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California Code of Regulations
Title 13. Motor Vehicles
Division 3. Air Resources Board
Chapter 10. Mobile Source Operational Controls
Article 1. Motor Vehicles
§ 2480. Airborne Toxic Control Measure to Limit School Bus Idling and Idling at Schools.
§ 2485. Airborne Toxic Control Measure to Limit Diesel-Fueled Commercial Motor Vehicle Idling.