N.Y. Comp. Codes R. & Regs. tit. 9 § 4622.5
No commission, salary, compensation, reward, recompense, reimbursement of expenses or gift or other consideration shall be paid, directly or indirectly, to any person for conducting or assisting in the conduct of any game or games of chance, except as hereinafter provided for bookkeepers or accountants who assist by rendering their professional services. No tip, gratuity or gift or other consideration shall be offered, given or accepted by any person conducting or assisting in the conduct of a game or games of chance, either directly or indirectly, and one or more signs prohibiting tipping shall be prominently displayed in each playing area. No person shall offer, solicit or receive any gift or donation or other consideration, directly or indirectly, on the premises during the conduct of a license period of games of chance.
N.Y. Comp. Codes R. & Regs. Tit. 9 § 4622.5