N.Y. Veh. & Traf. Law § 2283

§ 2283. Display of registration. 1. The registration number with\nindicia of registration assigned to an ATV shall be displayed on the\nvehicle at all times in such a manner as the commissioner may, by\nregulation, prescribe.\n 2. Dealer demonstrator registration numbers shall conform to the\nrequirements set forth in subdivision one of this section with the\nexception that, unless otherwise prescribed by regulation of the\ncommissioner, the numbers assigned may be printed upon or attached to a\nremovable plaque or plaques to be temporarily but firmly affixed to the\nATV being demonstrated or tested.\n 3. Numbers issued to dealers and manufacturers for the purpose of\ndemonstration or testing shall be used exclusively for these purposes\nand no other use is permitted.\n