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November 13th, 2013 Advisory

 The November 13th, 2013 Advisory explains how ARB will recognize efforts that owners have made to comply, by either working toward compliance or obtaining funding by the January 1, 2014 deadline by reporting in TRUCRS for the Good Faith Effort, or take advantage of proposed changes that would increase low-use thresholds, allow owners to opt-in to a number of flexibility provisions, and amend the "NOx Exempt" vehicle provisions, and granting additional time for fleets in certain areas to meet the PM filter requirements.

Link iconFact Sheets




Link iconRegulation/Provision Changes

  • Low Use
  • Low-Mile Const.
  • Agricultural
  • Good Faith
  • NOx Areas
  • Phase-In
  • The maximum threshold for low-use exempt vehicles has changed. Vehicles may be exempt if they travel less than 1,000 miles per with in California, or less than 5,000 miles per year total regardless of location. The hour limit has also been raised from 100 to 200 hours per year for low-use equipment. Annual reporting is required.
  • For more detailed information see the Low-Use Vehicle Exemption fact sheet.


  • The Low-Mileage Construction Truck Provision has now been reopened.
  • Previously the deadline to opt into this provision was March 30th, 2012. It is now January 31st, 2014.
  • For More information, see the Low Mileage Construction Truck Extension fact sheet.

  • The Low-Mileage Agricultural Provision has now been reopened
  • Previously the deadline to opt into this provision was April 30th, 2011. It is now January 31st, 2014.
  • For more information, see the Agricultural Vehicle Extension fact sheet.
  • The Air Resources Board will exercise flexibility for those exhibiting a Good Faith Effort to come into compliance with the regulation. A Good Faith Effort is defined as per the Advisory, and must be reported in the On Road Truck and Bus TRUCRS reporting system, where you will be able to select Good Faith Effort as a compliance option.

  • Additional areas are being added to the NOx Exempt areas, and the compliance date for vehicles in these areas is being re-evaluated.
  • What happens after January 1, 2015 in the new areas that don’t need to meet the January 1, 2014 PM compliance date?

    ARB is administratively providing additional flexibility to owners/operators in many rural areas.  However, details regarding what will happen after this period is over will be worked on in the upcoming rule-making process.  Please participate in that process by attending workshops, either in person or via webcast.  .

    • The Particulate Matter filter Phase-In Option and Credits have been reopened, and will work retroactively.
    • For More information, see the PM filter Phase-in Option and Credits fact sheet.



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