Tennessee Code Title 54. Highways, Bridges and Ferries § 54-5-1101

(a) There is authorized to be established a system of specific service signs within the rights-of-way of highways on the interstate system and on adjoining public roads in the vicinity of the highways for the purpose of advising the traveling public of specific business establishments within certain eligible categories. Multi-lane, fully controlled-access roads are permitted to participate in the specific service sign system in accordance with the guidelines established for the program, and the commissioner of transportation is directed to add the roads to the system. If space is available, a specific business establishment shall not be excluded from participating in the specific service sign program because the establishment does not serve breakfast. The establishment may occupy any available space on a specific service sign if doing so would not exclude a business establishment that does serve breakfast.

(b) The specific service signs shall be within the guidelines prescribed by the Manual on Uniform Traffic Control Devices.

(c) As portions of State Route 840 are opened, these portions shall be included in the specific service sign program provided for in this part; provided, that eligibility of interchanges and businesses for participation in this program shall be determined in accordance with regulations that the commissioner has promulgated pursuant to this part.