Tex. Transp. Code § 551.303
(a) A neighborhood electric vehicle may be operated only on a street or highway for which the posted speed limit is 45 miles per hour or less. A neighborhood electric vehicle may cross a road or street at an intersection where the road or street has a posted speed limit of more than 45 miles per hour. A neighborhood electric vehicle may not be operated on a street or highway at a speed that exceeds the lesser of:
Added by Acts 2003, 78th Leg., ch. 1320, Sec. 7, eff. Sept. 1, 2003.
Acts 2009, 81st Leg., R.S., Ch. 722 (S.B. 129), Sec. 2, eff. September 1, 2009.