(a) As authorized by Transportation Code, Chapter 204, the department will publish the Texas Official Travel Map for the general traveling public. The map will show cities, towns, and highways, as described in this section, the mileage between selected points, and the locations of Texas state parks, national forests, national parks and wildlife refuges, safety rest areas, travel information centers, major lakes and rivers, counties, and other geographic information selected by the department.
(b) The map may include a city or town with a population of 50 or more that is:
  (1) located on the state-maintained highway system; or
  (2) near a significant park or recreational area, or a historical, recreational, or scenic facility that is of interest to tourists and regularly open to the public.
(c) The map will include highways that are designated by the commission and regularly open to public traffic including:
  (1) interstate highways;
  (2) United States highways;
  (3) state highways;
  (4) farm-to-market, ranch-to-market, or recreational roads that connect with one or more higher-grade highways or roadways; and
  (5) farm-to-market, ranch-to-market, or recreational roads, spurs, loops, business routes, or park roads that provide access to widely recognized parks, lakes, tourism attractions, or recreational areas.
(d) The map may include map insets that show a few primary highways or through routes in selected cities or areas of the state. The department will select a city or area for an inset in a manner to best use the limited space available on the map and on the basis of annual traffic volume in each of the metropolitan areas or on the basis of the city or area being a port of entry.
(e) The map may include a chart that shows the mileage between selected cities and towns. In selecting a city or town for the chart, the department will consider:
  (1) the significance of its location as a geographic reference point for calculating long-distance trips within Texas, assuring a statewide balance in the selections;
  (2) the importance of its location as a gateway or entrance point to the state or as the site of significant highway intersections;
  (3) whether it is a primary travel or tourist destination; and
  (4) its population.

Source Note: The provisions of this §23.14 adopted to be effective January 7, 2015, 40 TexReg 95