diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
index 965377aa66..454ec3e88e 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -1,3 +1,16 @@
+# Copyright 2024 The StableHLO 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.
+
 name: 🐞 Bug Report
 description: Report an issue
 body:
diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml
index 460661d0af..4374879bb5 100644
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@@ -1,3 +1,16 @@
+# Copyright 2024 The StableHLO 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.
+
 blank_issues_enabled: true
 contact_links:
   - name: 📄 Blank Issue
diff --git a/.github/ISSUE_TEMPLATE/feature_request.yml b/.github/ISSUE_TEMPLATE/feature_request.yml
index dd752fd9bd..e07d000246 100644
--- a/.github/ISSUE_TEMPLATE/feature_request.yml
+++ b/.github/ISSUE_TEMPLATE/feature_request.yml
@@ -1,3 +1,16 @@
+# Copyright 2024 The StableHLO 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.
+
 name: ➕ Feature Request
 description: Ask for a new feature to be added
 body:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 8712f9c9c0..3d4df34ae1 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -80,3 +80,19 @@ jobs:
 
       - name: Run buildifier checks
         run: ./build_tools/github_actions/lint_buildifier.sh
+
+  license-check:
+    if: "github.event_name == 'pull_request'"
+    runs-on: ${{ github.repository == 'openxla/stablehlo' && 'ubuntu-22.04-64core' ||  'ubuntu-22.04'  }}
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - name: Checking out repository
+        uses: actions/checkout@v4
+
+      - name: Install addlicense
+        run: go install github.com/google/addlicense@latest
+
+      - name: Run license checks
+        run: addlicense -check -ignore '.git/**' -ignore 'build/**' -ignore 'llvm*/**' .
diff --git a/stablehlo/conversions/CMakeLists.txt b/stablehlo/conversions/CMakeLists.txt
index 5cda94c7ef..4b6c5be1e3 100644
--- a/stablehlo/conversions/CMakeLists.txt
+++ b/stablehlo/conversions/CMakeLists.txt
@@ -1,2 +1,15 @@
+# Copyright 2024 The StableHLO 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.
+
 add_subdirectory(linalg)
 add_subdirectory(tosa)
diff --git a/stablehlo/conversions/linalg/CMakeLists.txt b/stablehlo/conversions/linalg/CMakeLists.txt
index 65224e8f27..7b01b844f7 100644
--- a/stablehlo/conversions/linalg/CMakeLists.txt
+++ b/stablehlo/conversions/linalg/CMakeLists.txt
@@ -1,2 +1,15 @@
+# Copyright 2024 The StableHLO 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.
+
 add_subdirectory(tests)
 add_subdirectory(transforms)
diff --git a/stablehlo/conversions/linalg/transforms/CMakeLists.txt b/stablehlo/conversions/linalg/transforms/CMakeLists.txt
index 4731573be8..d9822911f1 100644
--- a/stablehlo/conversions/linalg/transforms/CMakeLists.txt
+++ b/stablehlo/conversions/linalg/transforms/CMakeLists.txt
@@ -1,3 +1,16 @@
+# Copyright 2024 The StableHLO 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(LLVM_TARGET_DEFINITIONS Passes.td)
 mlir_tablegen(Passes.h.inc -gen-pass-decls -name StablehloLinalgTransforms)
 add_public_tablegen_target(StablehloLinalgTransformsPassIncGen)