This regulation prescribes Department of the Army policy for proper wear and appearance of Army uniforms and insignia, as worn by officers and enlisted personnel of the active Army and the U.S. Army Reserve, as well as by former Soldiers. Applicability. This regulation applies to the active Army, the Army National Guard/Army National Guard of the United States, and the U.S. Army Reserve, unless otherwise stated. Also, it applies to the Reserve Officers' Training Corps and the Corps of Cadets, United States Military Academy, only when their respective uniform regulations do not include sufficient guidance or instruction.