(1) Provided, however, that gasoline, as defined in Section 75-55-5, shall not be subject to specifications required under such section, when such gasoline is purchased or received in this state for uses other than for sale or distribution to the consuming public. This exemption shall apply to gasoline that will not be used on the road.
(2) The Commissioner of Agriculture and Commerce (the “commissioner”) and the State Chemist shall have authority, but are not compelled, to establish specifications for aviation and other special gasolines when received in this state for any purpose other than for use in propelling motor vehicles on the highways, or for sale or distribution to the consuming public.
(3) It is provided that the specifications adopted for gasoline shall not apply to “gas machine gasoline” prepared or received in this state for use in industrial equipment, when such gasoline is not used or not capable of use in propelling motor vehicles on the highways.
(4) The commissioner and the State Chemist shall have authority but they are not compelled to establish specifications for fuel oils and oil for other engines.