The Moyer Year 16 funding cycle has closed.
Please check back in the Fall of 2015 for information on the Moyer Year 17 funding cycle process and opening date.

Funding for Diesel Engine Operators

The District’s Innovative Technologies Group promotes the application of clean fuels and energy projects.We continue to seek proposals from private and public entities in the county for projects to reduce air pollution from heavy-duty diesel engines, according to the terms and conditions of the California Air Resources Board’s (ARB) Carl Moyer Air Quality Memorial Standards Attainment Program (Carl Moyer Program). Typical Carl Moyer Program projects include heavy-duty engine repowers, replacements, and retrofits for both diesel and alternative- fueled equipment. The District’s grant funding comes from the ARB’s Carl Moyer Program and the DMV Motor Vehicle Registration Fee Surcharge Program.

Do you qualify for a grant and have all the information needed to submit a complete application? Find out here.

For more information consult the 2011 Carl Moyer Program Guidelines, visit the ARB Verified Diesel Retrofit Devices website, or contact Jim Fredrickson at (805) 961-8892. Please consult the Carl Moyer Program Advisories for modifications to the guidelines and current program policies.

The following equipment categories are eligible for grant funding:

Off-Road heavy-duty equipment replacement

Off-Road ReplacementDownload Offroad Equipment Replacement application form.

View Frequently Asked Questions (PDF)

Note: $100,000 maximum grant amount per project.

Off-Road heavy-duty engine re-power

Download Offroad Engine Repower application form.

Off-Road construction, mining, farm equipment, etc.

Note: $100,000 maximum grant amount per project.

 Marine engines

Download Marine Engine application form.

Repower of diesel-powered marine main or auxiliary engines.

Note: $100,000 maximum grant amount per project.

 Agricultural stationary engines

Download Agricultural Engine application form.

Repower of “stationary” agricultural water pump diesel engines.
Regulations for farm engines, see Registration of Agricultural (AG) Diesel Engines.

Note: $100,000 maximum grant amount per project.


  • On-road heavy-duty engines, forklifts, airport ground support equipment, locomotives, particulate matter (PM) projects, etc.

For information about funding and regulatory resources for diesel truck operators see the California Air Resources Board Truck Stop page.

Please contact District staff directly for more details on these projects. Also, consult the Carl Moyer Guidelines and approved Program Advisories for project selection criteria and funding eligibility.

Questions? Call the APCD at (805) 961-8800, or contact Jim Fredrickson at (805) 961-8892.