.h
@@ -1,19 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ * 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.
+ */
 
 #ifndef OPENOLT_ERROR_FORMAT_H_
 #define OPENOLT_ERROR_FORMAT_H_
diff --git a/agent/src/indications.cc b/agent/src/indications.cc
index cc42adc..07edbd9 100644
--- a/agent/src/indications.cc
+++ b/agent/src/indications.cc
@@ -1,19 +1,19 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ * 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.
+ */
+
 #include "indications.h"
 #include "core.h"
 #include "utils.h"
diff --git a/agent/src/indications.h b/agent/src/indications.h
index f762e72..0a7c953 100644
--- a/agent/src/indications.h
+++ b/agent/src/indications.h
@@ -1,20 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
+ * 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.
+ */
 #ifndef OPENOLT_INDICATIONS_H_
 #define OPENOLT_INDICATIONS_H_
 
diff --git a/agent/src/stats_collection.cc b/agent/src/stats_collection.cc
index 62213c2..e31ce4c 100644
--- a/agent/src/stats_collection.cc
+++ b/agent/src/stats_collection.cc
@@ -1,19 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ * 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.
+ */
 
 #include "stats_collection.h"
 
diff --git a/agent/src/stats_collection.h b/agent/src/stats_collection.h
index 8e1c00f..dd5835d 100644
--- a/agent/src/stats_collection.h
+++ b/agent/src/stats_collection.h
@@ -1,19 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ * 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.
+ */
 
 #ifndef OPENOLT_STATS_COLLECTION_H_
 #define OPENOLT_STATS_COLLECTION_H_
diff --git a/agent/src/translation.cc b/agent/src/translation.cc
index 2c82f58..19e9f66 100644
--- a/agent/src/translation.cc
+++ b/agent/src/translation.cc
@@ -1,19 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ * 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.
+ */
 
 #include <string.h>
 #include "translation.h"
diff --git a/agent/src/translation.h b/agent/src/translation.h
index 34fe69e..b4d8b90 100644
--- a/agent/src/translation.h
+++ b/agent/src/translation.h
@@ -1,20 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
+ * 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.
+ */
 #ifndef OPENOLT_TRANSLATION_H_
 #define OPENOLT_TRANSLATION_H_
 
diff --git a/agent/src/utils.cc b/agent/src/utils.cc
index 9fde90e..21ca84b 100644
--- a/agent/src/utils.cc
+++ b/agent/src/utils.cc
@@ -1,20 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation 
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
+ * 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.
+ */
 #include <string.h>
 #include "utils.h"
 
diff --git a/agent/src/utils.h b/agent/src/utils.h
index 52c018a..c35d6f0 100644
--- a/agent/src/utils.h
+++ b/agent/src/utils.h
@@ -1,20 +1,18 @@
 /*
-    Copyright (C) 2018 Open Networking Foundation
+ * Copyright 2018-present Open Networking Foundation
 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
+ * 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
 
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
 
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
+ * 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.
+ */
 #ifndef OPENOLT_UTILS_H_
 #define OPENOLT_UTILS_H_