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Regulations

The list below includes ARB regulations that apply to heavy-duty diesel vehicles operating in California.




Auxiliary Power Unit (APU)

Note: For trucks with 2007 and newer model year engines, additional requirements apply. For trucks with 2006 and earlier model year engines, any California- or 

    federally-certified internal-combustion auxiliary power system may be used.

Regulatory Program Website
Exhaust Retrofit Guidance (Filters)

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Drayage (Port or Rail Yard) Trucks

Regulatory Program Website
Drayage Truck Fact Sheet
Drayage Truck Registry Fact Sheet
Exhaust Retrofit Guidance (Filters)

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Emission Control Label Inspection Program

Regulatory Program Website
Emission Control Label Advisory
How to find the ECL/Emission Control Label on a truck and other questions answered

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Greenhouse Gas Emission Reduction Regulation (Tractor-Trailer GHG Regulation)

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Heavy-Duty Diesel Vehicle Inspection Program (HDVIP)

Regulatory Program Website
HDVIP Brochure

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Idling Reduction Program

Commercial Idling Regulatory Program Website
Commercial Idling Fact Sheet
School Zone Idling Regulatory Program Website
School Zone Idling Fact Sheet

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Periodic Smoke Inspection Program (PSIP)

Regulatory Program Website
Periodic Smoke Inspection Program Brochure

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Public Agency and Utility Regulation

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Truck and Bus Regulation

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