Tex. Nat. Res. Code § 134.097
(b) On proper documentation supporting the use of the mining technique to obtain crop yields equivalent to or higher than yields on surrounding nonmined soil of the same type, the commission may authorize the permit holder, without regard to soil horizons, to:
Added by Acts 1995, 74th Leg., ch. 76, Sec. 12.02(a), eff. Sept. 1, 1995.