Tenn. Code Ann. § 62-44-104: Materials not to be commingled for ten (10)

The dealers shall keep on hand and in separate packages and not allow to be mixed or confused with other purchases, in order that identification may be easy, all surplused or used building materials bought or gotten from any person, the building materials, to be kept separate and subject to easy and convenient inspection of anyone desiring to investigate for a period of no less than ten (10) days after purchase or in any way acquired.