Tenn. Code Ann. § 67-3-817: Invoices

(a) Each supplier, importer and wholesaler selling petroleum products in this state shall, at or near the time of each sale, make out and deliver to the purchaser, a prenumbered invoice in which the vendor shall enter the name of the vendor, the full name and complete delivery address of the purchaser, the date of delivery, the type of fuel, a notation for dye added, the total dollar amount of the purchase, the amount of state tax, and the number of gallons of product sold.

(b) The commissioner may assess a civil penalty of five hundred dollars ($500) for each month in violation, or portion of a month, against a person who fails to execute and deliver invoice documents as provided in this section.