Tex. Loc. Gov't Code § 5.004 : LOCAL GOVERNMENT CODE — ORGANIZATION OF MUNICIPAL GOVERNMENT — TYPES OF MUNICIPALITIES — TYPES OF MUNICIPALITIES IN GENERAL — TYPES OF MUNICIPALITIES — Home-Rule Municipality
A municipality is a home-rule municipality if it operates under a municipal charter that has been adopted or amended as authorized by Article XI, Section 5, of the Texas Constitution.
Tex. Loc. Gov't. Code § 5.004
Acts 1987, 70th Leg., ch. 149, Sec. 1, eff. 9/1/1987.