750.231a Exceptions to MCL 750.227(2); "antique firearm" defined.
Sec. 231a.
(1) Subsection (2) of section 227 does not apply to any of the following:
(a) To a person holding a valid license to carry a pistol concealed upon his or her person issued by his or her state of residence except where the pistol is carried in nonconformance with a restriction appearing on the license.
(b) To the regular and ordinary transportation of pistols as merchandise by an authorized agent of a person licensed to manufacture firearms.
(c) To a person carrying an antique firearm, completely unloaded in a closed case or container designed for the storage of firearms in the trunk of a vehicle.
(d) To a person while transporting a pistol for a lawful purpose that is licensed by the owner or occupant of the motor vehicle in compliance with section 2 of 1927 PA 372, MCL 28.422, and the pistol is unloaded in a closed case designed for the storage of firearms in the trunk of the vehicle.
(e) To a person while transporting a pistol for a lawful purpose that is licensed by the owner or occupant of the motor vehicle in compliance with section 2 of 1927 PA 372, MCL 28.422, and the pistol is unloaded in a closed case designed for the storage of firearms in a vehicle that does not have a trunk and is not readily accessible to the occupants of the vehicle.