In-Use Off-Road Diesel Vehicle Rule - What's New Archive

This page last reviewed December 28, 2010

(All documents are provided in PDF unless otherwise indicated.)


Posted October 11, 2010

On October 7, representatives from the Air Resources Board and the Associated General Contractors of America trade organization agreed on proposed changes to the Regulation for In-Use Off-Road Diesel Fueled Fleets (off-road regulation) that will offer affected businesses additional time and more flexible options for compliance. For more information see the News Release.

Based on this agreement, changes have been made to ARB’s presentation regarding the proposed amendments to the off-road regulation, which will be presented on Tuesday, October 12, 2010, in Fresno. The off-road presentation addendum is posted here.

   
Posted September 29, 2010

The presentation and proposed regulation language and fact sheets have been posted for the upcoming September/October workshops to discuss proposed amendments to the Regulation for In-Use Off-Road Diesel Fueled Fleets (off-road regulation), the In-Use Heavy-Duty Diesel-Fueled Vehicles Regulation (truck and bus regulation), the In-Use On-Road Diesel-Fueled Heavy-Duty Drayage Trucks Regulation (drayage truck regulation), the Heavy-Duty Vehicle Greenhouse Gas Emission Reduction Regulation (tractor-trailer GHG regulation), and the Off-Road Large Spark-Ignition Engine Fleet Requirements (LSI fleet regulation).

   
Posted September 15, 2010

The workshop notice for the upcoming workshops in September and October is now available. At these workshops, staff will discuss amendments to the In-Use Heavy-Duty Diesel-Fueled Vehicles Regulation (truck and bus regulation), the Regulation for In-Use Off-Road Diesel Fueled Fleets (off-road regulation), the In-Use On-Road Diesel-Fueled Heavy-Duty Drayage Trucks Regulation (drayage truck regulation), the Heavy-Duty Vehicle Greenhouse Gas Emission Reduction Regulation (tractor-trailer GHG regulation), and the Off-Road Large Spark-Ignition Engine Fleet Requirements (LSI fleet regulation).

Dates and Locations:. All workshops are scheduled from 10:00 AM to 3:00 PM. For additional details, please see the workshop notice.

Sacramento
Thursday, September 30, 2010
WEBCAST AVAILABLE

El Monte
Monday, October 4, 2010

San Diego
Tuesday, October 5, 2010

Fresno
Tuesday, October 12, 2010
(Live video feed in Bakersfield and Modesto)

   
Posted August 31, 2010

The workshop presentations and updated agenda for the upcoming August/September workshops have been posted.

Please note that the agenda for these workshops have changed. Staff will not be providing new regulatory proposals at this time. Instead, staff will be soliciting feedback on the revised emission inventories used when developing the Regulation for In-Use Off-Road Diesel Fueled Fleets (off-road regulation), the In-Use Heavy-Duty Diesel-Fueled Vehicles Regulation (truck and bus regulation), and the In-Use On-Road Diesel-Fueled Heavy-Duty Drayage Trucks Regulation (drayage truck regulation). Additionally, staff will give a presentation summarizing the recently released report: "Estimate of premature deaths associated with fine particle pollution (PM2.5) in California based on U.S. EPA's methods".

Finally, staff will hold an open comment period to solicit suggestions for further regulatory amendments, given the recently available information discussed in the workshop. Workshops on revised staff regulatory proposals will be held in September/October, 2010. To accommodate this additional series of workshops, and to provide time for public comment, staff will delay proposing regulatory amendments to the Board until December 2010.

The hard copy materials will also be available at each location on the day of the meeting.

   
Posted August 25, 2010

Staff of the Air Resources Board (ARB) is making some changes to the upcoming series of 5 statewide workshops pertaining to the Regulation for In-Use Off-Road Diesel Fueled Fleets (off-road regulation), the In-Use Heavy-Duty Diesel-Fueled Vehicles Regulation (truck and bus regulation), and the In-Use On-Road Diesel-Fueled Heavy-Duty Drayage Trucks Regulation (drayage truck regulation).

Staff is postponing tomorrow’s workshop in Fresno (August 26th) to Friday, September 3, 2010. The time and locations of the workshop, including videoconferencing with Bakersfield and Modesto, remains unchanged.

The other workshops remain in place:
El Monte - Tuesday, August 31, 2010
San Diego - Wednesday, September 1, 2010
Sacramento - Tuesday, September 7, 2010
Oakland - Wednesday, September 8, 2010

At all of the workshops, staff will provide an update on the changes to the emissions inventories underlying the off-road regulation, the truck and bus regulation and the drayage truck regulation as originally planned. However, ARB staff needs additional time to evaluate and explore appropriate regulatory proposals and consider their economic impact on affected stakeholders, determine the effect of any changes on emissions over the next decade, and determine how to best protect public health in light of the health impacts of fine particle pollution (PM2.5) currently underway. Once this work is complete, ARB staff will schedule additional workshops regarding the modified proposals so that we may receive stakeholder feedback and comments on the proposed amendments.

The workshop notice and presentation can be viewed here.

   
Posted August 13, 2010

The workshop notice for the upcoming workshops in August and September is now available. At these workshops, staff will discuss amendments to the In-Use Heavy-Duty Diesel-Fueled Vehicles Regulation (truck and bus regulation), the Regulation for In-Use Off-Road Diesel Fueled Fleets (off-road regulation), and the In-Use On-Road Diesel-Fueled Heavy-Duty Drayage Trucks Regulation (drayage truck regulation). In addition, the revisions to the off- and on-road emissions inventories used during the development of both regulations will be discussed.

Dates and Locations: All workshops are scheduled from 10:00 AM to 5:00 PM. For additional details, please see the workshop notice.

Fresno
Thursday, August 26, 2010
(Live video feed in Bakersfield and Modesto)
El Monte
Tuesday, August 31, 2010
San Diego
Wednesday, September 1, 2010

Sacramento
Tuesday, September 7, 2010
WEBCAST AVAILABLE
Oakland
Wednesday, September 8, 2010
   
Posted August 3, 2010

Staff held workshops in June and July regarding proposed amendments to the Truck and Bus, Off-Road, Tractor-Trailer GHG, and Drayage Truck regulations. At the workshops, stakeholders requested additional time to review and comment on the following:

  • Details of planned emissions inventory updates for trucks and off-road vehicles,
  • Specific draft regulatory language,
  • ARB’s revised report on fine particulate matter (PM2.5) mortality estimates, a draft of which will be released later this summer, and
  • Proposed changes to the Drayage Truck Regulation.
To address stakeholders’ requests, the Board Hearing to consider the proposed amendments, currently slated for September 2010, will be moved to November. In the interim, staff will hold workshops in August and September to discuss the revised emission inventory and the proposed amendments. This delay in the hearing date will provide sufficient time to hold the workshops and to make any necessary adjustments after the workshops. A workshop notice will be forthcoming.
   
Posted June 22, 2010

The workshop presentations have been posted for the upcoming June/July workshops to discuss proposed amendments to the In-Use Heavy-Duty Diesel-Fueled Vehicles Regulation (truck and bus regulation), the Heavy-Duty Vehicle Greenhouse Gas Emission Reduction Regulation (tractor-trailer GHG regulation), and the Regulation for In-Use Off-Road Diesel Fueled Fleets (off-road regulation). A document detailing proposed minor ammendments and clarifications to the in-use off-road diesel vehicle regulation has also been posted.

   
Posted June 3, 2010

The workshop notice for the upcoming workshops in June and July is now available. At these workshops, staff will discuss proposed amendments to the In-Use Heavy-Duty Diesel-Fueled Vehicles Regulation (truck and bus regulation), the Heavy-Duty Vehicle Greenhouse Gas Emission Reduction Regulation (tractor-trailer GHG regulation), and the Regulation for In-Use Off-Road Diesel Fueled Fleets (off-road regulation). In addition, an updated on the emission inventories for the truck and bus and off-road regulations will be provided.

   
Posted May 24, 2010

Surveys have been posted to solicit fleet data, financial information, input regarding regulatory amendments for the Off-Road regulation, activity and load factor data. The result of these analyses along with information obtained from other sources will help staff craft the proposed modification to the Truck and Bus and the Off-Road regulations and evaluate the cumulative effects of the amendments. Any information that is marked confidential will remain confidential. The deadline for submitting the survey information is June 1, 2010. The surveys are posted on both the Truck and Bus and the Off-Road web sites.

   
Posted May 18, 2010

A video recording of the May 6, 2010 workshop presentations about the emission inventory updates and proposed amendments for the Regulation for In-Use Off-Road Diesel Fueled Fleets (off-road regulation) and In-Use On-Road Diesel Vehicle Regulation (truck and bus regulation) is now available for those who could not participate.

   
Posted May 5, 2010

The presentation for the three May workshops to discuss the emission inventory updates and proposed amendments for the off-road regulation and the truck and bus regulation is now posted. The first of these three workshops will be on May 6, 2010 in Sacramento. More information and a full-page version of the presentation is available on the meetings homepage.

   
Posted April 30, 2010

The workshop notice for the upcoming May workshops is now available. These workshops will discuss updates to the off- and on-road emissions inventories used during the development of both regulations. Following the inventory discussion, staff will discuss and solicit input regarding potential amendments to the off-road and truck and bus regulations.

   
Posted April 21, 2010

The Meeting Notice for the April 22, 2010 Board meeting where staff will give an update regarding the off-road, and truck and bus regulations is now posted.

Please see the notice for hearing topics. The location is:

Byron Sher Auditorium
Air Resources Board
1001 I Street
Sacramento, California 95814

The public may present comments relating to the regulations orally or in writing at the meeting, and may be submitted by postal mail or by electronic submittal before the meeting. To be considered by the Board, written submissions not physically submitted at the meeting must be received no later than 12:00 noon, April 21, 2010, and addressed to the following:

Postal mail: Clerk of the Board, Air Resources Board
1001 I Street, Sacramento, California 95814

The public may also submit comments electronically here by selecting "onoffroad10".

   
Posted April 1, 2010

The transcript for the March 11, 2010 Executive Officer Hearing on the Off-road Regulation has now been posted.

Additional presentations from guest speakers are available on the meetings page.

   
Posted March 17, 2010

The training presentation for the webcast on March 18, 2010, from 9:00 AM to 11:30 AM is now available: Full page version or Handouts.

Questions may be emailed in during the presentation to doors@arb.ca.gov

   
Posted March 10, 2010

The ARB staff presentation for the March 11, 2010 Executive Officer Hearing on the Off-road Regulation has now been posted (also available in handout format). For those that cannot attend in person, the hearing will also be webcast. To view the live webcast, on the day of the Hearing please go to:
http://www.calepa.ca.gov/broadcast/?BDO=1

Additional presentations from guest speakers are available on the meetings page.

   
Posted March 2, 2010

In response to a petition filed on January 11, 2010 by the Associated General Contractors of America, the Executive Officer of the California Air Resources Board will conduct a public hearing at 9:00 A.M. on March 11, 2010, to take testimony and other relevant information on the need for further amendments to off-road diesel vehicle regulation.

The Hearing Notice is now available. See page 6 of the notice for hearing topics. The location is:

Byron Sher Auditorium
Air Resources Board
1001 I Street
Sacramento, California 95814

The public may present comments orally or in writing at the hearing. The public may also submit comments in writing or by email before the hearing, or after the hearing until the deadline listed below. Comments received by ARB will be included as part of the information and testimony collected, but they are not part of any official rulemaking record.

To be considered by the Executive Officer, written submissions not physically submitted at the hearing must be received no later than 5:00 p.m., March 18, 2010, and addressed to the following.

Postal mail: Clerk of the Board
Air Resources Board
1001 I Street
Sacramento, California 95814

The public may also submit comments electronically here by selecting "inuse2010".

   
Posted February 26, 2010

The Air Resources (ARB) has issued an advisory providing clarification regarding enforcement of the In-Use Off-Road Diesel Vehicle Regulation. In summary, because of the continuing effects of the economy on industries that use off-road diesel vehicles, in particular the construction industry, and because ARB currently lacks authorization from the United States Environmental Protection Agency (U.S. EPA) to enforce certain aspects of the regulation, effective immediately, no enforcement action will be taken for noncompliance with the March 1, 2010 emission performance provisions of the regulation, which include:

  1. Requirements for vehicle retrofit and replacement
  2. Limitations on adding higher emitting Tier 0 and Tier 1 vehicles
  3. Requirements for new fleets to meet fleet average targets
During this enforcement delay, fleets will not be retroactively cited for non-compliance with these provisions. This enforcement delay will remain in place until U.S. EPA grants authorization to California to enforce all provisions of the regulation. At that time, ARB will provide fleets with up to an additional 6 months to comply with all requirements, as we’ve done previously with other regulations.

However, all other provisions of the regulation not requiring U.S. EPA authorization, including the labeling, reporting and idling limits, remain in effect and are enforceable.

This advisory is being issued in coordination with ARB staff’s continuing evaluation of the emission impact of current economic conditions. As part of that effort, in late summer 2010, the Board will consider additional amendments to both this regulation and the Truck and Bus Regulation that would be designed to provide additional regulatory relief to affected fleets while still achieving California’s clean air commitments.

Also, in support of this evaluation, a hearing will be held in Sacramento on March 11, 2010, before the ARB’s Executive Officer to take testimony and other relevant information on the need for further amendments to the regulation to address the economic recession confronting the State and the adverse impacts that the recession has caused the construction and other industries that operate off-road vehicles. As the Board has already directed staff to provide an update on the regulation at its April 2010 meeting, any information and testimony collected at this hearing will be compiled and included as part of that update. A public hearing notice for this meeting will be released shortly.
   
Posted January 29, 2010

To assist large fleets with their compliance efforts, ARB staff will conduct a FREE training seminar at 9AM on February 10, 2010, in Sacramento.  The seminar will be geared towards helping large fleets understand the March 1, 2010, large fleet compliance requirements, as well as providing information on reduced activity credits and retrofit visibility.  For more information on the seminar, see the training flyer.

   
Posted January 14, 2010

ARB has released the Retrofit Visibility Guide and Exemption Application, detailing how a vehicle may be retrofit without impairing visibility, and how to apply for exemptions from the 2010 retrofit requirements if a vehicle cannot be retrofit without creating an impairment. Both are available on the retrofit safety page. ARB has also released an FAQ detailing how retrofit visibility and exemptions will interact with the regulation requirements for fleets that have installed retrofits or have retrofits on order, available on the same page.

   
Posted January 11, 2010

The California Office of Administrative Law has approved changes to the off-road regulation from two 2009 rulemakings and filed them with the  California Secretary of State, thereby making them effective.  The changes include the extension of  double retrofit to January 1, 2010 approved by the Air Resources Board (ARB) on January 22, 2009, and the new Assembly Bill 8 2X (AB 8 2X) credits for fleets impacted by the recession. For further information on the January 2009 changes, please visit in-use off-road diesel-fueled fleets page. For further information on the new AB 8 2X credits, please see the early credit fact sheet.

   
Posted November 19, 2009

ARB has posted a new vdecs page with information regarding what VDECS are available for off-road vehicles and other answers to common questions regarding the use of VDECS for compliance with the in-use off-road diesel vehicle regulation. We have also posted further information regarding the interim retrofit visibility policy, and vehicles that have been retrofit with zero visibility impairment on the off-road VDECS safety page. Further information on these and other topics related to retrofit visibility will be added as soon as possible.

   
Posted November 3, 2009

The off-road diesel vehicle regulation was amended in December, 2008, in January, 2009, and most recently in July, 2009. For the convenience of stakeholders so that they do not have to view four documents to see the pending changes, staff has created an informal updated/combined version of the regulatory language containing the pending changes – accessible here.

These amendments are not as yet in effect in that they have not been formally approved by the Office of Administrative Law or certified by the California Secretary of State. ARB will post, on this website, updated operative final regulation orders as they are certified by the Secretary of State.

   
Posted October 21, 2009

ARB and the Division of Occupational Safety and Health (Cal/OSHA) have agreed on an interim policy to address retrofit visibility concerns for off-road diesel vehicles. The interim policy will exempt any vehicles that cannot be retrofit without impairing the operator’s vision to the front, sides, or rear of the vehicle from the March 1, 2010 retrofit requirement for large fleets of off-road diesel vehicles. ARB will release details regarding the method to measure visibility impairment, as well the process for applying for an exemption as soon as possible.

For more information and a background on this issue, you may view the interim policy online.

Fleets that must complete retrofits in 2010 should begin by retrofitting those vehicles for which retrofits may be installed without impacting operator visibility (for example, under the hood or out of site of the operator).

   
Posted October 8, 2009

To help fleets better understand what the July 2009 changes to the off-road regulation mean and how to take advantage of the new reduced activity and reduced fleet size credits, ARB staff have released updated versions of the fleet average calculators detailing the provisions of the new credits available to fleets. We have also released a new guide detailing the provisions of the new credits available to fleets. This guide, as well as a new overview of the regulation and overview of large fleets' 2010 requirements, are posted on the knowledge center.

   
Posted July 31, 2009

On July 23, 2009, the Air Resources Board amended the off-road regulation to (1) provide new credits for fleets that have experienced drops in vehicle activity and/or that have reduced their fleet size, (2) delay some of the 2011 and 2012 requirements until 2013, and (3) add new incentives to spur early retrofits and repowers. More information on the amendments is available at the rulemaking information page.

   
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.

   
Posted December 5, 2008

ARB will conduct a public hearing on January 22-23, 2009, in Sacramento to discuss minor modifications and clarifications to the in-use off-road diesel vehicle regulation. These modifications include an extension of the early double credit deadline for the installation of retrofits. At the hearing, staff will also give an update on the status of implementation of the regulation. ARB has posted the public notice and staff report.

   
Posted November 25, 2008

ARB invites all interested parties to a workshop to discuss minor modifications and clarifications to the off-road diesel vehicle regulation. These modifications include, among other things, an extension of the early double credit deadline for the installation of verified diesel emission control strategies (VDECS). Information on the time and location of the workshop is available in the workshop notice.

   
Posted october 29, 2008

To assist fleet owners with their compliance efforts, ARB staff is conducting another series of four statewide training seminars on the off-road regulation in South Lake Tahoe, Fortuna, Victorville, and Sacramento. These training seminars will provide an in depth presentation of the regulation and how to comply, a review of exhaust retrofit products available, and information about grant opportunities. In addition, participants will have an opportunity to speak one-on-one with providers of exhaust retrofit devices. Following the general training session fleet owners will have the opportunity to meet with an ARB staff member for 30 minutes to obtain training on reporting via the Diesel Off-Road On-Line Reporting System (DOORS).

   
Posted October 6, 2008

We have posted a list of the low-population counties in California, and a list of fleets in other counties that have applied for and been granted low-population municipal fleet status by the Air Resources Board using the criteria in title 13, CCR, section 2022.1(c)(4). The listed fleets and municipal fleets in low-population counties may meet the requirements for small fleets regardless of their total fleet size.

   
Posted September 25, 2008

We have posted the VDECS presentation and staff presentation for the upcoming Off-road Implementation Advisory Group (ORIAG) meeting, which will be held on Friday, September 26.  The public portion of the meeting will be from 3:00 p.m. to 5:00 p.m.  The meeting will also be webcast. Information regarding the webcast is at http://www.calepa.ca.gov/broadcast/?BDO=1

   
Posted September 18, 2008

On March 1, 2009, the off-road diesel regulation will require all medium and large fleets to have a written idling policy that is available to vehicle operators. ARB has released guidelines for the written idling policy, which include suggested information as well as additional information regarding fines.

ARB staff have also posted updated versions of the Large/Medium and Small Off-Road Fleet Average Calculators for the in-use off-road diesel vehicle regulation. The calculators have been revised to correct minor errors and to enhance the Summary Results page.

Additionally, ARB would like to clarify that the off-road diesel regulation has not been delayed, as was incorrectly reported in recent news articles. C onsideration of the diesel truck and bus regulation was postponed for two months; however, this does not impact the off-road diesel regulation.

   
Posted September 8, 2008

ARB has a released an enforcement advisory regarding the requirements to use on-road certified engines in on-road registered vehicles, and the actions required by the owners of workover rigs to comply with the in-use off-road diesel vehicle regulation.

   
Posted September 3, 2008

The Diesel Off-road On-line Reporting System (DOORS) is now available.

Fleet owners may use this tool to report diesel vehicles that are covered by the off-road regulation to ARB, and receive Equipment Identification Numbers (EINs) for their vehicles. The reporting homepage linked above contains links to user guides and a description of the reporting fields and will be updated regularly with new guides and answers to frequently asked questions regarding reporting requirements as they become available.

   
Posted August 26, 2008

We have posted the agenda and meeting notice for the Off-road Implementation Advisory Group (ORIAG) meeting, which will be held on Friday, September 26 in Sacramento.  The subcommittee kick-off meetings for ORIAG members only will take place from 8:00 a.m. to 3:00 p.m. in  Training Room 1.  The general ORIAG meeting, which is open to the public, will be from 3:00 p.m. to 5:00 p.m. in the  Training Room 1.

The meeting will also be webcast.  Information regarding the webcast is at http://www.calepa.ca.gov/broadcast/?BDO=1
   
Posted August 26, 2008

On August 12, 2008, the Air Resources Board submitted to the U.S. Environmental Protection Agency a Request for Authorization Determination pursuant to Clean Air Act Section 209(e) for California's In-Use Off-Road Diesel Vehicle Regulation.  This included the Request for Authorization and Attachment 1: Authorization Support Document.  The regulation became operative on June 15, 2008.  

   
Posted August 22, 2008

Staff have completed five of the twelve planned free training seminars, and the seminars have been well-received. Further information regarding the upcoming training sessions, including the PowerPoint presentation, can be found on our homepage for workshops and meetings. Interested stakeholders are encouraged to attend and may RSVP to Eric Brown at ebrown@arb.ca.gov.

For the fleets that are unable to attend one of the twelve free statewide training seminars on the off-road regulation, the ARB will be webcasting the Sacramento session. The training will be held on Friday, August 29, 2009, in Sacramento from 9:00 a.m. to 1:00 p.m. Information regarding the webcast is at the EPA webcast homepage.

ARB staff are posting answers to frequently asked questions concerning the In-Use Off-road Diesel Vehicle regulation. To date, staff have posted answers to questions concerning off-road diesel vehicles that may require registration as portable equipment, labeling, early credit, determining engine model year, and public fleet size.

   
Posted July 30, 2008

ARB has partnered with the State Treasurer's Office to offer the Pilot Off-Road Loan Incentives (POLI) program, which provides loan guarantees to eligible small businesses that operate in the San Joaquin Valley to purchase ARB-verified exhaust retrofits for off-road vehicles.

   
Posted July 16, 2008

We have posted the minutes from the June 25, 2008 general ORIAG meeting and the ORIAG subcommittee meetings.

   
Posted June 30, 2008

To assist fleet owners with their compliance efforts, ARB staff is conducting a series of statewide training seminars on the off-road regulation.  These training seminars will provide an in depth presentation of the regulation and how to comply, a discussion of record keeping and vehicle labeling requirements, a review of exhaust retrofit products available, and information about grant opportunities.  In addition, participants will have an opportunity to speak one-on-one with providers of exhaust retrofit devices.

   
Posted June 25, 2008

We are having technical difficulties for the off-road implementation advisory group (ORIAG) for today’s meeting at El Monte.  You can still participate in the meeting by dialing: (888) 810-4789.  At the request for passcode, enter: 18494.

   
Posted June 24, 2008

We have posted the enforcement advisories for the two portions of the off-road regulation that became effective June 15, 2008 – the idling limits and seller disclosure requirements.

We have also posted the presentations for the Off-road Implementation Advisory Group (ORIAG) meeting, which will be held tomorrow, June 25, 2008, in El Monte.  

Finally, we have posted a frequently asked question regarding vehicles such as rock drills and quarrying equipment that may be subject to the in-use off-road diesel regulation as well as portable equipment registration requirements.

   
Posted June 20, 2008

We have posted the agenda and meeting notice for the Off-road Implementation Advisory Group (ORIAG) meeting, which will be held on Wednesday, June 25 in El Monte.  The subcommittee kick-off meetings for ORIAG members only will take place from 9:00 a.m. to 12:00 p.m. in the Auditorium and in the conference room adjoining the Auditorium.  The general ORIAG meeting, which is open to the public, will be from 1:00 p.m. to 4:00 p.m. in the Auditorium.

The meeting will also be webcast.  Information regarding the webcast is at http://www.calepa.ca.gov/broadcast/?BDO=1

   
Posted May 16, 2008

The California Office of Administrative Law approved the in-use off-road diesel vehicle regulation, including the final regulation order, and filed it with the Secretary of State on May 16, 2008. The regulation will become effective on June 15, 2008.

The meeting will also be webcast.  Information regarding the webcast is at http://www.calepa.ca.gov/broadcast/?BDO=1

   
Posted May 9, 2008

We have posted the agenda and staff presentation for the first Off-road Implementation Advisory Group (ORIAG) meeting, which will be held on Monday, May 12 from 1:30 pm until 5 pm in Sacramento. 

The meeting will also be webcast.  Information regarding the webcast is at http://www.calepa.ca.gov/broadcast/?BDO=1

   
Posted April 29, 2008

Staff have posted an ORIAG member list and ORIAG meeting information for the newly formed Off-Road Implementation Advisory Group (ORIAG). The first meeting will be held May 12, 2008 in Sacramento.
   
Posted April 9, 2008

Staff have posted the Final Rulemaking Package for the for In-Use Off-road Diesel Vehicle Regulation. The package was filed with the Office of Administrative Law (OAL) on April 4, 2008, and OAL has until May 16, 2008, to make a determination. The package includes the Final Statement of Reasons, which includes ARB's responses to all comments received on the regulation during the public comment periods.
   
Posted March 5, 2008

Staff have posted the third 15-Day Notice of Public Availability of Modified Text and Availability of Additional Documents for the Proposed In-Use Off-Road Diesel Regulation. The deadline for public comment is March 20, 2008.
   
Posted February 8, 2008

ARB staff have posted updated versions of the Large/Medium and Small Off-Road Fleet Average Calculators for the in-use off-road diesel vehicle regulation.
   
Posted February 5, 2008

Staff have posted the second 15-Day Notice of Public Availability of Modified Text and Availability of Additional Documents for the Proposed In-Use Off-Road Diesel Regulation. The deadline for public comment is March 6, 2008.
   
Posted January 11, 2008

ARB staff would like to form an off-road implementation advisory group (ORIAG), which will be an informal committee established by staff to assist it in implementing the in-use off-road diesel vehicle regulation. We would like to invite interested parties to apply for membership in the ORIAG. Please see our invitation and application for membership.
   
Posted December 12, 2007

Staff have posted the first 15-Day Notice of Public Availability of Modified Text and Availability of Additional Documents for the Proposed In-Use Off-Road Diesel Regulation. The deadline for public comment is December 28, 2007.

Staff is currently developing language for section 2449.3 to address the Board’s directive to allow local air districts to opt into a program that would allow them to achieve additional NOx reductions by providing incentive funding to affected fleets. The language for section 2449.3 will be be made available for public comment at a later date.
   
Posted October 18, 2007

Staff have posted an informational hand-out regarding early actions that can help fleets reduce or spread out their costs of compliance with the in-use off-road diesel vehicle regulation.
   
Posted September 28, 2007

Staff is now taking time to review and consider the informal comments received on the proposed regulatory changes. Staff plans to formally release the "15-day package," which will contain these changes as well as othe minor modifications, in October.

Staff have also provided a set of updated fact sheets describing the adopted in-use off-road diesel vehicle rule
   
Posted September 6, 2007

At the July 26, 2007, Air Resources Board meeting, the Board directed staff to make several changes to the in-use off-road diesel vehicle regulation. The following document provides draft regulatory language implementing the Board's direction.  Staff would like to solicit feedback on these proposed changes by Friday, September 14.

Staff has also provided an updated overview fact sheet describing the adopted in-use off-road diesel vehicle rule.
   
Posted August 20, 2007

At the July 26, 2007, Air Resources Board meeting, the Board unanimously voted to adopt the proposed in–use off-road diesel vehicle regulation, along with the some additional modifications. Please read more about this decision and the approved modifications.

Updated versions of the Fact Sheets, Fleet Average Calculator, and regulatory language coming soon.
   
Posted July 25, 2007

ARB staff is proposing additional changes to the proposed In-Use Off-Road Diesel Vehicles regulation, which was initially published on April 5, 2007 and revised on May 23, 2007. These additional changes will be presented to and considered by the Air Resources Board on Thursday, July 26, 2007. These changes are contained within the "Revised Proposed Regulatory Language" document.

ARB staff has prepared a discussion paper for the Board meeting tomorrow summarizing some outstanding issues related to the proposed in-use off-road diesel vehicle regulation. 
   
Posted July 16, 2007

The ARB staff presentation for the July 16 workgroup meeting has been posted. 
   
Posted June 18, 2007

The ARB staff presentation for the June 18 workgroup has been posted. 
   
Posted June 5, 2007

ARB staff would like to invite you to participate in two workgroup meetings in Sacramento. The first one will be held on June 18 to discuss overall costs of the proposed in-use off-road diesel vehicle regulation. The second one will be held on July 16 to discuss costs the proposed rule may impose on individual fleets. Both meetings will also be available via webcast.
   
Posted May 23, 2007

Notice of staff's suggested changes to the Proposed Regulation for In-Use Off-Road Diesel Vehicles.

ARB staff is proposing several modifications to the proposed In-Use Off-Road Diesel Vehicles regulation, which was initially published on April 5, 2007. The suggested modifications will be presented to and considered by the Air Resources Board on Friday, May 25, 2007. These modifications are contained within the "Staff Suggested Changes to be Presented at Board Hearing" document. 
   
Posted May 18, 2007

Notice of Extended Deliberations on the Proposed Regulation for In-Use Off-Road Diesel Vehicles.

As previously announced, the Air Resources Board (the Board or ARB) will consider the proposed regulation for in-use off-road diesel vehicles on Friday, May 25, 2007 at the Marriott Hotel's Grand Ballroom in Del Mar, California. A hearing will begin at 8:00 a.m. and conclude no later than 5:00 p.m. All persons wishing to testify on this matter will be afforded the customary three minutes to make their remarks. In addition, written comments of any length may be submitted for the Board's consideration.

To ensure that all potential witnesses can be accommodated and to give the Board sufficient time to weigh and consider all oral and written testimony it receives on this matter, the record will remain open after May 25, 2007 and the Board’s final deliberations will be carried over to ARB’s regularly scheduled meeting on July 26, 2007 in Sacramento. At that time, the Board will resume its consideration of the proposed regulation for in-use off-road diesel vehicles and make its final decision.
   
Posted May 17, 2007

An updated version the Statewide Off-road Regulatory Cost/Benefit Model and Spreadsheet is available. The model is a Visual Basic module that runs within an Access database and utilizes Access queries. The methodology and calculations used within the model and spreadsheet are described in detail in the April 2007 Technical Support Document. 
   
Posted May 14, 2007

ARB staff have posted five fact sheets concerning the proposed in-use off-road diesel vehicle regulation. 
   
Posted May 4, 2007

ARB staff have posted a revised Medium/Large fleet average calculator to correct errors found in the calculator posted April 25, 2007. 
   
Posted April 25, 2007

 ARB staff have posted revised fleet average calculators that reflect the April 6, 2007 proposed regulation for in-use off-road diesel vehicles. 
   
Posted April 5, 2007

 ARB staff have posted the proposed regulation and staff report for consideration of the Board on May 24, 2007. 
Posted February 16, 2007
The presentation for the February 20, February 23, February 26, and March 1 workshops is now available.
   
Posted February 5, 2007
We have posted the following two documents in advance of the February 20 through March 1, 2007 workshops concerning ARB's proposed in-use off-road diesel vehicle rule:

(1) Revised regulatory language - To facilitate review of the changes since the last version, we have posted the revised version and a version showing a mark-up of the December 4, 2006 version.

(2) A summary of the changes made to the December 4, 2006 version.

We welcome your participation in the upcoming workshops.
We have posted a revised fleet average calculator correcting an error located within the PM targets for Medium and Large fleets. If you have a previous version of the fleet average calculator, and wish to correct this error yourself, on the Source Data page change the 2014 and 2015 PM targets for the 75-99 hp group from 0.42 to 0.24.
   
Posted January 30, 2007

The notice for the February 20, February 23, February 26, and March 1 workshops is now posted.
   
Posted January 25, 2007

ARB is postponing the scheduled board consideration date for the in-use off-road diesel vehicle rule regulation to May 2007 instead of April. The public workshops that were currently scheduled in Fresno, Sacramento, and Riverside on February 7, 8, and 13, respectively, have been postponed to allow additional time for public outreach and stakeholder input. The workshop set for February 20 in San Diego will remain unchanged. The new dates for the workshops will now be February 20 in San Diego, February 23 in Fresno, February 26 in Sacramento, and March 1 in Riverside. We will issue a revised workshop notice with more details including locations and times as soon as possible. We apologize for any inconvenience this postponement may have caused.
   
Posted January 18, 2007

We have added an additional location to the series of public workshops scheduled in February to discuss ARB's proposed In-use Off-road Diesel Vehicle Regulation. The newly scheduled workshop will be held in San Diego on February 20. We invite your participation.

We have also posted a new Fleet Average Calculator that is no longer password protected. This unlocked version contains more rows for vehicle entry, and allows the user to add rows for additional vehicles, reformat the spreadsheet, and change any equations as needed.

The sign-in sheets from the December workshops are now posted.
   
Posted January 8, 2007

We have scheduled workshops for February 7, 8, and 13 in Fresno, Sacramento, and Riverside. We invite your participation.

At the December workshops, we were asked to post sign-in sheets and a summary of the industry types that responded to our 2005 off-road equipment survey. The sign-in sheets from the December workshops are posted. Here is a pie chart showing the distribution of industry types that completed ARB's off-road equipment survey.

We have also corrected a few minor typographical errors in the fleet average calculators and have replaced the files that were posted on December 28. The fleet average calculators are available here.
   
Posted December 28, 2006

Revised Fleet Average Calculators (one for Medium / Large fleets and one for Small fleets) that reflect the December 4, 2006 proposed regulatory language and allow fleets to calculate their PM and NOx fleet averages and fleet average targets have now been posted. (See revised version posted on January 8, 2007.)
   
Posted December 15, 2006

The presentations for the December 18, 20, and 21 workshops are now available.
   
Posted December 4, 2006

An agenda for the December 18, 20, and 21 workshops, proposed regulatory language, and a fact sheet summarizing the proposed rule are now available. The workshop presentation will be posted prior to the December 18 workshop.
   
Posted November 16, 2006

We have scheduled workshops for December 18, 20, and 21 in Sacramento, Los Angeles, and Fresno. We invite your participation.
   
Posted November 15, 2006

The workshops tentatively scheduled for November 27, December 5, and December 6 have been postponed most likely until later in December. We apologize for any inconvenience this may have caused. A list serve email will be sent, and this website will be updated when the dates have been finalized. Sign up for list serve email.
   

In accordance with the 2006-2007 Budget Bill AB 1801, Chapter 47, Statutes of 2006, $25 million originally allocated for the replacement of older school buses is to be redirected as grants to public agencies to purchase low-polluting construction equipment. These funds must be encumbered by June 30, 2007.
   
Posted August 8, 2006

The sign in sheets from the July 21, 2006 workgroup for Sacramento and El Monte are available. The table of off-road engine PM emission factors and the Fleet Average Calculator are also available.
   
Posted July 20, 2006

The July 21, 2006 workgroup presentation and conference call-in number has been posted.
   
Posted July 13, 2006

The next Off-Road Equipment Measure Workgroup Meeting will be held July 21, 2006 in Sacramento and El Monte. We have posted a summary of inventory updates being made to support off-road equipment rule analyses. We have also posted a revised version of regulatory concepts.
   
Posted June 22, 2006

The next In-Use Off-Road Equipment Rule Workgroup Meeting will be held Friday, July 21, 2006 in Sacramento and El Monte. The purpose of the meeting will be to discuss revisions to the January regulatory concepts, remaining regulatory concept issues about which ARB staff would like to solicit input, updates to emissions inventory inputs and revised emissions inventory, and preliminary cost and economic impact analyses. If you plan to attend the workgroup meeting in person, please RSVP to Kim Heroy-Rogalski, P.E.
   
Posted March 27, 2006:

We have posted a table showing the combined ARB and U.S. EPA standards for off-road compression ignition engines. We have also posted a revised version of the in-use off-road equipment rule regulatory concepts that incorporates the combined ARB and U.S. EPA standards. The only difference between this new version of the regulatory concepts and that released January 20 is in the definition of Tier 0 and Tier 1.

We have also posted a revised discussion paper describing the equipment use, lifetime, and population assumptions in the OFFROAD model for airport ground support equipment (GSE). The revised discussion paper incorporates additional GSE survey data.
   
Posted March 13, 2006:

We have posted discussion papers describing the equipment use, lifetime, and population assumptions in the OFFROAD model and comparing them to comparable data from other sources. These discussion papers will be discussed further at the March 15, 2006 workgroup meetings.
   
Posted February 17, 2006:

The fifth Off-Road Equipment Measure Workgroup Meeting will be held March 15, 2006 in Sacramento and El Monte. We have posted a preliminary agenda for the meeting.  If you plan to attend the workgroup meeting in person, please RSVP to Zerguy Maazouddin.
   
Posted January 24, 2006:

The presentation for the January 24 and 31, 2006 workshops is now posted.
   
Posted January 20, 2006:

Revised regulatory concepts for the diesel particulate matter measure for in-use mobile off-road diesel-fueled engines will be presented at the January 24 and 31, 2006 public workshops. The concepts are posted here. We will post the workshop presentation prior to the workshops.
   
Posted December 15, 2005:

Fifth public workshop to discuss developing a diesel particulate matter measure for in-use off-road diesel-fueled engines will be held January 24, 2006 in Sacramento.
   

Sixth public workshop to discuss developing a diesel particulate matter measure for in-use off-road diesel-fueled engines will be held January 31, 2006 in El Monte.
   
Posted December 12, 2005:
Letter from the ARB to mine owners and operators in California notifying them of the ARB's Off-Road Equipment (In-Use) Control Measure and the Off-Road Equipment (In-Use) Survey.
   
Letter from the ARB to solid waste and recycing facilities in California notifying them of the ARB's Off-Road Equipment (In-Use) Control Measure and the Off-Road Equipment (In-Use) Survey.
   
Posted November 17, 2005:

Additional alternative regulatory proposals in response to the ARB's preliminary regulatory concepts for the off-road equipment control measure is available.
   
Posted November 9, 2005:
Current Statistics on Responses to Off-Road Equipment (In-Use) Survey (as of 11/9/2005).
   
Posted September 30, 2005:
Alternative regulatory proposals in response to the ARB's preliminary regulatory concepts for the off-road equipment control measure.
   
Posted July 2005:
Comments on July 2005 Regulatory Concepts
   
Posted July 28, 2005:
Letter from the ARB to 79,000 California licensed contractors notifying them of the ARB's Off-Road Equipment (In-Use) Control Measure and the Off-Road Equipment (In-Use) Survey.
   
Posted August 16, 2005:

The fourth Off-Road Equipment Measure Workgroup Meeting will be held August 30, 2005 in Sacramento and El Monte. We have posted a preliminary agenda for the meeting. If you plan to attend the workgroup meeting in person, please RSVP to Zerguy Maazouddin.
   
Posted July 28, 2005:

"Reliability of DPF-Systems: Experience with 6000 Applications of the Swiss Retrofit Fleet" report has been posted under Documents and Fact Sheets.
   
Posted July 11, 2005:

The California Air Pollution Control Officers Association (CAPCOA) is sponsoring a free technical conference for Diesel Emissions Reduction for Public Agency and Utility Fleets. The conference will be held on August 15-16, 2005 at the Sacramento Convention Center.
   
Posted July 11, 2005:

The "California Public Fleet Heavy-Duty Vehicle and Equipment Inventory" Final Report dated March 17, 2003, and its associated appendices are available at Documents and Fact Sheets. This report was prepared by TIAX LLC under contract to the Air Resources Board, to survey the heavy-duty vehicles and equipment owned and operated by public agencies in California.
   
Posted July 11, 2005:

Information for Sacramento Metropolitan Air Quality Management District's (SMAQMD) Heavy-Duty Vehicle Incentive Program is available at Related Links or by clicking here. The Off-Road Incentive Funding Calculater can be found there.
   
Posted July 12, 2005:

Third public workshop to discuss developing a diesel particulate matter measure for in-use off-road diesel-fueled engines will be held July 13, 2005 in El Monte. We have posted preliminary regulatory concepts. View the presentation.
   
Posted July 12, 2005:

Fourth public workshop to discuss developing a diesel particulate matter measure for in-use off-road diesel-fueled engines will be held July 19, 2005 in Sacramento. We have posted preliminary regulatory concepts. View the presentation.
   
Posted June 14, 2005:

Third public workshop to discuss developing a diesel particulate matter measure for in-use off-road diesel-fueled engines will be held July 13, 2005 in El Monte. We have posted the meeting notice. View the agenda.
   
Posted June 14, 2005:

Fourth public workshop to discuss developing a diesel particulate matter measure for in-use off-road diesel-fueled engines will be held July 19, 2005 in Sacramento. We have posted the meeting notice. V iew the agenda.
   
Posted May 12, 2005:

The third Off-Road Equipment Measure Workgroup Meeting will be held June 9, 2005 in Sacramento and El Monte. We have posted a preliminary agenda for the meeting. If you plan to attend the workgroup meeting in person, please RSVP to Zerguy Maazouddin.
   
Posted April 4, 2005:

Diesel Retrofit Demonstration Project Reports are available at Documents and Fact Sheets.
   
Posted March 23, 2005:

The Off-Road Equipment (In-Use) Survey for equipment used in California is available for online submittal.
   
Posted December 23, 2005:

The second Off-Road Equipment Measure workgroup meeting will be held February 16, 2005 in Sacramento and El Monte. We have posted a preliminary agenda for the meeting. If you plan to attend the workgroup meeting in person, please RSVP to Zerguy Maazouddin.
   
Posted November 19, 2004:

First workgroup to discuss developing a diesel particulate matter control measure for in-use off-road diesel-fueled engines will be held December 13, 2004 in Sacramento. We have posted a preliminary agenda for the meeting.
   
Posted October 18, 2004:

Second public workshop to discuss developing a diesel particulate matter measure for in-use off-road diesel-fueled engines will be held November 17, 2004 in El Monte. We have posted the meeting notice. View the presentation.
   
Posted October 18, 2004:

First public workshop to discuss developing a diesel particulate matter measure for in-use off-road diesel-fueled engines will be held November 16, 2004 in Sacramento. We have posted the meeting notice. View the presentation.

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