The Posse Comitatus Act applies to the army, navy, marines, air force, coast guard, and state national guard forces, but only when they are called to active duty.

Question

Quizplus · Accepted Answer

The Posse Comitatus Act primarily applies to the Army and Air Force, and through Department of Defense regulations, its principles have been extended to the Navy and Marine Corps. The Coast Guard, under the Department of Homeland Security, is exempt when operating under its traditional maritime law enforcement functions, and the National Guard operates under state authority unless federalized.

The Posse Comitatus Act Applies to the Army, Navy, Marines