Tennessee Code Title 2. Elections § 2-5-213

The county election commission shall, where voting machines are used, provide adequate facilities for the instruction of voters prior to each election. The commission shall have in one (1) or more convenient public places a voting machine with samples of ballot labels affixed for the purpose of instructing voters in the operation of the machine. The samples of ballot labels may not contain the names of or names similar to those of candidates in the election.