(a) This section applies only to increasing the speed limit within an existing speed zone from 70 miles per hour to 75 miles per hour, as authorized by the legislature.     
      (b) The speed zone study necessary for increasing the speed limit from 70 to 75 miles per hour may, at the sole discretion of the department, be limited to the determination of the 85th percentile speed at one or more speed check locations within the established speed zone. Because the boundaries of the speed zone have been established for the 70 mile per hour zone, a strip map is not required for the increase.     
      (c) The provisions of this subchapter related to establishing a speed limit apply to an action under this section unless such a provision conflicts with this section, in which event this section controls to the extent of the conflict.     
     Source Note:        The provisions of this §25.26 adopted to be effective October 20, 2011, 36 TexReg 6968