New Hampshire Clean Diesel Program

The New Hampshire Department of Environmental Services is soliciting proposals through the New Hampshire Clean Diesel Program, a reimbursement-based grant initiative funded by approximately $1,000,000 in federal EPA Diesel Emissions Reduction Act Program funds. Eligible applicants include state, county, and local government agencies; municipalities; public schools and school districts; public colleges and universities; public transit agencies; and non-profit or private entities in good standing with the New Hampshire Secretary of State. The program funds projects that reduce diesel emissions through vehicle, engine, or equipment replacements; EPA-certified remanufacture systems; EPA-verified idle reduction technologies; EPA-verified aerodynamic technologies; and EPA-verified low rolling resistance tires, with replacement units powered by battery electric, grid electric, hydrogen fuel cell, compressed natural gas, propane, liquefied petroleum gas, hybrid diesel-electric, gasoline, or EPA/CARB-certified diesel engines. Project completion requires procurement and registration of replacement units, scrappage and permanent disabling of original units, installation of charging infrastructure if applicable, and submission of invoice and proof-of-payment documentation. Proposals are accepted on a rolling monthly basis with submissions due on the 20th of each month at midnight, with applicants notified of selection status within five business days, and the program remains open until all available funding is obligated with project completion deadlines set at the New Hampshire Department of Environmental Services' discretion. Existing diesel-powered units must meet specified engine tier requirements and minimum usage criteria, and all costs incurred prior to grant agreement approval by the New Hampshire Governor and Executive Council are ineligible for reimbursement without prior written approval.

The program imposes no specified set-aside designations, though it prioritizes projects providing substantial public and economic benefits to the state. This is a partial reimbursement program requiring applicants to cover full project costs upfront before seeking reimbursement for eligible expenses, with all projects requiring non-federal matching funds. Grant funding and cost-share percentages vary by project type, ranging from 25% to 45% maximum grant funding depending on the unit type and engine tier, with no specified minimum or maximum award size per individual project. No incumbent vendors or current contractors are identified in the solicitation materials. Proposal preparation costs are the sole responsibility of applicants, and the program operates on a rolling basis administered by the New Hampshire Department of Environmental Services with individual grant agreements specifying project-specific completion deadlines and requirements.