This statement of prompt payment policy shall be applicable to all contract payments. A contract payment is a payment to a contractor pursuant to a written contract, or an amendment thereto, signed by an authorized officer of the authority and of the contractor, a fully executed change order or an executed purchase order. A contractor is a person, partnership, private corporation, limited liability company or association:
N.Y. Comp. Codes R. & Regs. Tit. 21 § 4701.4