Tex. Natural Resources Code § 164.017: TAX EXEMPT.

Since the board is performing an essential governmental function in the exercise of the powers conferred on it by this chapter, the bonds issued under this chapter, and the interest and income from the bonds, including any profit made on the sale of bonds, and all fees, charges, gifts, grants, revenues, receipts, and other money received or pledged to pay or secure the payment of bonds are free from taxation and assessments of every kind by this state and any city, county, district, authority, or other political subdivision of this state.

Added by Acts 1993, 73rd Leg., ch. 242, Sec. 3.01, eff. Aug. 30, 1993.