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California Motor Homes & Agricultural Vehicles Annual Compliance Requirements
- Vehicles subject to Clean Truck Check must be reported in CTC-VIS and compliant before they may operate on California public roads and highways. Annual compliance fees for each year will be due upon the vehicle’s compliance deadline.
- California registered motor homes (for recreational and emergency use), and vehicles that meet the requirements to be designated as agricultural vehicles, are only required to submit to emissions compliance testing once annually.
- Motor homes not for recreational use or emergency occupancy (e.g. commercial use motor homes) must follow these compliance requirements. Clean Truck Check Requirements for Vehicles Subject to Semi-Annual Compliance
- What is an agricultural vehicle? See details at Agricultural Vehicles Requirements Clean Truck Check | California Air Resources Board
- Compliance deadlines for all vehicles may be found in Tables I & II below.
- Compliance demonstration will require the payment of the annual compliance fee and the clearance of any outstanding enforcement violations for the vehicle in question.
- Emissions compliance testing requirements are effective starting on October 1, 2024. All compliance deadlines of January 1, 2025 or later will require a passing compliance test to be submitted as part of their compliance demonstration. Vehicles may submit tests no more than 90 days prior to the vehicle’s compliance deadlines. For example, a vehicle with a compliance deadline of February 1, 2025 may submit a passing emissions test as early as November 3, 2024.
- How must my vehicles be tested?
The testing requirements depend on whether your vehicle/engine is equipped with OBD or not.
OBD-equipped vehicles (2013 and newer diesel engines and 2018 and newer alternative fuel engines) are required to undergo a scan of the engine’s OBD data using a California Air Resources Board (CARB) certified OBD testing device.
Diesel non-OBD vehicles (2012 and older diesel engines) are required to complete a smoke opacity test and a visual inspection of the vehicle’s emissions control equipment, referred to in this program as the Vehicle Emissions Control Equipment Inspection. Alternative fuel non-OBD vehicles (2017 and older alternative fuel engines) are only required to complete the visual inspection and are not subject to the smoke opacity test requirement.
- How must my vehicles be tested?
- Non-compliance may result in DMV registration blocks and other enforcement action.
A. California Registered VehiclesCompliance deadlines for California registered vehicles are based on their DMV registration expiration dates. This applies to any vehicles historically registered with CA DMV even if they are now registered outside of California. Compliance Deadlines may be found in the vehicle’s CTC-VIS account, and these due dates are what are used to calculate your compliance status.
California Motor homes (including recreational and emergency use motor homes), and vehicles that meet the requirements to be classified as agricultural vehicles, are subject to annual compliance deadlines only.
- Motor homes not for recreational use or emergency occupancy (e.g. commercial use motor homes) must follow these compliance requirements. Clean Truck Check Requirements for Vehicles Subject to Semi-Annual Compliance
Vehicles are required to ensure that they have paid their annual compliance fee and have no outstanding enforcement violations as part of their compliance demonstration.
You may submit Clean Truck Check emissions tests up to 90 calendar days prior to the vehicle's compliance deadline.
B. Non-California Registered Vehicles and DMV Exempt Plated VehiclesThe following vehicles’ compliance deadlines are based on the last number of the vehicle’s Vehicle Identification Number (VIN).
Please refer to the table below. These vehicles will have reoccurring compliance deadlines every six months.
Compliance Deadlines may be found in the vehicle’s CTC-VIS account, and these due dates are what are used to calculate your compliance status.
You may submit Clean Truck Check emissions tests up to 90 calendar days prior to the vehicle's compliance deadline.
B. Non-California Registered Vehicles and DMV Exempt Plated VehiclesThe following vehicles’ compliance deadlines are based on the last number of the vehicle’s Vehicle Identification Number (VIN).
Please refer to the table below. These vehicles will have reoccurring compliance deadlines every six months.
Compliance Deadlines may be found in the vehicle’s CTC-VIS account, and these due dates are what are used to calculate your compliance status.
- Non-California registered vehicles
- NOT including vehicles historically registered with CA DMV (see Table I)
- DMV exempt plated vehicle- state and local government vehicles
- Federal government vehicles
As with CA registered vehicles, non-CA registered vehicles are required to ensure that they have paid their annual compliance fee and have no outstanding enforcement violations as part of their compliance demonstration.
You may submit Clean Truck Check emissions tests up to 90 calendar days prior to the vehicle's compliance deadline.
In the VIN-based compliance schedule, a vehicle’s emissions compliance testing deadline falls on last day of the compliance deadline month shown in Table above.
You may submit Clean Truck Check emissions tests up to 90 calendar days prior to the vehicle's compliance deadline.
In the VIN-based compliance schedule, a vehicle’s emissions compliance testing deadline falls on last day of the compliance deadline month shown in Table above.