Tennessee Code Title 66. Property § 66-6-105

(a) For purposes of describing the location of any survey station or land boundary corner in this state, it is considered a complete, legal, and satisfactory description of such location to give the position of such survey station or land boundary corner on any system of plane coordinates defined in this chapter; provided, that any person choosing to use a system of plane coordinates to describe any such survey station or land boundary after December 31, 1992, shall use the Tennessee Coordinate System of 1983 and after December 31, 2022, shall use the Tennessee State Plane Coordinate System.

(b) Nothing contained in this chapter requires a purchaser or mortgagee of real property to rely wholly on a property description, any part of which depends exclusively upon any Tennessee coordinate system.