Procedures and requirements of this chapter shall apply to all contracts for services, public work, or labor and material, and all purchases and leases and rentals of supplies, materials, equipment, or other personal property by the county except as exempted by the terms of this chapter. This chapter establishes this division of the county, its functions, and purchasing and contracting standards and procedures. Each division and department of the county shall be responsible for submittal of purchasing requisitions as required by the purchasing division and assuring that purchases and other expenditures covered by this chapter are within and provided by the budget of such division or department. (Added by Ord. 80-110 § 2, Jan. 20, 1981; Amended by Ord. 86-003 § 2, Feb. 12, 1986; Amended by Ord. 89-027 § 2, May 17, 1989).