Tennessee Code Title 67. Taxes and Licenses § 67-6-528

(a) Common carriers seeking to make purchases subject to the reduced rate provided in part 2 of this chapter shall apply to the commissioner for a certificate. This application shall be made upon forms provided by the commissioner and shall require information deemed necessary by the commissioner to establish that the applicant is a common carrier making purchases of tangible personal property for use outside this state. The certificate may be revoked by the commissioner at any time, if the commissioner finds that the holder no longer meets the conditions precedent for the reduced rate.

(b) Common carriers making purchases subject to the reduced rate provided in part 2 of this chapter shall keep records of all such purchases, establishing to the satisfaction of the commissioner that items purchased were not used in Tennessee, but were removed from this state for use and consumption outside this state.