1. The operation by a manufacturer, factory branch, distributor, distributor branch, or subsidiary thereof, of a dealership for a temporary period, not to exceed one year, during the transition from one owner or operator to another;

2. The ownership or control of a dealership by a manufacturer, factory branch, distributor, distributor branch, or subsidiary thereof, while the dealership is being sold under a bona fide contract or purchase option to the operator of the dealership;

3. The ownership, operation, or control of a dealership by a manufacturer, factory branch, distributor, distributor branch, or subsidiary thereof, if the manufacturer, factory branch, distributor, distributor branch, or subsidiary has been engaged in the retail sale of motor vehicles through the dealership for a continuous period of three years prior to July 1, 1972, and if the Commissioner determines, after a hearing on the matter at the request of any party, that there is no dealer independent of the manufacturer or distributor, factory branch or distributor branch, or subsidiary thereof available in the community to own and operate the franchise in a manner consistent with the public interest;

4. The ownership, operation, or control of a dealership by a manufacturer, factory branch, distributor, distributor branch, or subsidiary thereof if the Commissioner determines, after a hearing at the request of any party, that there is no dealer independent of the manufacturer or distributor, factory branch or distributor branch, or subsidiary thereof available in the community or trade area to own and operate the franchise in a manner consistent with the public interest;

5. The ownership, operation, or control of a dealership dealing exclusively with school buses by a school bus manufacturer or school bus parts manufacturer or a person who assembles school buses; or

6. The ownership, operation, or control of a dealership dealing exclusively with refined fuels truck tanks by a manufacturer of refined fuels truck tanks or by a person who assembles refined fuels truck tanks. Notwithstanding any contrary provision of this chapter, any manufacturer of fire-fighting equipment who, on or before December 31, 2004, had requested a hearing before the Department or the Commissioner in accordance with subdivision 4 for licensure as a dealer in fire-fighting equipment and/or ambulances may be licensed as a dealer in fire-fighting equipment and/or ambulances.