Tex. Parks & Wild. Code § 21.001

The department, by resolution of the commission, from time to time may provide for the issuance of negotiable bonds in an aggregate amount not to exceed $75 million pursuant to the provisions of Article III, Section 49-e, of the Texas Constitution. All bonds provided for under this section shall be issued by the Texas Public Finance Authority, acting on behalf of the department. In connection with the issuance of such bonds, the Texas Public Finance Authority is subject to all rights, duties, and conditions set forth in this chapter with respect to the issuance of bonds by the department.