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Off Road Diesel Powered Vehicles' Regulations.
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Off Road Diesel Vehicles

Off-Road Diesel Vehicle Regulation Compliance Requirements Summary

The Off-Road regulation applies to self-propelled diesel fueled vehicles that cannot be registered or licensed to drive on-road. Qualifying vehicles are 25 horsepower and greater. Examples are loaders, tractors, skid steers, backhoes, and two-engine cranes. This regulation does not apply to stationary equipment or portable equipment such as generators. (Portable equipment has a separate set of regulations. We provide assistance in this area as well. Please refer to the Portable Equipment tab on the website.)

What you need to know

The following items are enforceable and fines are being assessed for non-compliance:

Reporting Vehicles

All off-road vehicles are required to be reported beginning 2009.  Fleets that have not reported should do so as soon as possible.  Fleets that have not yet reported and are found to be in violation by enforcement personnel before they report themselves will be subject to enforcement action, including fines.  Civil penalties are not to exceed one thousand dollars or ten thousand dollars respectively for each day in which the violation occurs, which can be applied to each vehicle that is not reported.

For more information go to: www.arb.ca.gov/ordiesel


All vehicles subject to the off-road regulation are to be labeled on both sides of the machine within 30 days of receiving the equipment identification number (EIN). In addition, all previously reported vehicles should have the secondary label in place by January 1, 2013.

All captive attainment fleets must be labeled as well but the background is green with white lettering instead of a red background with white lettering.

Where can I buy labels? BeCarbCompliant offers a full range of labeling services. Call us today to get the latest pricing.

For more information go to: http://www.arb.ca.gov/msprog/ordiesel/faq/faq-labeling.pdf

This is an example of an off road tractor that is currently compliant with the California Air Resources Board.

Idling Policy

Idling Limit: No vehicles or engines subject to this regulation may idle for more than 5 consecutive minutes. Idling of a vehicle that is owned by a rental company is the responsibility of the renter or lessee, and the rental agreement should so indicate. The idling limit does not apply to:

  • Idling when queuing
  • Idling to verify that the vehicle is in safe operating condition
  • Idling for testing, servicing, repairing or diagnostic purposes
  • Idling necessary to accomplish work for which the vehicle was designed (such as operating a crane)
  • Idling required to bring the machine system to operating temperature
  • Idling necessary to ensure safe operation of the vehicle
  • Written Idling Policy: As of March 1, 2009, medium and large fleets must also have a written idling policy that is made available to operators of the vehicles and informs them that idling is limited to 5 consecutive minutes or less

Seller’s Disclosure

“An off-road heavy duty diesel or alternative-diesel vehicle operated in California may be subject to the California Air Resources Board Regulation to Reduce Particulate Matter and Criteria Pollutant Emissions from In-Use Heavy Duty Diesel Vehicles. It, therefore, could be subject to exhaust retrofit or accelerated turnover requirements to reduce emissions of air pollutants.

For more information go to: www.arb.ca.gov/msprog/ordiesel/knowcenter.htm

Annual Reporting Deadline

An annual update is required by March 1st of each year and must include a signed statement, called a Responsible Official Affirmation of Reporting (ROAR), affirming that the fleet information reported is accurate and that the fleet is in compliance.

The first report for large fleets is due yearly from March 2012 - 2023. The deadline for medium fleets is March 2016 - 2023 and March 2018 – 2023 for small fleets.

It is our goal to educate all involved to prevent companies from being fined for non-compliance. Please contact us at your earliest convenience at (877) 574-8289. We look forward to hearing from you soon.

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