diff --git a/src/backend/app/models/TrafficFlowObserved.py b/src/backend/app/models/TrafficFlowObserved.py
index 8b4273a..a393c3f 100644
--- a/src/backend/app/models/TrafficFlowObserved.py
+++ b/src/backend/app/models/TrafficFlowObserved.py
@@ -1,3 +1,8 @@
+# Copyright (c) 2025 Green Wave Team
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
 from __future__ import annotations
 
 from typing import List, Optional, Union