The Purchasing Agent shall be responsible for procurement of all materials, supplies, and contractual services required by any and all departments of the city, except, to the Chief of Police, such purchases as to which, because of their nature as related to confidential, special or covert operations of the Police Department, the public interest in maintaining confidentiality outweighs the public interest in public disclosure thereof, as determined by the Chief of Police; technical and special advisory or engineering services procured by the City Council; subsistence and travel expenses procured in accordance with instruction issued by the City Council; election expenses incurred by the City Clerk; library books and supplies procured by the person designated as City Librarian; Data Processing technical computer hardware and software leased or procured by the Data Processing Manager; special investigative services and rehabilitation services procured by the City’s Risk Manager; purchases through the Stadium, Arena, Convention Center, and Golf Courses food and beverage reserve accounts which are approved by the Executive Director of Convention, Sports and Entertainment or the Golf General Manager; recoverable event-related services and materials reimbursed by tenants of the Stadium or Convention Center; and purchases made pursuant to the authority of the City Manager. All services, leases, or purchases by the above Departments, Divisions or Sections shall not exceed appropriations. (Ord. 3511 § 2; March 2, 1976: Ord. 4181 § 1; November 4, 1980: Ord. 4554 § 1; November 27, 1984: Ord. 4740 § 1; July 29, 1986: Ord. 5303 § 1; May 12, 1992: Ord. 6195 § 3; November 16, 2010.)