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Truck and Bus Regulation

What if I missed the first Truck and Bus Regulation reporting deadline?
Now what do I do?



Late Reporting Options for Truck and Bus Owners
Last Updated:  July 11, 2012

This summary describes options for fleet owners who did not report on time to take advantage of flexibility in the Truck and Bus regulation. The regulation does not apply to state and local government vehicles, most solid waste collection trucks, drayage trucks, and public transit buses because they are already subject to other regulations.

Who should have reported by the March 30, 2012 deadline?
Heavier diesel vehicles with a gross vehicle weight rating (GVWR) more than 26,000 lbs. are required to meet particulate matter (PM) filter requirements starting January 1, 2012.  Diesel truck and bus owners that comply with the engine model year schedules and do not plan to use credits and extensions do not need to report.  However, owners that report by certain deadlines can take advantage of flexibility options in the regulation.  The following is a summary of who should have reported by March 30, 2012:

  • Small fleet owners (with three or fewer diesel vehicles) that have heavier vehicles with 1996 to 1999 model year engines.
  • All owners that choose to take advantage of the PM filter phase-in option, along with the associated credits (downsizing credits,
    early compliance credits, credits for adding cleaner vehicles).
  • Contractors and other owners that have low mileage construction trucks including 1 truck owners.
  • Reporting is not typically required for lighter vehicles with a GVWR from 14,001 to 26,000 lbs.; clean-up requirements
    begin January 1, 2015. 

I want to use the small fleet extension. I own three diesel trucks and one truck has a 1996 model year engine but I did not report before March 30, 2012.  May I still use this extension?
Any small fleet with 3 or fewer trucks or buses that owns a heavier truck with a 1996 to 1999 model year engine can still report to take advantage of the small fleet extension until January 1, 2014.  You may be subject to a penalty.  Small fleet owners that do not have 1996 to 1999 model year engines do not need to report until January of 2013 or 2014 to use the small fleet extension.  See the Small Fleet Compliance Schedule factsheet for more details.


I have a large fleet that met the 2012 compliance requirements, but I did not report.  May I still report to use flexibility options?
If you did not report by March 30, 2012, but your fleet of heavier trucks or buses was in compliance with either the Engine Model Year Schedule or the Phase-In Option since January 1, 2012, you may still report your vehicles and use the Phase-In option of section 2025(i).  However, you will not be able to use the other flexibility options or credits that required reporting by March 30, 2012, such as downsizing credits, credits for early addition of newer vehicles, and the low mileage construction truck extension.  Your fleet may still be subject to a penalty.

My fleet was late in meeting the January 1, 2012 compliance requirements.  May I still report to use flexibility options?
If you did not report by March 30, 2012 and your fleet did not comply by the
January 1, 2012 deadline, you are not eligible to use the PM filter phase-in option nor other flexibility options or credits that required reporting by the March 30, 2012 deadline.  You will need to demonstrate compliance with the Engine Model Year Schedule for heavy vehicles.  The fleet may be subject to a penalty and must be brought into compliance as soon as possible to reduce the potential penalties.  This can be achieved by retiring non-compliant vehicles, upgrading to newer engines, or installing PM filter retrofits.

Where can I find more information about the regulation?
Fact sheets, compliance tools, the regulatory program page are available at the TruckStop's Truck and Bus Regulation menu page or by calling ARB’s diesel hotline at (866) 6DIESEL (634-3735).



Please see the 1-866-6DIESEL Hotline's Most Frequently Asked Questions link for helpful information.