Tennessee Code Title 60. Oil and Gas § 60-3-113

(a) It is unlawful for any dealer, distributor or manufacturer of oils or substances to refuse to admit an inspector upon the dealer's, distributor's or manufacturer's premises, to such extent as it may be necessary for the performance of the inspector's duties, or to obstruct an inspector in the discharge of the inspector's duties.

(b) It is unlawful for any person to mix, for sale, naphtha and other such oils or substances or same with any corrosive substance, or to knowingly sell, or keep for sale, or offer for sale, the mixture, or to sell, or offer for sale any products which are not of required test.

(c) It is unlawful for any person to violate any of the other provisions of this part with the intent of obstructing the commissioner or delegate in the performance of the commissioner's or delegate's duties under this chapter.

(d) A violation of this section is a Class C misdemeanor.