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Find similar grantsClean Diesel Grants is sponsored by Washington State Department of Ecology. Provides funding to obtain and install clean diesel technology on vehicles and equipment.
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Clean diesel grants - Washington State Department of Ecology > Payments, contracts & grants Clean diesel grants will reduce greenhouse gases and protect people from toxic diesel emissions. This grant's primary purpose is to electrify school buses. It also helps reduce idling and replace other diesel equipment engines.
Transportation is the largest source of climate pollution in Washington, accounting for nearly half of total greenhouse gas emissions. Diesel exhaust is responsible for two-thirds of Washington’s airborne cancer risk. The Governor and Legislature are creating policies and initiatives to reduce impacts from climate change and improve public health by moving from fossil fuels to a zero emission transportation system.
Apply for or manage a grant or loan Get guidance for managing a grant or loan See a map of all Ecology grant-funded projects Amount of funding available: Varies – see individual grant guidelines for eligibility Grant award limit: Varies – see individual grant guidelines for eligibility Amount of matching funds required: Varies – see individual grant guidelines for eligibility Applications are currently being accepted.
Zero emission school bus and fleet transition grant program Grant guidelines (updated April 2026) February 12, 2026 – April 23, 2026 June 4, 2026 Air Quality Clean School Bus Grant Program 2023–2025 (round 2) Application frequently asked questions (FAQ) Air Quality Clean Diesel Grant Program 2024–2025 (diesel marine engines and training pilot programs) Air Quality Clean Diesel Grant Program 2023–2025 (fuel cell transit buses and zero emission yard trucks) Air Quality Clean School Bus Grant Program 2023–2025 (round 1) Funding is available for the following entities: Zero emission school bus and fleet transition grant program Zero emission school bus projects School bus owners that transport students to K-12 schools overseen by the Washington Office of Superintendent of Public Instruction (OSPI) for the 2025–2026 school year Vocational training projects Non-profit 501(c)(3) organizations Public utility districts/co-ops School districts, including skills centers Zero emission school bus and fleet transition grant program Zero emission school bus projects Vehicle replacement – Scrap and replace existing eligible school buses with new zero emission school buses, including fleet transition and infrastructure equipment and activities associated with each replacement Additional fleet transition and infrastructure – Purchase equipment and conduct activities needed to support zero emission school bus maintenance and operations, including charging infrastructure Vocational training projects Train school bus mechanics, bus drivers, and office staff about the maintenance and operation of zero emission fleets Prepare 8th-12th grade students for jobs created by transitioning diesel/fossil-fueled fleets to zero emission fleet More information about this funding program Focus on: Electric School Bus Grants EPA: Diesel Emissions Reduction Act (DERA) Funding EPA: Reducing Diesel Emissions from Construction and Agriculture Reducing diesel emissions Volkswagen federal settlement and state penalty Volkswagen enforcement action grants Diesel Program Specialist kelly.
ocallahan@ecy. wa. gov Stay informed.
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Based on current listing details, eligibility includes: Unspecified in search results, but implied for government agencies, tribes, community-based organizations, and non-profits working in Washington State. Applicants should confirm final requirements in the official notice before submission.
Current published award information indicates Unspecified Always verify allowable costs, matching requirements, and funding caps directly in the sponsor documentation.
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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.