37 Tex. Admin. Code § 385.9975
All state vehicles shall bear the inscription as provided in Texas Civil Statutes, Article 6701m-1, except vehicles normally used by personnel who transport youth in the vehicle, who are on 24-hour emergency call, or whose duties require regular and extended travel away from their home base. The purposes to be served by not printing the inscription on these vehicles are to avoid public identification of youth as wards of the state, to facilitate the apprehension of runaways and to minimize the possibility of personal injury and vandalism of State property.
Source Note:The provisions of this §385.9975 adopted to be effective December 31, 1996, 21 TexReg 12194; transferred effective June 4, 2012, as published in the Texas Register June 22, 2012, 37 TexReg 4639.