Full text
Where fuel other than aviation gasoline has been purchased or imported for a use for which the tax imposed under this Part on diesel fuel or aviation fuel is not payable and the purchaser or importer sells or appropriates the fuel for a purpose for which the fuel could not have been purchased or imported without payment of the tax at the time he purchased or imported it, the tax imposed under this Part on diesel fuel or aviation fuel shall be payable by the person who sells or appropriates the fuel