N.Y. Comp. Codes R. & Regs. tit. 6, § 248-1.1
(b) For the purposes of this Part, the following definitions also apply:
(8) Classification level for diesel emission control strategies means those PM reduction classification levels and corresponding PM percent reductions as noted below in Table 1 of this paragraph.
Table 1. Verification Classifications for Diesel Emission Control Strategies
| Pollutant Reduction | Classification | |
| PM | < 25 percent | Not verified |
| > or =25 percent | Level 1 | |
| > or =50 percent | Level 2 | |
| > or =85 percent | Level 3 | |
| or < or =0.01g/bhp-hr | ||
| NOx | < 15 percent | Not verified |
| > or =15 percent | Verified in 5 percent increments |
(14) Heavy duty vehicle or HDV means any on and off-road vehicle powered by a diesel engine and having a gross vehicle weight of greater than 8,500 pounds, except: vehicles used exclusively as snowplows under contract with a regulated entity; authorized emergency vehicles; trucks owned by a person engaged in production by means of:
(iii) dairy farming where such agricultural truck is only used for the transportation of such person's own agricultural or dairy commodities or supplies or for personal passenger use, or in conjunction with lumbering operations connected with but only incidental to the operation of a farm; road rollers, tractor cranes, truck cranes, power shovels, road building machines, snow plows, road sweepers, sand spreaders, well drillers, well servicing rigs, feed processing machines, mobile car crushers (whether self-propelled or a combination used exclusively as one unit), earth movers, which shall mean motor-driven vehicles in excess of eight feet in width equipped with pneumatic tires designed and constructed for moving or transporting earth and rock in connection with excavation and grading work, and truck with small wheels used in a factory, warehouse or railroad station, spreaders and sprayers (generally meaning an agricultural vehicle used to spread or spray agricultural chemicals, agricultural line and/or agricultural fertilizers), fire vehicles and tractor-trailer combinations designed and used as a unit exclusively for the same purposes as the above named vehicles; motor vehicles, other than motor vehicles manufactured and equipped primarily for the transportation of passengers, trailers and semitrailers, to be operated by any person, upon a public highway for the purpose of traveling by the most direct route, but in no event further than 25 miles one-way from a point on the farms and designated by the vehicle owner and set forth in an attachment to the vehicle registration; This term shall not include vehicles that are specially equipped for emergency response by the department, office of emergency management, sheriff's office of the department of finance, police department or fire department.
(16) Low NOx rebuild label means the label stipulated in the consent decrees, which meets all of the following specifications:
(26) Regulated entity work means labor, services, material and/or equipment that is provided by the regulated entity through its employees or prime contractors except it does not include labor, services, materials, and/or equipment provided by:
(27) State and regional public authority means: