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New Hampshire Department of Environmental Services·New Hampshire

New Hampshire Clean Diesel Program

Closes 9/30/2026$50k – $500kGrants Notice
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Description

The New Hampshire Clean Diesel (NHCD) Grant Program seeks applicants to submit proposals for projects that replace or retrofit diesel‑powered vehicles, engines, or equipment, or install idle‑reduction, aerodynamic, or low‑rolling‑resistance‑tire technologies. Funding is a partial reimbursement (typically 40‑60 % of project costs) from a pool of roughly $1 M, with applicants required to front all costs and provide the required cost‑share. Applications are accepted on a rolling basis, due by the 20th of each month, with scoring and notification within five business days. Successful projects must meet strict eligibility criteria, including diesel‑powered existing units, ownership/life thresholds, usage requirements, and a scrappage plan within 90 days of the new unit’s commissioning. The program is administered by the New Hampshire Department of Environmental Services and is open to state, local, public‑sector entities as well as qualifying non‑profit or private firms that can demonstrate substantial public or economic benefits. • Eligible projects: diesel‑to‑electric, diesel‑to‑CNG/propane, low‑NOx diesel, idle‑reduction systems, aerodynamic kits, low‑rolling‑resistance tires. • Funding limits: maximum grant percentages range from 25 % (idle‑reduction) to 60 % (zero‑tailpipe replacements); mandatory cost‑share varies accordingly. • Application mechanics: complete the appropriate Appendix form (A1 or A2), email to ms‑[email protected], and attach supporting documentation; each unit requires a separate proposal. • Reporting: quarterly status reports for two years, then annual reports; scrappage documentation required within 90 days.

Attached files

Contact

Jack Wade(Mobile Sources Grants Program Coordinator)

[email protected]

(603) 271-8330

Key dates

Opened
1/21/2026
Closes
9/30/2026

Last updated

Details

Type
Grants Notice
Industry
Environmental Services
NAICS
541620
Solicitation №
RFP DES 2026-10

Budget estimate

$50,000 – $500,000

The grant covers 40‑60 % of eligible project costs, with total program funding around $1 M. Assuming a typical project size of $200‑$800 k, a contractor could earn the reimbursable portion (i.e., the grant portion) plus any fees for consulting, design, or installation. A realistic earnings range for a single awarded project might be $50 k to $500 k, depending on project scope, technology chosen, and cost‑share contributions.

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