Carl Moyer Memorial Air Quality Standards Attainment Program

This page last reviewed March 30, 2015

slideshow of source catagories for the Carl Moyer Program

The Carl Moyer Memorial Air Quality Standards Attainment Program (Carl Moyer Program) provides grant funding for cleaner-than-required engines and equipment. Grants are administered by local air districts. ARB works collaboratively with the districts and other stakeholders to set Guidelines and ensure the Program reduces pollution and provides cleaner air for Californians. The Carl Moyer Program achieves reductions in emissions of key pollutants which are necessary for California to meet its clean air commitments under regulatory requirements. Eligible projects include cleaner on-road, off-road, marine, locomotive, lawn & garden, light duty passenger vehicles being scrapped and agricultural equipment.

For more information regarding the Carl Moyer Program, please email us or contact ARB's Diesel Hotline.

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Moyer Program Helps North Coast Businesses
Clean the Air (Video, 5 min.)

What's New?

Posted March 30, 2015
Posted January 28, 2015
  • Mail-Out MSC#15-02 (20KB) Release of Revisions to the TIMBER Supplemental Documents of the Carl Moyer Memorial Air Quality Standards Attainment (Carl Moyer) Program

Posted December 15, 2014

AB 8 Program Evaluation. At the December 18, 2014 Board hearing, staff provided an update and report to the Board on the joint Air Resource Board/California Air Pollution Control Officers Association Assembly Bill 8 Carl Moyer Program Evaluation. The report provides a summary of the progress of the evaluation process and potential improvements to the program identified during the process.

Posted December 5, 2014

         Solicitation for Applications to receive funding from the Carl Moyer Program - Year 17 Funds

Posted September 25, 2014
  • Mail-Out MSC#14-15 (19KB) October 9, 2014 Incentive Programs Advisory Group Meeting.
  • Mail-Out MSC#14-14 (23KB) Board Approved Revisions to the Carl Moyer Program On-road Chapters 4 and 5, and VIP Guidelines.

Posted July 23, 2014   
  • Meeting Summary (629KB) June 11, 2014 Incentive Programs Advisory Group Meeting.

Posted July 17, 2014

Posted July 8, 2014

Release of Proposed Revisions to the On-Road Chapters of the Carl Moyer Memorial Air Quality Standards Attainment (Carl Moyer) Program Guidelines

Notice of Public Meeting For July 24, 2014 to Consider Proposed Revisions to the Carl Moyer Memorial Air Quality Standards Attainment Program Guidelines for On-Road Heavy-Duty Trucks is currently posted.

Comments on the proposed changes can be submitted through August 22, 2014, 45 days from the date of the release of the proposed language on July 8, 2014.  To be considered before the hearing, comments must be submitted according to the instructions on ARB’s public comments webpage at to be considered after the hearing can be submitted to Danielle Robinson at (626) 575-6775 or or Tess Sicat at (626) 459-4435 or

Posted May 29, 2014
Posted May 29, 2014
Posted April 29, 2014
  • Mail-Out MSC#14-06 (22KB) Public Meeting to Consider Changes to the Carl Moyer Program Guidelines.  Attachment 1 (80KB) and Attachment 2 (492KB).
  • Mail-Out MSC# 14-05 (19KB) Public Workshop to Discuss Potential Revisions to the Carl Moyer Program Guidelines to Provide Additional Funding Opportunities, in Particular to Fleets Subject to the Truck and Bus Regulation

Posted April 1, 2014
  • Carl Moyer Program: Review and Update of the Cost-Effectiveness Limit and Capital Recovery Factors for 2014 (16KB) Attachment G (78KB)

Posted January 15, 2014

Posted December 6, 2013

Posted November 15, 2013

  • The TIMBER Webpage is now live, at There you will find minimum participation and project requirements as well as links to the TIMBER Fact Sheet, the list of participating dealerships, the TIMBER Guidelines, and a list of all participating air districts.

Posted October 30, 2013

Posted October 21, 2013

  • Approved Guidelines For The Carl Moyer Truck Improvement/Modernization Benefitting Emission Reductions Program For On-Road Heavy-Duty Log Truck Replacements (82 KB) Attachment (115 KB)
Posted August 28, 2013
  • Mail-Out #MSC 13-20 (PDF 106KB)  September 18, 2013 Public Meeting To Consider Changes To The Carl Moyer Program Guidelines and The Voucher Incentive Program Guidelines For On-Road Heavy-Duty Vehicles. Attachment 1 (5 KB) Attachment 2 (5 KB) Attachment 3 (88 KB) Attachment 4 (11 KB) Attachment 5 (70 KB) Attachment 6 (74 KB) Attachment 7 (191 KB).


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