In-Use Off-Road Diesel Vehicle Regulation

This page last reviewed June 9, 2009



On July 26, 2007, the Air Resources Board (ARB) adopted a regulation to reduce diesel particulate matter (PM) and oxides of nitrogen (NOx) emissions from in-use (existing) off-road heavy-duty diesel vehicles in California. Such vehicles are used in construction, mining, and industrial operations. For more information, please call the diesel vehicle information hot line at (866) 6-DIESEL or (866) 634-3735.

You may also find information on the ARB's program for new off-road mobile equipment, instead of in-use PM control measures, or find information on ARB's program at off-road large spark-ignition equipment (e.g., forklifts).

The regulatory language and information on reporting and compliance tools can be accessed by clicking the quick links buttons above.

 
What's New?:
Posted June 9, 2009

To assist fleet owners with their compliance efforts, ARB staff is conducting an additional round of training seminars on the off-road regulation in Diamond Bar, Fresno, and Sacramento. These sessions will provide an in-depth presentation of the regulation and how to comply, as well as information about grant opportunities. In addition, participants will have an opportunity to speak one-on-one with providers of exhaust retrofit devices. This training will repeat the material covered in the first three rounds of training seminars conducted July 2008 through March 2009 and will also cover recent regulatory changes mandated by the State Legislature.

Posted June 5, 2009

ARB will conduct a public hearing on July 23, 2009, in San Diego to discuss modifications and clarifications to the in-use off-road diesel vehicle regulation. These proposed modifications include legislatively directed amendments and new incentives to spur early actions by fleets to reduce emissions.  ARB has posted the public notice and staff report.

Posted May 29, 2009

ARB staff has developed a DOORS Public Information Page that will enable members of the public to check the validity of Equipment Identification Numbers (EINs) they see in the field. The Page also allows access to a list of fleets that have completed initial reporting and been issued a Certificate of Reported Compliance by ARB. The DOORS Public Information Page can be found on the left navigation bar under Local Links or here.
 
Posted April 28, 2009

ARB has released the presentation for the April 29, 2009, workshop on the legislatively directed changes to the off-road diesel vehicle regulation. This workshop includes revisions from the April 7, 2009, workshop in Sacramento on the same topic, due to feedback provided at the workshop on the proposed implementation of the changes. The presentation may be downloaded here, and is also available as a handout here.

The presentation will be webcast, accessible from the webcast homepage, and for those attending the location is included on the workshop notice.

Posted April 27, 2009

ARB has released a document with examples showing how staff's proposed interpretation of the legislatively directed changes to the off-road diesel vehicle regulation will apply to fleets, in preparation for the April 29, 2009, workshop, which can be accessed online here

Posted April 24, 2009

ARB staff has released a revised proposal for how to implement the legislatively directed changes to the off-road regulation.  The revised proposal can be accessed online here

Posted April 20, 2009

Please note that due to the valuable input provided by stakeholders at the first workshop on the legislatively driven changes to the off-road diesel regulation held in Sacramento on April 7, 2009, staff will present some revised proposals at the workshop on April 29, 2009, in Diamond Bar.  Therefore, this workshop will also be webcast. The live internet broadcast will be available and can be accessed from the webcast homepage. In addition, the presentation containing the comments received from the Natural Resources Defense Council at the April 7, 2009, workshop in Sacramento can be accessed online here.  

Posted April 6, 2009

Staff have posted the presentation for the workshop on the legislatively driven changes to the off-road diesel regulation (also available in a handout format). As noted below, the workshops will be held on April 7, 2009, in Sacramento, and April 29, 2009, in Diamond bar. More information on the locations, time, and how to view the April 7, 2009, webcast are available on the workshop notice.

Posted March 26, 2009


The staff of the Air Resources Board invites all interested parties to participate in a set of public workshops to discuss how to implement recent legislatively directed changes to the Regulation for In-Use Off-Road Diesel-Fueled Vehicle Fleets. 

The workshops will be held in two locations, and staff will present the same materials at both workshops.  The workshops will be held on April 7, 2009, in Sacramento, and on April 29, 2009, in Diamond Bar.  For more detailed information, please review the workshop notice.  

For those unable to attend in person, a live internet broadcast will be available at our Sacramento workshop and can be accessed online here.  

Posted February 27, 2009

As part of the recently signed California budget, the California legislature has directed the Air Resources Board to make several changes to the in-use off-road diesel vehicle regulation.

PLEASE NOTE that the reporting deadlines for the off-road regulation remain in place and unchanged - April 1, 2009 for large fleets, June 1, 2009 for medium fleets, and August 1, 2009 for small fleets. For more information on reporting, please visit the reporting webpage, DOORS.

The changes ARB has been directed to make will lessen the requirements of the regulation for many large fleets in the early years of the regulation and include the following:
  1. Fleets who are now using their off-road vehicles less than they did as of July 1, 2007 may take credit for this reduced fleet activity to satisfy turnover and retrofitting requirements in 2010 and 2011.
  2. Fleets will be given credit (both PM and NOx) for any vehicle retirements made between March 1, 2006 and March 1, 2010 as long as total fleet horsepower decreased from the previous year.
  3. For the total cumulative turnover and retrofit requirements for the years 2011 through 2013, fleets may complete 20 percent of the total turnover and retrofitting by March 1, 2011, an additional 20 percent by March 1, 2012, and the balance by March 1, 2013.
ARB staff will be holding a workshop to discuss how to implement these changes and ways to mitigate for the loss in emission benefits caused by these changes sometime in March. Staff will release a public notice with details regarding this workshop as soon as possible.

When more specific information is available, it will be sent out via listserve and posted on this homepage.
Posted February 19, 2009

ARB staff has developed a poster that informs fleet owners about the off-road regulation and how to learn more about it. Copies of the poster are available free of charge by emailing Lauren Chew at lchew@arb.ca.gov and can also be downloaded from our website here in full poster size or standard letter size (8.5" by 11").

Posted January 23, 2009

On January 22, 2009, the Air Resources Board amended the off-road regulation to extend the deadline for double credit for installing exhaust retrofits by 10 months to January 1, 2010. This amendment also allows fleets to receive credit for retrofits which are ordered, but delayed due to the manufacturer or installer, if the retrofits are ordered by September 1, 2009.

The Board also asked the staff to provide the Board an update in late 2009 after initial reporting is complete. More information on the staff's initial report to the Board is available in the staff report for the January 22, 2009, hearing, available online here.

   
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