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
Due to current events, processing of compliance documentation mailed in by hard copy, and wait times on the Diesel Hotline, may take longer than usual. For faster service processing of your compliance documentation, email a scanned copy of your documents to TRUCRS@arb.ca.gov. Include your TRUCRS ID number, detailed description of request, any applicable VIN(s) and your call-back information. Faxing of documentation is currently not available.
To help expedite your compliance questions, email them to 8666DIESEL@arb.ca.gov and include a detailed description of your situation and any applicable VIN(s).
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