This document, Army Regulation AR 670-1 Wear and Appearance of Army Uniforms and Insignia April 2015, 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 U.S. Army Reserve, as well as by former Soldiers. It 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.