Tennessee Code Title 67. Taxes and Licenses § 67-3-812

(a) A vendor delivering dyed diesel fuel to consumers through pumps shall be required to prominently display on such pumps the language “Dyed Diesel Fuel -- Nontaxable Use Only -- Penalty for Taxable Use -- Off Highway, Not Legal for Motor Vehicle Use” as presently required by the internal revenue service or environmental protection agency. Such display shall remain a requirement until the general assembly, by statute, changes such requirements, notwithstanding either of such federal agencies altering or removing such requirement from its regulations.

(b) The commissioner may assess a civil penalty of one hundred dollars ($100) for each month in violation, or portion of a month, against a person who fails to comply with this section.