New Hampshire Clean Diesel Grant Program
DERA grant program aims to reduce emissions from diesel engines.
The New Hampshire Clean Diesel Grant Program is competitive reimbursement program created with the purpose of reducing diesel emissions in the state. This program is funded by the United States Environmental Protection Agency (EPA) through the Diesel Emissions Reduction Act (DERA) and managed by the Technical Services Bureau within the Air Resources Division of NHDES.
Eligible projects include, but are not limited to:
- Vehicle and equipment replacement (e.g. plow truck, wheeled loader, or school bus replacement).
- Engine replacement (e.g. marine or highway engine replacement).
- Idle reduction technologies (e.g. electrified parking space or marine shore power technologies).
- Aerodynamic technologies (e.g. low rolling resistance tires).
Please see the EPA DERA State Grants Program Guide for the full list of eligible projects and activities.
EPA Guidelines for State Agencies
NHDES is guided by EPA's DERA State Grants Program. Based on the federal program guidance, NHDES develops a workplan identifying specific project eligibility within New Hampshire. See the 2023 NHDES Work Plan to learn more.
What portion of the project cost is reimbursed?
Grant funding reimburses a portion of eligible project costs; the portion depends on the project type. For example, a project replacing a diesel vehicle with an electric vehicle can be reimbursed for up to 45% of the project cost (including the EV charging infrastructure); a project replacing an old diesel vehicle with a newer, cleaner diesel vehicle can be reimbursed for up to 25% of the project cost.
Funding Opportunity
The 2024-25 New Hampshire Clean Diesel Program Request for Proposals is now closed.
Subscribe to the DERA/Clean Diesel E-News for future funding opportunity updates.
NHDES is seeking applicant proposals for eligible diesel emissions reduction projects, utilizing approximately $500,000 of EPA DERA federal funds. The first round of funding closed on January 24, 2025, at 4 p.m. Eastern Time.
If funding remains, proposals submitted after the first-round proposal deadline, but before May 16, 2025, at 4 p.m. Eastern Time will be scored with the second-round proposals.
The request for proposals contains the following key information:
- Grant timelines.
- Eligibility information.
- Funding limits.
- Scoring criteria.
Steps to apply:
- Read the request for proposals (RFP) for guidance on project eligibility and requirements.
- Complete the application:
- Email the completed application and required materials to ms-grants@des.nh.gov.
If you have any issues submitting the application electronically, please send an email to ms-grants@des.nh.gov or call (603) 271-8330 for assistance.
Questions?
- See the Frequently Asked Questions (FAQ) document, which contains answers to many common questions.
- Review EPA's DERA State Grants Program Guide, which contains additional information about the program.
- Send an email to ms-grants@des.nh.gov or call (603) 271-8330 with any further questions.
Past Grant Recipients Past Scoring Results Past Scoring Criteria
EPA also offers competitive grants separate from New Hampshire’s Clean Diesel Grant Program. For more information about these grants, please go to EPA's DERA webpage.