(a) Whenever it is desirable for the City to enter into a contract in excess of $10,000 with a second party, the City Attorney shall draw or approve the instrument as to form. The officer charged with maintaining the City accounting system shall certify as to the sufficiency of funds. Copies of all contracts in excess of $10,000 shall be filed in the office of the Clerk - Treasurer. The amount of $10,000 may be adjusted periodically to reflect changes in the Consumer Price Index as stated by the U.S. Government.
(b) Alterations or change orders to contracts shall be made only by resolution of the Council. No such order shall be effective until the price to be paid for the material and work under the altered contract, has been agreed to and the order has been written and signed by the contractor and the City Manager, upon authority of the Council. The Clerk shall attach to the original contract a copy of the signed agreement and certify the proceedings authorizing the alteration.