Sec. 135.56.  BONDS AND NOTES;  PLEDGE OF REVENUE.  (a)  The board may irrevocably pledge the fees, charges, revenues, and the proceeds of the lease, sale, transfer, or exchange of or from the buildings, land, structures, and the additions to the existing buildings and structures authorized to be constructed, improved, or equipped and to pledge the revenue of the proceeds of the lease, sale, transfer, or exchange of or from any other revenue-producing buildings, structures, facilities, and other property to the payment of the interest on and the principal of bonds authorized to be issued by Chapter 55 of this code, and to enter into agreements regarding the imposition of fees, charges, and other revenue and the collection, pledge, and disposition as the board deems appropriate.  However, where land and improvements on the land, the revenue of which has been pledged to pay bonds, are to be sold, the sale is conditioned on the deposit by the board of the proceeds of the sale to the sinking fund created by the bond order of the issuing authority.
(b)  All income received by the board under the provisions of this section shall be accounted for and used in the same manner as other money available to the board for the establishment or operation of the system.
(c)  The bonds authorized to be issued under Chapter 55 of this code are special obligations of the board issuing the bonds and are payable only from a pledge of the fees, charges, and other revenues authorized by this section and from the proceeds of the lease, sale, transfer, or exchange of land and improvements on the land the revenue of which is pledged to secure the payment of interest on and principal of the bonds.
(d)  The board, in addition to the authority already provided, may issue revenue bonds for the purposes authorized and in the manner prescribed and under the terms and conditions set forth in Chapter 55 of this code.
(e)  The board may issue additional revenue bonds for the purposes authorized and in the manner prescribed by 26 U.S.C. Section 142, relating to airport development, water and sewage treatment, residential construction, and other matters within the role and scope of the system.
Acts 1971, 62nd Leg., p. 3318, ch. 1024, art. 1, Sec. 1, eff. Sept. 1, 1971.  Amended by Acts 1991, 72nd Leg., ch. 287, Sec. 18, eff. Sept. 1, 1991.