Tex. Elec. Code § 41.033
Notwithstanding Section 41.031(a), an entity created under Section 52, Article III, or Section 59, Article XVI, Texas Constitution, may close the polls before 7 p.m. in an election held by the entity if:
Added by Acts 1997, 75th Leg., ch. 1070, Sec. 49, eff. Sept. 1, 1997.