Tex. Health & Safety Code § 371.028

Not later than January 1, 1996, the commission shall adopt rules, standards, and procedures necessary to implement the used oil recycling program established by this chapter. Unless otherwise required by federal or state law, the rules, standards, and procedures must be consistent with and not more stringent than the used oil management standards under the Resource Conservation and Recovery Act of 1976 (42 U.S.C. Section 6901 et seq.).