Tennessee Code Title 2. Elections § 2-7-113

(a) When the voter is to vote by voting machine, the voter shall then present the ballot application to the machine operator, enter the machine, and vote by marking the ballot and operating the machine.

(b) The machine operator shall file the ballot applications in order of presentation and shall permit the voter to operate the machine for those elections in which the voter is entitled to vote.

(c) The machine operator shall, upon demand of any voter before the voter enters the machine, tell the voter the order of the offices on the ballot and fully instruct the voter on how to operate the machine.