17-A M.R.S. §1052: Right to possess, carry or transport machine gun

Any law enforcement officer of the State of Maine, any law enforcement officer of another state or a territory of the United States, members of the Armed Forces, Maine National Guard and Maine State Guard may possess a machine gun if the possession or carrying of such weapon is in the discharge of his official duties and has been authorized by his appointing authority.

Machine guns manufactured, acquired, transferred or possessed in accordance with the National Firearms Act, as amended, shall be exempt from this chapter.