Tennessee Code Title 2. Elections § 2-2-140

(a)(1) The state coordinator of elections is encouraged to make every reasonable effort to enter into agreements with other states for the purpose of comparing data to identify duplicate voter registrations. If agreements are entered into with other states, upon finding any duplicate voter registrations, the state coordinator of elections shall make every effort to determine in which state the voter is rightfully entitled to vote.

(2) The state coordinator of elections shall promulgate rules and regulations for any agreements entered into that make provisions for security, maintenance of the integrity of Tennessee's voter information and a method to determine, verify and resolve duplicate voter registrations between the states. All such rules and regulations shall be promulgated in accordance with the Uniform Administrative Procedures Act, compiled in title 4, chapter 5.