Indiana Code Title 6. Taxation § 6-6-1.1-303

(1) The permit holder shall sell all gasoline purchased tax free under the exemption permit for the exclusive purpose of propelling the engines or motors of aircraft or motorboats.

(2) The permit holder shall keep for a period of three (3) years, complete records of all gasoline purchased, acquired, stored, used, or disposed of by him.

(3) The permit holder shall provide the administrator with such reports of gasoline purchased, acquired, used, or disposed of as the administrator may require.

(4) The permit holder shall permit the administrator or his authorized agent to examine during regular business hours any of the records of the applicant pertaining to the acquisition, use, and distribution of gasoline and any of the equipment of the applicant used for the receipt, storage, or use of gasoline.

(5) The permit holder shall not purchase gasoline tax free for use in motor vehicles.

(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.