In the modern United States Navy, a midshipman is classified as an officer of the line, though their exercise of authority is limited by their training status. Legally, midshipmen are a special grade of uncommissioned officer that ranks between the senior noncommissioned enlisted grade (E-9) and the lowest grade of chief warrant officer (W-2, in the U.S. Coast Guard, which does not currently use the grade of warrant officer (W-1)) or warrant officer (W-1), U.S. Army, U.S. Navy, or U.S. Marine Corps.