Tex. Loc. Gov't Code § 142.053
(a) Not later than the 30th day after the date the governing body of a municipality receives from a police officers association a petition signed by the majority of all police officers, excluding the head of the law enforcement agency for the municipality and excluding the employees exempt under Section 142.058(b), that requests recognition of the association as the sole and exclusive bargaining agent for all the police officers employed by the municipality, excluding the head of the law enforcement agency for the municipality and excluding the exempt employees, the governing body shall:
(b) If the governing body of a municipality orders a certification election under Subsection (a)(3) and the association named in the petition is certified to represent a majority of the affected police officers of the municipality, the governing body shall, not later than the 30th day after the date that results of that election are certified:
Added by Acts 2005, 79th Leg., Ch. 1193 (H.B. 304), Sec. 2, eff. September 1, 2005.