Tennessee Code Title 66. Property § 66-6-106

(a) The terms Tennessee Coordinate System of 1927, Tennessee Coordinate System of 1983, or Tennessee State Plane Coordinate System must not be used on any map, report of survey, or other document, unless the coordinates contained within such document are based on the Tennessee coordinate system as defined in this chapter.

(b) Any document containing coordinates based upon a system of plane coordinates defined in this chapter shall contain a statement that indicates whether the Tennessee Coordinate System of 1927, the Tennessee Coordinate System of 1983, or the Tennessee State Plane Coordinate System was used.

(c) This chapter must not be construed to prohibit the appropriate use of other datums and other geodetic reference networks.