Beginning January 1, 2020, the California Air Resources Board’s (CARB) Truck and Bus Regulation (Regulation) will be enforced through a new automatic process. Legislation passed in 2017, requires that the California Department of Motor Vehicles (DMV) check that vehicles are compliant with, or exempt from, the Regulation. If a vehicle is not compliant with the rule, DMV can no longer register that vehicle. The new DMV compliance verification process will better enforce the regulation and level the playing field for businesses throughout California.
If a vehicle is not compliant with the rule, DMV will no longer register that vehicle, starting January 1, 2020.
DMV Compliance Verification FAQ
Compliance Scenario Document
Regulation Program Page ►
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 (ex: solid waste collection vehicles, drayage trucks and cargo-handling equipment), it is likely subject to the Truck and Bus Regulation.
The rule is based off the year of your current engine(s). Your older vehicle will need to be replaced or repowered with a 2010 or newer engine following the schedule below, unless it is exempt from the Regulation. Engine model years are typically one year behind your vehicle model year. There are also filter requirements for larger vehicles.
You will need to retire or repower your 2009 or older engine based on the compliance schedule below. There are two schedules, one for lighter trucks and buses and one for heavier trucks and buses. Look on your vehicle to determine the GVWR. See the compliance schedule below for details.
Currently, there are limited options available. These options require reporting in CARB's TRUCRS reporting system. If a vehicle does not qualify for these options, it must follow the engine model year compliance schedule.
Low-use vehicles travel less than 1,000 miles per year, including those that are not operated (even if they have a non-op registration). A vehicle that travels more than 1,000 miles annually can use the low-use vehicle exemption as long as it operates less than 1,000 miles within California each year. The low-use option allows the vehicle to be exempt from PM filter and engine replacement requirements. Annual odometer reporting is required. Annual reporting in the TRUCRS reporting system is required to demonstrate compliance with this option.
Low-use Exemption Fact Sheet
NOx Exempt Area Flexibility Option:
Vehicles that are operated in certain areas of the state with cleaner air may be eligible to use the NOx Exempt Area Extension to phase-in PM filter retrofits. Beginning January 1, 2020 vehicles can remain under the NOx option and avoid vehicle replacement or upgrade the vehicle based on the engine model year schedule. Annual reporting in the TRUCRS reporting system is required to demonstrate compliance with this option.
NOx Exemption Area Fact Sheet
The Truck Loan Assistance Program helps small business owners affected by the Truck & Bus Regulation to secure financing for upgrading their fleets with newer trucks. To be eligible, borrowers must have 100 or fewer employees, $10 million or less in annual revenue (averaged over three years), their primary economic effect in California, and 10 or fewer heavy-duty vehicles subject to the Truck & Bus Regulation. Other financial incentives are also available for the replacement of vehicles that have more than one year remaining before their compliance deadline.
Financial Assistance ►
Some vehicles will be difficult for the DMV to identify as compliant with the Regulation. CARB has developed the Excluded Diesel Vehicle Reporting (EDVR) System as a tool to assist vehicle owners who have had (or will have) their DMV vehicle registration denied inadvertently.
Special reporting may be required for vehicles converted from diesel to other fuels such as gasoline or dedicated natural gas, snow removal vehicles, personal use motor homes or recreational vehicles and personal use pickups (14,001-19,500 lbs. GVWR). In addition, while the model year of the vehicle may not meet the DMV Truck and Bus Regulation compliance verification requirement, the vehicle’s EMY may meet the regulatory requirements. Therefore, the engine may be compliant and you will need to provide additional information to CARB.