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Article 4.5 | Midpage
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California Code of Regulations
Title 13
Division 3. Air Resources Board
Chapter 1. Motor Vehicle Pollution Control Devices
Article 4.5
Article 4.5
State of California
2025
Regulation to Reduce Emissions of Diesel Particulate Matter, Oxides of Nitrogen and Other Criteria Pollutants, from In-Use Heavy-Duty Diesel-Fueled Vehicles.
2027
In-Use On-Road Diesel-Fueled Heavy-Duty Drayage Trucks.