What are the CARB requirements I must meet to ensure that DMV can register my vehicle? 

The Truck and Bus Regulation is currently in effect, and your vehicle must meet the compliance deadlines. As of 2020, DMV checks compliance with the regulation in order to register your vehicle based on the following schedule: 

*You may already be out of compliance and currently subject to DMV registration holds. 

How does my vehicle comply?

You must replace your 2010 or older vehicle (2009 or older engine) based on the Truck & Bus Regulation schedule – OR – be using an allowable compliance option and reporting in the Truck Regulation Upload, Compliance and Reporting System (TRUCRS). 

What if I am currently out of compliance with the Truck and Bus Regulation? 

CARB can place a DMV registration hold on your vehicle now if it does not meet current regulatory requirements. 

Which vehicles are subject to the Truck and Bus Regulation? 

The Regulation applies to nearly all diesel-fueled trucks, buses, and school buses with a gross vehicle weight rating (GVWR) greater than 14,000 pounds. 
 
If your vehicle is exempt from another heavy-duty diesel regulation (see below for examples), it is likely subject to the Truck and Bus Regulation. 

• Solid waste collection vehicles 
• Drayage trucks
• Cargo-handling equipment 

If your vehicle is exempt from the Regulation, or has met the regulatory requirements, you will be able to register with the DMV. Reporting fleet and vehicle information to CARB, such as VIN numbers, may be needed to ensure that you are not mistakenly denied registration. 

Are there any extensions available?

If your vehicle is not compliant, you must pay your DMV registration fee to receive a 90-day Temporary Operating Permit (TOP) that will become active on the day your current vehicle registration expires. If you pay your registration fee by mail, you will receive a receipt from the DMV stating that you are not compliant and must visit a DMV field office to receive the 90-day TOP. If you have not operated the vehicle after the registration expiration date, you may request a refund by completing and submitting an Application for Refund ADM 399. Refunds are not given over the counter at a field office; refunds will come in the mail.

The Truck and Bus Regulation is California law. CARB’s staff, management, executive officers, and board members are all bound by the requirements of the regulation and do not have the authority to offer any additional extensions or exceptions not already provided for in the law.

Can I sell my non-compliant vehicle in California?

If you plan to sell a non-compliant vehicle subject to the regulation, you must provide a specific disclosure statement in writing to the buyer on the bill of sale, sales contract addendum, or invoice regarding the Truck & Bus Regulation. The rules do not cover selling a non-compliant vehicle out-of-state.

Where can I find more information? 

Visit TruckStop for information on the Truck & Bus Regulation requirements, financial assistance and DMV compliance verification. 

• DMV Registration Renewal Notice FAQ