9.02 Alteration in Contracts.

   Whenever, in the prosecution of any work or improvement under contract, it becomes necessary in the opinion of the City Manager to make alterations in the contract, no alterations shall be valid unless the new price to be paid for any supplies, material or work under the altered contract has been appropriated and shall have been agreed upon in writing and signed by the contractor and the Manager prior to such authorization. (Amended 11-3-20.)