Tex. Occupations Code § 1301.501: BACKFLOW PREVENTION.

(a) A person may not sell, donate, or transfer a water closet plumbing fixture or other equipment that uses water if the fixture or equipment:

(1) does not comply with a state-approved plumbing code; and

(2) may permit the backflow of a nonpotable substance into a potable water supply.

(b) The board shall adopt rules under this section that include a list describing the types of plumbing to which this section applies.

Added by Acts 2001, 77th Leg., ch. 1421, Sec. 3, eff. June 1, 2003.