N.Y. Comp. Codes R. & Regs. tit. 9, § 378.1
(r) Except for emergencies, no person shall cause or permit a motor vehicle to be stopped, other than within an authorized parking area, on the following parkways:
(s) Except pursuant to a permit issued by the commissioner, during the period from December 15th through March 31st of each year, no person shall operate or cause to be operated any motor-driven vehicle except a snowmobile upon the customarily unplowed roads of Allegany State Park which are part of the designated snowmobile trail system of the park. Such roads include, but are not limited to, the following: