All HDDVs subject to the requirements of this Subpart and that operate in New York State, except for those exempted in section 217-5.2(a) of this Subpart, shall be subject to the smoke opacity standards set forth in Table 1 as follows:
Table 1
Smoke Opacity Standards For Heavy Duty Diesel-Fueled Vehicles
Engine model year | Maximum opacity (percent) |
1973 and older | 70 |
1974 - 1990 | 55 |
1991 and newer | 40 |
N.Y. Comp. Codes R. & Regs. Tit. 6 §§ 217-5.3