N.Y. Comp. Codes R. & Regs. tit. 9, § 5300.3
(a) Gaming facility employees.
In addition to the requirements set forth in section 1336 of the Racing, Pari-Mutuel Wagering and Breeding Law, all employees of a gaming facility licensee holding a gaming employee registration issued by the commission are prohibited from wagering in any facility in which the employee is employed or any facility owned or operated by that gaming facility or an affiliate of that gaming facility.
(b) Casino vendor enterprise employees.
All employees of a casino vendor enterprise required to be qualified pursuant to Racing, Pari-Mutuel Wagering and Breeding Law section 1326(4) are prohibited from wagering in any gaming facility in which such casino vendor enterprise provides goods or services.