N.Y. Comp. Codes R. & Regs. tit. 9, § 4205.1
(b) No person shall participate in or at any quarter horse race meet as owner, trainer, assistant trainer, jockey, groom, farrier, veterinarian, agent, goods supplier, salesman, jockeys' agents, stable employees, authorized agent, sub-agent, stable manager and any other employee of an owner associated with such owner's racing activities or be the holder or operator of any concession (if a corporation a license shall also be required of officers and directors and its employees) or perform any service, including but without limiting the generality thereof, the conduct of negotiations on behalf of any person or persons who engage in any racing activities or perform any services in connection with the conduct of any quarter horse race meeting, or engage in any occupation or employment at any quarter horse race meet, unless such persons shall have received an occupational license from the commission with the following exceptions: