diff --git a/README.md b/README.md
index 4d0f273..f6c4720 100644
--- a/README.md
+++ b/README.md
@@ -16,3 +16,23 @@ is missing, please don't hesitate to submit a PR.
 Note that due to struct alignment issues, this isn't yet fully native.
 Preferrably, this could be resolved, so contributions in this direction are
 greatly appreciated.
+
+## Applying License Header to New Files
+
+If you submit a contribution that adds a new file, please add the license
+header. You can do so manually or use the `ltag` tool:
+
+
+```console
+$ go get github.com/kunalkushwaha/ltag
+$ ltag -t ./license-templates
+```
+
+The above will add the appropriate licenses to Go files. New templates will
+need to be added if other kinds of files are added. Please consult the
+documentation at https://github.com/
+
+# License
+
+The copyright to this repository is held by the The containerd Authors and the
+codebase is released under the [Apache 2.0 license](LICENSE).
diff --git a/btrfs.go b/btrfs.go
index efdf528..015cb62 100644
--- a/btrfs.go
+++ b/btrfs.go
@@ -1,3 +1,18 @@
+/*
+  Copyright The containerd 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.
+*/
 package btrfs
 
 import "sort"
diff --git a/cmd/btrfs-test/main.go b/cmd/btrfs-test/main.go
index 6cbadd0..abe8f93 100644
--- a/cmd/btrfs-test/main.go
+++ b/cmd/btrfs-test/main.go
@@ -1,3 +1,18 @@
+/*
+  Copyright The containerd 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.
+*/
 package main
 
 import (
diff --git a/doc.go b/doc.go
new file mode 100644
index 0000000..8d572dd
--- /dev/null
+++ b/doc.go
@@ -0,0 +1,17 @@
+/*
+  Copyright The containerd 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.
+*/
+// Package btrfs provides bindings for working with btrfs partitions from Go.
+package btrfs
diff --git a/helpers.go b/helpers.go
index cc417ab..a482706 100644
--- a/helpers.go
+++ b/helpers.go
@@ -1,3 +1,18 @@
+/*
+  Copyright The containerd 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.
+*/
 package btrfs
 
 /*
diff --git a/info.go b/info.go
index 9850c9b..c283a4e 100644
--- a/info.go
+++ b/info.go
@@ -1,3 +1,18 @@
+/*
+  Copyright The containerd 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.
+*/
 package btrfs
 
 // Info describes metadata about a btrfs subvolume.
diff --git a/ioctl.go b/ioctl.go
index 369b6d0..8df9bd0 100644
--- a/ioctl.go
+++ b/ioctl.go
@@ -1,3 +1,18 @@
+/*
+  Copyright The containerd 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.
+*/
 package btrfs
 
 import "syscall"