Tenn. Code Ann. § 54-20-203: Fence or hedge required

(a) Any person who maintains an automobile graveyard, any part of which is within five hundred feet (500') of any state highway, shall erect and maintain a fence or hedge around the automobile graveyard.

(b) The fence or hedge shall be at least six feet (6') high and sufficient to conceal the automobile graveyard from the view of a person standing at the same level as the graveyard; provided, that no fence or hedge shall be required where erection of the fence or hedge would not effectively conceal a substantial portion of the automobile graveyard from the view of a person on the highway.