Tex. Health & Safety Code § 264.026
(a) Except as provided by Subsection (b), through charging sufficient rates for services provided by a hospital and through its other revenue sources, the board shall produce revenue sufficient to:
(b) If the hospital is used, operated, or acquired by a nonprofit corporation under Chapter 223 or is leased, the board shall require the nonprofit corporation or the lessee to charge rates for services provided by the hospital that are sufficient, with the nonprofit corporation's or lessee's other sources of revenue, to:
(2) make payments or pay rentals to the authority that are sufficient, with the authority's other pledged sources of estimated revenue, to:
Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.