Notwithstanding any other provisions of this subchapter, toll revenue bonds issued by the commission may:
(1) be payable from and secured by:
(A) payments made under an agreement with a local governmental entity as provided by Section 228.254;
(B) the proceeds of bonds issued for the toll project or system;
(C) amounts deposited in a debt service reserve fund as required by the trust agreement securing bonds issued for the project or system; or
(D) surplus revenue of another toll project or system as authorized by Section 228.006; and
(2) state on their faces any pledge of revenue or taxes and any security for the bonds under the agreement.
Official text of the Texas Transportation Code as published by the Texas Legislative Council.