La. Stat. tit. 33 § 4545.20
The Authority is hereby authorized to provide by resolution for the issuance of revenue refunding bonds of the Authority for the purpose of refunding any revenue bonds then outstanding and issued under the provisions of this Chapter, whether or not such outstanding bonds have matured or are then subject to redemption. The Authority is further authorized to provide by resolution for the issuance of a single issue of revenue bonds of the Authority for the combined purposes of (i) paying the cost of any project and (ii) refunding revenue bonds of the Authority which shall theretofore have been issued under the provisions of this Chapter and shall then be outstanding, whether or not such outstanding bonds have matured or are then subject to redemption. The issuance of such bonds, the maturities and other details thereof, the rights and remedies of the holders thereof, and the rights, powers, privileges, duties and obligations of the Authority with respect to the same, shall be governed by the foregoing provisions of this Chapter insofar as the same may be applicable.
La. R.S. § 33:4545.20