Tennessee Code Title 62. Professions, Businesses and Trades § 62-44-102

(a) All dealers in used or surplused building materials shall obtain from the seller of the used or surplused building materials proper identification consisting of the seller's name and address and the seller's driver license number or vehicle license plate number or social security number.

(b) In lieu of obtaining any of the above identification, if the seller is a building materials dealer who has registered with the county clerk in accordance with § 67-4-706, the seller shall provide an invoice, which shall include the name and address of the dealer or provide a sworn affidavit, including the name and address of the seller, the name and address of the person, firm or source from whom or which the seller acquired the used or surplused building materials and the condition and quantity of the used or surplused building materials.

(c) All dealers shall keep the records for a period of three (3) years and the records shall be filed by date of purchase.