Tenn. Code Ann. § 54-17-108: Advertising or junkyards prohibited on scenic highways - Authority of commissioner to acquire

(a) Whenever a road or highway has been designated part of the system, it is unlawful for any person to construct, use, operate or maintain any sign, except as provided in subsection (c) or § 54-17-109 , or junkyard within two thousand feet (2,000') of any road or highway that is a designated part of the system and that is located either outside the corporate limits of any city or town or at any place within a tourist resort county, as defined in § 42-1-301 .

(b) The commissioner is authorized to acquire an outdoor advertising device or junkyard by purchase, gift, or condemnation, and to pay just compensation for the removal of these devices and junkyards.

(c) Any outdoor advertising device lawfully in existence prior to the designation of the scenic byway may be maintained, repaired, or reconstructed according to the original application for the outdoor advertising permit.