Specifications include, but are not limited to: Diesel vehicles, engines, and equipment which fall into the following categories are eligible for upgrade projects through this program: a. Buses (Transit, Class 5-8 Shuttle, and School Buses of Type A, B, C, and D); b. Trucks (Medium-duty or heavy-duty—Class 5 through Class 8, including Drayage); c. Marine Engines (e.g., ferries, commercial fishing boats); d. Locomotives; and e. Non-road engines, equipment, or vehicles used in: i. Construction (e.g., backhoes, loaders, forklifts), ii. Handling of cargo (including at a port or airport), iii. Agriculture, iv. Mining, or v. Energy production (including stationary generators and pumps).; The following eligibility criteria apply to all projects except for off-board idle reduction projects: 1. Each existing unit must be diesel.; 2. Each existing unit must operate the majority of the time in New Hampshire.; 3. Each existing unit must be fully operational and in current, regular service.; 4. Each existing unit must have a minimum of three years of anticipated operational life remaining. Therefore, units that are scheduled for retirement prior to October 1, 2025 are not eligible under this RFP. Applicants must include the anticipated date of retirement of the unit on the Project Proposal Form included in Appendix A1 of this RFP.; 5. The applicant must currently own and operate the existing unit and have owned and operated it during the two years prior to the anticipated project start date of October 1, 2022.; 6. Usage Requirements: the existing unit must meet or exceed the corresponding usage requirement listed below. Note that for replacement projects, the usage of multiple units may be combined if they all are to be scrapped and replaced with a single unit.; a. Agricultural pumps: 250 hours per year during the two years prior to upgrade.; b. Locomotive and Marine engines: 1,000 hours per year during the two years prior to upgrade.; c. All Other Non-Road Engines: 500 hours per year during the two years prior to upgrade.; d. School Buses: 7,000 miles per year during the two years prior to upgrade OR during calendar year (Jan-Dec) 2019.; e. All Other Highway Engines: 7,000 miles per year during the two years prior to upgrade.