Tennessee Code Title 60. Oil and Gas § 60-3-103

(a) It is unlawful for any person to sell or offer for sale, or to bring to rest in Tennessee for consumption, storage, sale or use, any ethanol, methanol, benzol, gasoline, burning oil, distillate, fuel oil, gas oil, kerosene, naphtha, or substitutes for any of these by whatever trade name known, reflecting a gravity of sixteen degrees (16°) or above on the American Petroleum Institute scale or a lower standard of quality than the minimum specifications for the substances published from time to time by the United States government or other recognized authority.

(b) It is unlawful for any person or persons to distill, manufacture, or otherwise produce ethyl alcohol, methane alcohol, or other liquids to be used as a fuel or to be blended as a fuel for combustion engines or heating oil systems without denaturing such liquid no later than immediately following the distilling process by providing for flow of the liquid from the condensing apparatus into a container containing a quantity of the denaturing agent.

(c) It is unlawful to distribute to any manufacturer, wholesaler, or retailer in this state ethyl alcohol, methane alcohol, or other liquids to be blended as a fuel for combustion engines or heating oil systems, in any container of fifty-five gallons (55 gals.) or less, unless such container is prominently labelled with the words “POISON: UNSAFE FOR HUMAN CONSUMPTION”.

(d) The denaturing agent used shall be determined by the commissioner or the commissioner's designated agent.

(e) Each separate violation of a provision of this section is a Class C misdemeanor.