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Application window: July 28, 2025 (open) through September 5, 2025 (closed). The 2025 program is now closed.
Clean Air Grants for Marine Diesel Engine Repower Program (2025) is sponsored by Santa Barbara County Air Pollution Control District (funded by California Air Resources Board's Carl Moyer Program). This program funds projects to upgrade or replace diesel-powered marine engines to reduce air pollution. Priority is given to zero-emission technology projects and those in disadvantaged communities.
This is highly relevant for small marine engines.
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Clean Air Grants for Marine Engines – Santa Barbara County Air Pollution Control District Clean Air Grants for Marine Engines The 2025 Clean Air Grants Program closed on September 5, 2025.
2025 Clean Air Grants for Marine Diesel Engine Repower Program Si requiere asistencia para someter una solicitud en español, comuníquese con el Distrito al [email protected] Upgrade or replace diesel-powered marine engines to help reduce air pollution. Successful projects will be eligible to receive a grant within a range from $10,000 to $250,000.
Actual grant amounts vary based on several factors, including but not limited to: usage, cost-effectiveness, emission reductions, eligible project costs, and fund availability. Priority will be given to zero-emission technology projects, along with projects located within disadvantaged communities, as defined by this map: SB 535 Disadvantaged Communities. Emission reductions from the project must be surplus to any rule or regulation.
The District has discretion on how grant funds are prioritized and distributed. Recreational and non-diesel vessels are NOT eligible for grant funds. Applications are limited to one (1) grant project per Company, LLC, Taxpayer ID, etc. with final determination at the District’s discretion.
Vessels must be based in Santa Barbara County. Vessels must operate at least 50% of the time in coastal waters of Santa Barbara, San Luis Obispo, and/or Ventura counties with the remainder in California coastal waters. Vessels are required to maintain a functioning hour meter as required by the CARB Commercial Harbor Craft Regulation .
Repower project must be completed prior to the CARB Commercial Harbor Craft Regulation in-use compliance deadline. Applicants must provide records documenting equipment ownership and usage from the last 24 months. Existing engine(s) proposed for repower must be demonstrated to the District to be operational and in-service at the time of application.
Determine your vessel’s eligibility for this program . To be eligible for funds, projects must meet the criteria located in CARB’s most recent Carl Moyer Guidelines, Chapter 7 , and Community Air Projection Project Guidelines . Gather the required information about your marine vessel, engine(s), and replacement engine(s).
Apply for grant funds in person, by mail, or email. Please see application on the right of this page for more information.
2025 Application – Click Here Program opened Monday, July 28, 2025 Program closed Friday, September 5, 2025 Commercial Harbor Craft Report Contact us via email: [email protected] This program is part of our 2025 Clean Air Grants Program funded by California Air Resources Board’s Carl Moyer Program, Community Air Protection Program, Funding Agricultural Replacement Measures for Emission Reductions (FARMER) Program, and DMV surcharge revenue.
For more information, see Clean Air Grants.
Scoring criteria used to review proposals for this grant.
Based on current listing details, eligibility includes: Vessels must be based in Santa Barbara County and operate at least 50% of the time in coastal waters of Santa Barbara, San Luis Obispo, and/or Ventura counties. Recreational and non-diesel vessels are NOT eligible. Applicants should confirm final requirements in the official notice before submission.
Current published award information indicates $10,000 to $250,000 Always verify allowable costs, matching requirements, and funding caps directly in the sponsor documentation.
The current target date is rolling deadlines or periodic funding windows. Build your timeline backwards from this date to cover registrations, approvals, attachments, and final submission checks.
Federal grant success rates typically range from 10-30%, varying by agency and program. Build a strong proposal with clear objectives, measurable outcomes, and a well-justified budget to improve your chances.
Requirements vary by sponsor, but typically include a project narrative, budget justification, organizational capability statement, and key personnel CVs. Check the official notice for the complete list of required attachments.
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Review timelines vary by funder. Federal agencies typically take 3-6 months from submission to award notification. Foundation grants may be faster, often 1-3 months. Check the program's timeline in the official solicitation for specific dates.
Many federal programs offer multi-year funding or allow competitive renewals. Check the official solicitation for continuation and renewal policies. Non-competing continuation applications are common for multi-year awards.
EPA is seeking insightful, expert, and cost-effective applications from eligible applicants to provide the Chesapeake Bay Program’s non-federal partners with technical analysis and programmatic evaluation support related to water quality modeling and monitoring and spatial systems to manage, analyze, and map environmental data. The project assists the partners in meeting their restoration and protection goals and in increasing the transfer of scientific understanding to the Chesapeake Bay Program modeling, monitoring, and Geographic Information Systems (GIS) activities. The recipient will support modeling, monitoring, and GIS programs needed to explain and communicate the health of and changes in the Chesapeake Bay ecosystem. Funding Opportunity Number: EPA-R3-CBP-23-18. Assistance Listing: 66.466. Funding Instrument: CA. Category: ENV. Award Amount: Up to $5.3M per award.
Clean Ports Program is sponsored by Environmental Protection Agency (EPA). The Clean Ports Program provides funding for zero-emission port equipment and infrastructure, as well as climate and air quality planning at U.S. ports. It aims to reduce diesel pollution and build a foundation for the port sector to transition to fully zero-emissions operations.