(a) The authority may issue refunding bonds to refund outstanding authority bonds and interest on the bonds.
(b) Refunding bonds may:
(1) be issued to refund bonds of one or more series;
(2) combine the pledges for the outstanding bonds for the security of the refunding bonds; or
(3) be secured by a pledge of other or additional revenue.

(c) The provisions of this subchapter regarding the issuance of other bonds, their security, and the remedies of the holders apply to refunding bonds.
(d) The comptroller shall register the refunding bonds on surrender and cancellation of the bonds to be refunded.
(e) Instead of issuing bonds to be registered on the surrender and cancellation of the bonds to be refunded, the authority, in the resolution authorizing the issuance of the refunding bonds, may provide for the sale of the refunding bonds and the deposit of the proceeds in a bank at which the bonds to be refunded are payable. In that case, the refunding bonds may be issued in an amount sufficient to pay the principal of and interest on the bonds to be refunded to their option date or maturity date, and the comptroller shall register the refunding bonds without the concurrent surrender and cancellation of the bonds to be refunded.