Sec. 623.257.  SPEED LIMIT.  Movement authorized by a permit issued under this subchapter may not exceed the posted speed limit or 55 miles per hour, whichever is less.  A violation of this provision constitutes a moving violation.
Added by Acts 2005, 79th Leg., Ch. 538 (H.B. 1044), Sec. 1, eff. June 17, 2005.