Tex. Loc. Gov't Code § 171.005
(b) Except as provided by Section 171.004(c), the affected member may not participate in that separate vote. The member may vote on a final budget if:
Acts 1987, 70th Leg., ch. 149, Sec. 1, eff. Sept. 1, 1987. Renumbered from Sec. 171.006 and amended by Acts 1989, 71st Leg., ch. 1, Sec. 40(a), eff. Aug. 28, 1989.