Gov. Code, § 6504

The parties to the agreement may provide that (a) contributions from the treasuries may be made for the purpose set forth in the agreement, (b) payments of public funds may be made to defray the cost of such purpose, (c) advances of public funds may be made for the purpose set forth in the agreement, such advances to be repaid as provided in said agreement, or (d) personnel, equipment or property of one or more of the parties to the agreement may be used in lieu of other contributions or advances. The funds may be paid to and disbursed by the agency or entity agreed upon, which may include a nonprofit corporation designated by the agreement to administer or execute the agreement for the parties to the agreement.