The County may either participate in, sponsor, conduct, administer, or enter into a cooperative purchasing contract for the procurement of any goods, services, or construction, or the cooperative use of goods, services, or construction with a public entity. The cooperative procurement may include joint contracts or multi-party contracts. If the facilities and services of the Procurement Office are made available to another public entity, the Director may require the public entity to pay a fee for the services provided by the Procurement Office. (1994 L.M.C., ch. 30, § 1.)