DMV Compliance Verification
On January 1, 2020 heavy-duty diesel vehicles that are not in compliance with the Truck & Bus regulation will be unable to register their vehicle with DMV. Visit TruckStop to learn more.
Truck and Bus Regulation
The Truck and Bus regulation has been in effect since December 2008 and we are now in the last replacement phase of the regulation with a final deadline of January 1, 2023, to upgrade to 2010 or newer model year engines. Due to the current situation, processing of compliance documentation mailed in by hard copy, and wait times on the Diesel Hotline, may take longer than usual. For faster processing of your compliance documentation, email a scanned copy or photo of your documents to trucrs@arb.ca.gov. Include your TRUCRS ID number, a detailed description of the request, and any applicable VIN(s). Faxing of documentation is not currently available. Thank you for your patience as we work diligently to keep things running smoothly during these challenging times.
More about this program
Official California Diesel Truck Information
Check compliance status
Answers to common questions