The County shall permit any governmental or quasi-governmental entity to participate in or purchase from contracts for materials, supplies, furnishings, equipment, other personal property and nonprofessional services entered into by the County with its vendors. The Purchasing Officer shall be responsible for drafting and implementing regulations governing the participation of any other governmental or quasi-governmental entity in and the purchase from contracts for materials, supplies, furnishings, equipment or other personal property and nonprofessional services entered into by the County and its vendors.