fuel; namely, compressed natural gas used in motor vehicles

construction and repair services; namely, retrofitting and conversion of gasoline and diesel internal combustion engines to allow such engines to operate on compressed natural gas and alternative fuels

education services; namely, conducting training of mechanics in retrofitting and conversion of gasoline and diesel internal combustion engines to allow such engines to operate on compressed natural gas and alternative fuels

miscellaneous services; namely, distributorship services in the field of compressed natural gas used as a motor vehicle fuel