Tennessee Code Title 65. Public Utilities and Carriers § 65-31-104

(a) Except as provided in § 65-31-109, no person may excavate in a street, highway, public space, a private easement of an operator or within one hundred feet (100′) of the edge of the pavement of a street or highway, or demolish a building, without giving the notice required by § 65-31-106 in the manner prescribed by such section.

(b) A general DIG certificate shall be issued for agricultural land as defined in § 67-5-1004 that lies outside a street, highway, public space or a private easement of an operator but within one hundred feet (100′) of the edge of the pavement of a street or highway when no utilities are located within that area. The general certificate shall be valid until title to the land is transferred or until a utility line is located within the area.