diff --git a/src/lerobot/motors/__init__.py b/src/lerobot/motors/__init__.py
index dfbfbaee..850ef33d 100644
--- a/src/lerobot/motors/__init__.py
+++ b/src/lerobot/motors/__init__.py
@@ -1 +1,17 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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 .motors_bus import Motor, MotorCalibration, MotorNormMode, MotorsBus
diff --git a/src/lerobot/processor/policy_robot_bridge.py b/src/lerobot/processor/policy_robot_bridge.py
index 845ee065..25887d41 100644
--- a/src/lerobot/processor/policy_robot_bridge.py
+++ b/src/lerobot/processor/policy_robot_bridge.py
@@ -1,3 +1,19 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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 dataclasses import asdict, dataclass
 from typing import Any
 
diff --git a/src/lerobot/robots/__init__.py b/src/lerobot/robots/__init__.py
index d8fd0de9..1dba0f1b 100644
--- a/src/lerobot/robots/__init__.py
+++ b/src/lerobot/robots/__init__.py
@@ -1,3 +1,19 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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 .config import RobotConfig
 from .robot import Robot
 from .utils import make_robot_from_config
diff --git a/tests/plugins/reachy2_sdk.py b/tests/plugins/reachy2_sdk.py
index f56b59ef..457fcf0f 100644
--- a/tests/plugins/reachy2_sdk.py
+++ b/tests/plugins/reachy2_sdk.py
@@ -1,3 +1,19 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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.
+
 import sys
 import types
 from unittest.mock import MagicMock
diff --git a/tests/policies/pi0_pi05/test_pi0.py b/tests/policies/pi0_pi05/test_pi0.py
index 65f64e6b..b580310e 100644
--- a/tests/policies/pi0_pi05/test_pi0.py
+++ b/tests/policies/pi0_pi05/test_pi0.py
@@ -1,5 +1,19 @@
 #!/usr/bin/env python
 
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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.
+
 """Test script to verify PI0 policy integration with LeRobot, only meant to be run locally!"""
 
 import os
diff --git a/tests/policies/pi0_pi05/test_pi05.py b/tests/policies/pi0_pi05/test_pi05.py
index 72828a02..96453944 100644
--- a/tests/policies/pi0_pi05/test_pi05.py
+++ b/tests/policies/pi0_pi05/test_pi05.py
@@ -1,5 +1,19 @@
 #!/usr/bin/env python
 
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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.
+
 """Test script to verify PI0.5 (pi05) support in PI0 policy, only meant to be run locally!"""
 
 import os
diff --git a/tests/policies/pi0_pi05/test_pi05_original_vs_lerobot.py b/tests/policies/pi0_pi05/test_pi05_original_vs_lerobot.py
index 7bea8948..0d5244e1 100644
--- a/tests/policies/pi0_pi05/test_pi05_original_vs_lerobot.py
+++ b/tests/policies/pi0_pi05/test_pi05_original_vs_lerobot.py
@@ -1,3 +1,19 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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.
+
 """Test script to verify PI0OpenPI policy integration with LeRobot vs the original implementation, only meant to be run locally!"""
 
 import os
diff --git a/tests/policies/pi0_pi05/test_pi0_original_vs_lerobot.py b/tests/policies/pi0_pi05/test_pi0_original_vs_lerobot.py
index d91f716f..41db2dce 100644
--- a/tests/policies/pi0_pi05/test_pi0_original_vs_lerobot.py
+++ b/tests/policies/pi0_pi05/test_pi0_original_vs_lerobot.py
@@ -1,3 +1,19 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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.
+
 """Test script to verify PI0 policy integration with LeRobot vs the original implementation, only meant to be run locally!"""
 
 import os
diff --git a/tests/processor/test_batch_conversion.py b/tests/processor/test_batch_conversion.py
index 88b87312..47738161 100644
--- a/tests/processor/test_batch_conversion.py
+++ b/tests/processor/test_batch_conversion.py
@@ -1,3 +1,19 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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.
+
 import torch
 
 from lerobot.processor import DataProcessorPipeline, TransitionKey
diff --git a/tests/processor/test_converters.py b/tests/processor/test_converters.py
index bc58f7a6..47a6eea1 100644
--- a/tests/processor/test_converters.py
+++ b/tests/processor/test_converters.py
@@ -1,3 +1,19 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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.
+
 import numpy as np
 import pytest
 import torch
diff --git a/tests/processor/test_tokenizer_processor.py b/tests/processor/test_tokenizer_processor.py
index b81710db..d6f87f56 100644
--- a/tests/processor/test_tokenizer_processor.py
+++ b/tests/processor/test_tokenizer_processor.py
@@ -1,3 +1,19 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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.
+
 """
 Tests for the TokenizerProcessorStep class.
 """
diff --git a/tests/utils/test_io_utils.py b/tests/utils/test_io_utils.py
index 9768a5ef..0beea639 100644
--- a/tests/utils/test_io_utils.py
+++ b/tests/utils/test_io_utils.py
@@ -1,4 +1,6 @@
-# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,6 +13,7 @@
 # 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.
+
 import json
 from pathlib import Path
 from typing import Any
diff --git a/tests/utils/test_logging_utils.py b/tests/utils/test_logging_utils.py
index 927fdc14..560ba570 100644
--- a/tests/utils/test_logging_utils.py
+++ b/tests/utils/test_logging_utils.py
@@ -1,4 +1,6 @@
-# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,6 +13,7 @@
 # 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.
+
 import pytest
 
 from lerobot.utils.logging_utils import AverageMeter, MetricsTracker
diff --git a/tests/utils/test_random_utils.py b/tests/utils/test_random_utils.py
index 5865361d..e3a5d420 100644
--- a/tests/utils/test_random_utils.py
+++ b/tests/utils/test_random_utils.py
@@ -1,4 +1,6 @@
-# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,6 +13,7 @@
 # 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.
+
 import random
 
 import numpy as np
diff --git a/tests/utils/test_train_utils.py b/tests/utils/test_train_utils.py
index 0eeaf907..892503e9 100644
--- a/tests/utils/test_train_utils.py
+++ b/tests/utils/test_train_utils.py
@@ -1,4 +1,6 @@
-# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,6 +13,7 @@
 # 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 pathlib import Path
 from unittest.mock import Mock, patch
 
diff --git a/tests/utils/test_visualization_utils.py b/tests/utils/test_visualization_utils.py
index 65a97c6a..08a82757 100644
--- a/tests/utils/test_visualization_utils.py
+++ b/tests/utils/test_visualization_utils.py
@@ -1,3 +1,19 @@
+#!/usr/bin/env python
+
+# Copyright 2025 The HuggingFace Inc. team. All rights reserved.
+#
+# 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.
+
 import importlib
 import sys
 from types import SimpleNamespace