diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7791786..ae86e27 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,6 +17,9 @@ jobs:
     - name: Lint
       run: DOCKER_BUILDKIT=1 make lint
 
+    - name: Check licenses
+      run: DOCKER_BUILDKIT=1 make check-license
+
     - name: Build
       run: make build
 
diff --git a/Makefile b/Makefile
index c2abfc0..f4e2f08 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,17 @@
+#   Copyright 2020 The Compose Specification 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.
+
 .DEFAULT_GOAL := help
 
 PACKAGE=github.com/compose-spec/compose-ref
@@ -25,6 +39,10 @@ build-validate-image:
 lint: build-validate-image
 	docker run --rm $(IMAGE_PREFIX)validate bash -c "golangci-lint run --config ./golangci.yml ./"
 
+.PHONY: check-license
+check-license: build-validate-image
+	docker run --rm $(IMAGE_PREFIX)validate bash -c "./scripts/validate/fileheader"
+
 .PHONY: setup
 setup: ## Setup the precommit hook
 	@which pre-commit > /dev/null 2>&1 || (echo "pre-commit not installed see README." && false)
diff --git a/ci/Dockerfile b/ci/Dockerfile
index cfc9652..8c14b43 100644
--- a/ci/Dockerfile
+++ b/ci/Dockerfile
@@ -1,3 +1,17 @@
+#   Copyright 2020 The Compose Specification 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.
+
 FROM golang:1.14
 
 WORKDIR /go/src
diff --git a/compose-ref.go b/compose-ref.go
index f3d0754..2b01dba 100644
--- a/compose-ref.go
+++ b/compose-ref.go
@@ -1,3 +1,19 @@
+/*
+   Copyright 2020 The Compose Specification 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/internal/container.go b/internal/container.go
index 31c40c2..03cf53a 100644
--- a/internal/container.go
+++ b/internal/container.go
@@ -1,3 +1,19 @@
+/*
+   Copyright 2020 The Compose Specification 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 internal
 
 import (
diff --git a/internal/labels.go b/internal/labels.go
index 97937a1..df974c6 100644
--- a/internal/labels.go
+++ b/internal/labels.go
@@ -1,3 +1,19 @@
+/*
+   Copyright 2020 The Compose Specification 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 internal
 
 const (
diff --git a/internal/network.go b/internal/network.go
index 8189f04..d221839 100644
--- a/internal/network.go
+++ b/internal/network.go
@@ -1,3 +1,19 @@
+/*
+   Copyright 2020 The Compose Specification 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 internal
 
 import (
diff --git a/internal/volume.go b/internal/volume.go
index 3d8bf99..7f18285 100644
--- a/internal/volume.go
+++ b/internal/volume.go
@@ -1,3 +1,19 @@
+/*
+   Copyright 2020 The Compose Specification 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 internal
 
 import (
diff --git a/scripts/validate/fileheader b/scripts/validate/fileheader
new file mode 100755
index 0000000..5144210
--- /dev/null
+++ b/scripts/validate/fileheader
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+#   Copyright The Compose Specification 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.
+
+
+set -eu -o pipefail
+
+if ! command -v ltag; then
+    >&2 echo "ERROR: ltag not found. Install with:"
+    >&2 echo "    go get -u github.com/kunalkushwaha/ltag"
+    exit 1
+fi
+
+BASEPATH="${1-}"
+
+ltag -t "${BASEPATH}scripts/validate/template" --excludes "validate vendor" --check -v
diff --git a/scripts/validate/template/bash.txt b/scripts/validate/template/bash.txt
new file mode 100644
index 0000000..6b06a7c
--- /dev/null
+++ b/scripts/validate/template/bash.txt
@@ -0,0 +1,14 @@
+#   Copyright 2020 The Compose Specification 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.
+
diff --git a/scripts/validate/template/dockerfile.txt b/scripts/validate/template/dockerfile.txt
new file mode 100644
index 0000000..6b06a7c
--- /dev/null
+++ b/scripts/validate/template/dockerfile.txt
@@ -0,0 +1,14 @@
+#   Copyright 2020 The Compose Specification 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.
+
diff --git a/scripts/validate/template/go.txt b/scripts/validate/template/go.txt
new file mode 100644
index 0000000..8503c40
--- /dev/null
+++ b/scripts/validate/template/go.txt
@@ -0,0 +1,16 @@
+/*
+   Copyright 2020 The Compose Specification 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.
+*/
+
diff --git a/scripts/validate/template/makefile.txt b/scripts/validate/template/makefile.txt
new file mode 100644
index 0000000..6b06a7c
--- /dev/null
+++ b/scripts/validate/template/makefile.txt
@@ -0,0 +1,14 @@
+#   Copyright 2020 The Compose Specification 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.
+