There shall be exempt from the taxes and fees imposed in part 2 of this chapter, with the exception of the export tax imposed by § 67-3-205, taxable petroleum products:
provided, that the supplier shall be licensed to remit tax to such destination state, and that the supplier shall maintain for inspection by the department satisfactory proof of export in the form of a terminal-issued, destination state shipping paper.
T.C.A. § 67-3-405