Tenn. Code Ann. § 44-19-111

With respect to any referendum conducted under this chapter, the commissioner shall, before calling and announcing such referendum, give notice of the effective date of the assessment, if adopted, and the amount and basis of the assessment proposed to be collected; provided, that no assessment levied under this chapter shall exceed ten cents (10¢) per hundred weight. Voting in the referendum shall be by mail ballots returned to an address determined and announced by the commissioner who shall mail a ballot to all qualified producers eligible to vote in the referendum.