Tex. Local Government Code § 361.052

(a) The governing body of an entity is empowered and authorized to issue, or to provide for the issuance of, obligations and to execute credit agreements in relation thereto in order to finance project costs of an eligible project, or to refund obligations issued or incurred in connection with an eligible project. This subsection applies regardless of when:

(1) the obligation is due; or

(2) title to the project is transferred to the entity.

(b) Money to be paid pursuant to a lease obligation and revenues derived by an entity from the operation of an eligible project constitute revenues to an entity that may be pledged to secure or pay any obligations, and the entity's obligations may be made payable from and secured by, in whole or in part, those revenues. An entity may apply the provisions of Chapter 1371, Government Code, Section 271.052 or 361.053, or any combination of those laws to the issuance of obligations and the execution of credit agreements to satisfy the purposes of this subchapter, except that an entity's obligations may be refunded by the issuance of public securities, as defined by Section 1201.002, Government Code, that are payable from a pledge of ad valorem tax receipts only if the issuance of the public securities is approved by a majority of votes cast at an election conducted in accordance with the bond election procedures established by Chapter 1251, Government Code.