The department may enter into an agreement with a public or private entity for a digital message display system to promote department information or news items of general interest in a publicly accessible area of a facility operated by the department. For the purpose of funding the system, a portion of the information displayed on the system may consist of digital advertisements. The department may review and has the right to reject any proposed advertising to be displayed on a system.
Tex. Transp. Code § 1001.014