Tex. Gov't Code § 311.022 : GOVERNMENT CODE — LEGISLATIVE BRANCH — LEGISLATION — CODE CONSTRUCTION ACT — CONSTRUCTION OF STATUTES — Prospective Operation of Statutes TEXT PDF A statute is presumed to be prospective in its operation unless expressly made retrospective. Tex. Gov't. Code § 311.022 Acts 1985, 69th Leg., ch. 479, Sec. 1, eff. 9/1/1985.