37 Tex. Admin. Code § 1.151
The director of the Texas Department of Public Safety is authorized to exempt certain vehicles from having printed on them the inscription set out in Texas Transportation Code, §721.002. In order to further law enforcement capabilities and effectively carry out administrative functions, the director exempts from the inscription requirement those department vehicles that will be routinely used by personnel involved in confidential, legal, and personnel investigations which require that personnel go undetected in order to accomplish the task.
Source Note:The provisions of this §1.151 adopted to be effective January 1, 1976; amended to be effective December 5, 1978, 3 TexReg 4089; amended to be effective January 1, 1980, 4 TexReg 4630; amended to be effective April 20, 1992, 17 TexReg 2404; amended to be effective June 29, 2000, 25 TexReg 6154.