La. Stat. tit. 33 § 4548.8
Subject to the rights of the owners of the bonds of the authority, the authority is hereby authorized and empowered to issue from time to time its bonds for the purpose of refunding any bonds of the authority then outstanding, together with the payment of any redemption premiums thereon and interest accrued or to accrue to the date of redemption of such outstanding bonds. All such refunding bonds of the authority shall be issued, sold, or exchanged and delivered, shall be secured, and shall be subject to the provisions of this Chapter in the same manner and to the same extent as any other bonds issued by the authority pursuant to this Chapter, unless otherwise determined by the resolution of the authority. Refunding bonds issued by the authority as herein provided may be sold or exchanged for outstanding bonds of the authority and, if sold, the proceeds thereof may be applied, in addition to any other authorized purposes, to the purchase, redemption, or repayment of such outstanding bonds.
La. R.S. § 33:4548.8