Ind. Code § 6-6-1.1-303
(b) An exemption permit is conditioned on the following terms:
(6) The permit holder shall not sell any gasoline acquired tax free under the exemption permit unless it is sold tax free and delivered directly into the fuel supply tank of an aircraft or motorboat.
As added by Acts 1979, P.L.79, SEC.1. Amended by Acts 1980, P.L.51, SEC.16; P.L.97-1987, SEC.2.