Which regulation governs the wear and appearance of the Army uniform?

The governing regulation for the wear and appearance of the Army uniform is Army Regulation 670-1. This regulation outlines specific guidelines regarding uniform standards, including authorized uniforms, appearance standards, and how personnel are expected to maintain their uniforms. It ensures a consistent and professional appearance among soldiers, which reflects the discipline and readiness of the Army.

Army Regulation 670-1 specifically addresses a wide range of topics concerning uniform wear, including the proper insignia, headgear, and grooming standards, enabling soldiers to present themselves in a manner that upholds the Army's values and standards. The regulation plays a critical role in fostering unit cohesion and pride by establishing clear expectations for personal appearance.

The other options relate to different aspects of military policy but do not focus specifically on the regulations regarding uniform wear and appearance. For instance, the Department of Defense Instruction involves broader defense policies, while Field Manual 3-21.5 pertains to drill and ceremonies. Army Command Policy AR 600-20 outlines command structure and leadership responsibilities, rather than uniform standards. Hence, Army Regulation 670-1 is the authoritative source for uniform wear and appearance in the Army.