Black silhouettes of trucks and a bus.
Truck and Bus Regulation
Regulation Index Funding Resources Index

Requires PM filters for heavier trucks starting January 1,2012 and early vehicle replacements for vehicles with a gross vehicle weight rating greater than 14,000 pounds starting January 1, 2015. (Para ver esta página en español.)

Applies to privately and federally owned trucks and buses and privately and publicly owned school buses that operate in California. Includes any person, business, school district, tribal reservation, or federal government agency that owns, operates, leases or rents affected vehicles. Does not include vehicles subject to Solid Waste Collection Vehicle Regulation, Public Agency and Utility Vehicle Regulation, Drayage (Port or Rail) Truck or Transit/Urban Bus Regulations.

Icon saying NEW A motor home or a recreational vehicle is not part of the truck and bus regulation if the vehicle is of the type stated as exempt in this regulation.

Fleets of three or fewer vehicles can take advantage of the small fleet provisions that delay clean-up until January 1, 2014; however, reporting requirements start in 2012. There is no fee for reporting.

Regulation Information

Reporting Tools

Compliance Options (Provisions and Credits)Truck and bus flier cover


DPF/Soot Filter (VDECS, diesel particulate filter, PM Filter, Exhaust Retrofit) Information

Financial Assistance