Notwithstanding Part 43 of this Chapter, a bus to which a step has been added to aid passengers in boarding or alighting from the vehicle, and which step causes the bus to become 80 inches or more in width, need not be equipped with front or rear identification lamps or clearance lamps, provided that:
N.Y. Comp. Codes R. & Regs. Tit. 15 § 56.6