Any joint powers agency which, prior to January 1, 1972, has issued revenue bonds pursuant to Section 6571.1 of this article for the purpose of acquiring and constructing sanitary sewer facilities, may, in addition to the powers authorized by Article 1 (commencing with Section 6500) and this article issue revenue bonds for the following purposes:
(a) To refund all or any part of the principal amount of any revenue bonds previously issued for the acquisition and construction of sanitary sewer facilities.
(b) To acquire directly by acquisition of title or by acquisition of capacity rights, and construct, sanitary sewer facilities, including but not limited to collection, treatment, and disposal works and facilities or the refunding of such bonds; provided, that this subdivision shall have no force or effect after December 31, 1977.
(Added by Stats. 1973, Ch. 256.)