N.Y. Public Buildings Law § 18: Change in contracts

§ 18. Change in contracts. Any change, addition or deduction made in

any contract by reduction in price, by addition in price or otherwise

must be done by an order on contract which may be issued by the

commissioner of general services. This order shall specifically set

forth conditions of the change or other modification and shall be

approved by the board, department, commission or officer having

jurisdiction. After having been approved by him the order shall be

forthwith filed in the office of the state comptroller.