diff --git a/nav2_costmap_2d/include/nav2_costmap_2d/plugin_container_layer.hpp b/nav2_costmap_2d/include/nav2_costmap_2d/plugin_container_layer.hpp
index 4c5df4078a..2aa9426b03 100644
--- a/nav2_costmap_2d/include/nav2_costmap_2d/plugin_container_layer.hpp
+++ b/nav2_costmap_2d/include/nav2_costmap_2d/plugin_container_layer.hpp
@@ -1,3 +1,17 @@
+// Copyright (c) 2024 Polymath Robotics, Inc.
+//
+// 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.
+
 #ifndef NAV2_COSTMAP_2D__PLUGIN_CONTAINER_LAYER_HPP_
 #define NAV2_COSTMAP_2D__PLUGIN_CONTAINER_LAYER_HPP_
 
diff --git a/nav2_costmap_2d/plugins/plugin_container_layer.cpp b/nav2_costmap_2d/plugins/plugin_container_layer.cpp
index 017dd1248a..c73d98760f 100644
--- a/nav2_costmap_2d/plugins/plugin_container_layer.cpp
+++ b/nav2_costmap_2d/plugins/plugin_container_layer.cpp
@@ -1,3 +1,17 @@
+// Copyright (c) 2024 Polymath Robotics, Inc.
+//
+// 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.
+
 #include "nav2_costmap_2d/plugin_container_layer.hpp"
 
 #include "nav2_costmap_2d/costmap_math.hpp"
diff --git a/nav2_costmap_2d/test/integration/plugin_container_tests.cpp b/nav2_costmap_2d/test/integration/plugin_container_tests.cpp
index 0325ec4016..4b16d16f16 100644
--- a/nav2_costmap_2d/test/integration/plugin_container_tests.cpp
+++ b/nav2_costmap_2d/test/integration/plugin_container_tests.cpp
@@ -1,3 +1,17 @@
+// Copyright (c) 2024 Polymath Robotics, Inc.
+//
+// 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.
+
 #include <memory>
 #include <string>
 #include <algorithm>