Texas Transportation Code - TRANSP § 547.105. Lighting Standards for Certain Vehicles

(a) The Texas Department of Transportation shall adopt standards and specifications that:

(b) The Texas Department of Transportation may adopt standards and specifications for lighting that permit the use of flashing lights for identification purposes on highway maintenance or construction vehicles and service vehicles.

(c) The standards and specifications adopted under this section are in lieu of the standards and specifications otherwise provided by this chapter for lamps on vehicles.