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SLO County Clean Air Incentives

SLO County APCD has been operating our Grant Program since 1997. In that time, we have infused over $21.1 million dollars into our local economy to help businesses modernize their equipment and comply early with State emission regulation. These dollars have funded the reduction of over 2,882 tons of smog forming pollutants.


The California Air Resources Board has released the 2017-2018 Grant Guidelines for California Assembly Bill 617 - Community Air Grants Program. AB 617 seeks to ensure that all Californians benefit equitably from our State's air quality and climate efforts, especially those who live in the areas of California most severely impacted by air pollution. 

The grant funding is provided by Assembly Bill (AB) 617 and AB 134 with under-served areas in our county being the focus. Eligible projects for this funding include but are not limited to the replacement of diesel equipment, including heavy-duty on-road vehicles (transit, waste haulers, and heavy-duty trucks), agricultural tractors and irrigation engines, and construction equipment.

For more information, please click here

Carl Moyer Program News

On January 24, 2018 the APCD Board approved additional funding for the Carl Moyer Incentive Program using a total of $728,327 from the State Carl Moyer Program and local AB923 funds. Grant projects funded with these monies provide the APCD with the opportunity to reduce emissions and help local companies significantly reduce their cost of upgrading to new, clean emitting equipment prior to regulation requirements. The Carl Moyer Program will fund the following:

  1. Off-Road Equipment Replacement Program (ERP): Replacements of construction equipment and tractors;
  2. On-Road Fleet Modernization Program (Fleet Mod): Replacements of on-road heavy-duty trucks; 
  3. Off-Road Repowers, Retrofits and Electrifications of off-road equipment such as irrigation engines, tractors, and mobile construction equipment; and,
  4. Marine Vessel Repowers: Replacement of older, higher-polluting marine diesel engines with new, cleaner engines in fishing boats and other commercial harbor craft. 

The APCD continues to partner with a local network of truck and equipment dealers and scrap yards to help local businesses secure incentive funding for their emission reduction projects. Some of the Carl Moyer program specifics include:

  • Funds are awarded on a first-come, first-served basis based on when APCD deems an application complete;
  • Provides up to 65% of eligible costs for ERP, marine, repower or electrification projects;
  • Provides up to $60,000 for replacement diesel on-road trucks – more for optional low-NOx (CNG) or zero-emission vehicles;
  • Provides up to $150,000 per applicant, per calendar year;
  • Replacement trucks and equipment for Fleet Mod or ERP must be purchased from an APCD approved dealership;
  • No orders, purchases or any work associated with a project can occur until the APCD grant agreement is signed by all parties;
  • All sizes of on-road fleets will now be eligible for funding, with priority given to small fleets.  Applications will be taken from all sizes of fleets when the program opens, and projects will be placed in the funding queue according to the date they are deemed complete (per APCD policy); however:
  • For the first 90 days from the program start date, on-road funds will be awarded only to fleets of 1 – 3 vehicles. 
  • After 90 days and until 180 days from the program start date, on-road funds will be awarded only to fleets of 1 – 10 vehicles. 
  • After 180 days, funds will be released to fund all project categories, including on-road fleets of any size.
  • In on-road fleets with more than ten vehicles, the replacement vehicle must be an optional low-NOx or zero-emission technology, unless the baseline vehicle falls within certain operating vocations and locations defined in the Statewide Truck and Bus Regulation (i.e., school buses, log trucks, low mileage work trucks, agricultural vehicles, and NOx Exempt Area vehicles); and,
  • Applications are available on the APCD website or call 805-781-5912.

We are proud to partner with local businesses and individuals to help them replace their dirty on-road, off-road and agricultural vehicles & equipment with new, cleaner and equipment through our Grant Program. Click here to see just a few of the individuals we have worked with in securing grant funding to clean up their fleets! 


Si usted desea información en español acerca de las regulaciones estatales y saber más acerca de cómo pueden afectarle a usted o su negocio, oprima aquí. Si usted tiene preguntas en general acerca del programa de subsidios de la Agencia para el Control de la Calidad del Aire en el condado de San Luis Obispo (SLO County APCD) envié un correo electrónico a


Grant Program Qualifications Status
Community Clean Air Incentives -  Los Osos If you reside in Los Osos, get $ for trying out alternative transportation.  OPEN
Carl Moyer Incentive Program Helps fund replacement of on-road trucks and the replacement, repower or retrofit of off-road agricultural or construction equipment, marine vessels and harbor craft, and agricultural irrigation engines.


Wood Burning Change-Out Program Replace your old wood burning fireplace or stove with natural gas. Applicants must reside in Nipomo or Paso Robles zip codes.  OPEN 
Old Car Buy Back Sell your 1994 or older car, light truck or van for $1000. Click link or call 800-717-7624 for more information. OPEN
Eastern County Emission Reduction Program Equipment must be operated a portion of the time in the eastern area of SLO County, with highest priority given to those operating in the Carrizo Plains. OPEN
School Bus Program Funding for public school bus replacements and retrofits. OPEN


Ongoing SLO County Clean Air Incentives Programs

Other Non APCD Grants

The following links are provided as a reference of other potential funding sources. The APCD has no involvement in these grants. If you are interested in any of the grant programs listed below please contact the administering agency.

California Air Resource Board

ARB Grants for Alternative Fuel Vehicles and Equipment & Research:

ARB Loan Assistance for On-Road Trucks Owners:

California Energy Commission Alternative and Renewable Fuel & Vehicle Technology Program:

1% Loan to Local Governments for Energy Efficiency and Energy Generation Projects:

Energy Efficiency Programs for Local Government:

Energy Efficiency Programs:

California Energy Commission:


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