The District’s Clean Air Grant (CAG) Program provides monetary grants to private companies and public agencies to clean up their heavy-duty engines beyond that which is required by law or regulation through repowering, replacing, or retrofitting their engines, vehicles, or equipment.
Donor Name: Placer County Air Pollution Control District
State: California
County: Placer County (CA)
Type of Grant: Grant
Deadline: 05/31/2026
Size of the Grant: Not Available
Grant Duration: Grant Duration Not Mentioned
Details:
Grants may also fund infrastructure projects to support California’s transformation toward zero and near-zero emission technologies. A portion of Clean Air Grant Program funds is reserved for projects located within or benefiting low-income communities.
Categories
- Emergency Stationary Generators
- Emergency Stationary Generators Apply for a Clean Air Grant to replace an old uncontrolled, Tier 1, or Tier 2 diesel emergency stationary generator with a new diesel, alternative fuel, or zero-emission emergency generator.
- Infrastructure
- Apply for a Clean Air Grant to install an electric charging station, a hydrogen fueling station, or infrastructure to support agricultural pump electrification.
- Heavy-Duty Off-Road Equipment
- Apply for a Clean Air Grant to repower, retrofit, or replace your old heavy-duty diesel off-road equipment.
- Heavy-Duty On-Road Vehicles and School Buses
- Apply for a Clean Air Grant to replace an older heavy-duty on-road vehicle or school bus with a zero-emission vehicle. Diesel and alternative fuel replacements are eligible for some vehicle types.
- Zero-Emission Utility Terrain Vehicles (UTVs)
- Apply for a Clean Air Grant to replace an old combustion UTV with a new zero-emission UTV.
Types of Projects that Qualify for Clean Air Grants
Eligible projects include replacing, retrofitting, or repowering heavy-duty on-road and off-road vehicles or equipment, as well as installing infrastructure that supports electric vehicle charging or hydrogen fueling. Examples of potential projects include:
- Off-Road Equipment
- Construction and Farm Equipment
- Forklifts
- Locomotives
- Stationary Agricultural Equipment
- Other Agricultural Sources
- On-Road Vehicles
- Emergency Vehicles
- Public Agency/Utility Vehicles
- School Buses
- Solid Waste Collection Vehicles
- Transit Fleet Vehicles.
- Infrastructure
- Projects must provide fuel or power to covered sources, which include on-road (i.e., passenger and commercial light-duty, medium-duty, and heavy-duty vehicles), off-road, locomotive, agricultural, lawn & garden, and marine vessel infrastructure.
- Battery Charging Stations
- Hydrogen Fueling Stations
- Stationary Agricultural Pump Electrification.
Eligibility Criteria
- For Emergency Stationary Generators
- Current generators must meet the PCAPCD’s definition of an “emergency stand-by engine,” as defined and meet the criteria for an Emergency Stand-By Engine Exemption, as defined in the District’s Rule 242 – Stationary Internal Combustion Engines
- For Infrastructure
- Eligible project types include agricultural pump electrification and battery charging or hydrogen fueling stations. Single-family residential projects are not eligible for funds.
- The project must be installed and located in Placer County.
- Infrastructure projects will be subject to a competitive review process conducted by District staff.
- Incomplete and/or late applications will be disqualified. Projects that do not meet the eligibility requirements listed in the application or within the Carl Moyer Guidelines will be ineligible for review.
- Project funds may be oversubscribed, which means not all eligible projects will receive funding. Should more qualifying projects be received than can be funded, it will be at the discretion of the Air Pollution Control Officer to make final award determinations.
- For Heavy-Duty Off-Road Equipment
- Projects are eligible if the baseline and replacement diesel or spark-ignition engines have a horsepower rating of 25 or greater.
- Agricultural tractor projects are also eligible if the baseline diesel or spark-ignition engine is 20 horsepower or greater and the replacement is zero-emission.
- In most cases, the replacement engine may not exceed a 35% horsepower increase over the existing engine (for example, 100 hp may be replaced with up to 135 hp).
- Replacement engines must be certified to meet or exceed the current applicable standard or Tier (generally Tier 4 Final or cleaner).
- The applicant must have owned the equipment in California for the past two years.
- The existing equipment must be operational.
- The replacement equipment must perform the same function and provide equivalent work as the baseline equipment.
- For Heavy-Duty On-Road Vehicles
- For heavy-duty trucks and buses subject to the Truck and Bus Regulation:
- On-Road Vehicle projects are only eligible for optional low NOx or zero-emission technologies, provided they meet the compliance requirements within the regulation (except for school buses and emergency equipment)
- For Zero-Emission UTVs
- Existing UTVs must meet the following conditions to be eligible:
- The existing combustion UTV must be in operational condition. The UTV must be able to start, move, and have all operational parts intact.
- For agricultural projects, the existing tractor or UTV must have an engine model year of at least five years prior to the year of the funding application.
For more information, visit Placer County Air Pollution Control District.
































