Gov. Code, § 91548

An action may be brought pursuant to Chapter 9 (commencing with Section 860) of Part 2 of Title 10 of the Code of Civil Procedure, to determine the validity of bonds, proceedings, project agreements, or indentures, including, without limiting the generality of the foregoing, the legality of all proceedings theretofore taken for or in any way connected with the establishment of the authority and its authorization to transact business and exercise its powers, and also including the legality of all proceedings, as proposed to be taken in the proceedings, project agreements, and indentures theretofore undertaken, for the authorization, issuance, sale, and delivery of bonds and the payment thereof and interest thereon, and all such matters respecting which an action may be brought pursuant to such chapter shall be subject to the provisions thereof regarding validity and incontestability.