- AR 15-6Publication
Procedures for Preliminary Inquiries, Administrative Investigations, and Boards of Officers
AR 15-6 governs preliminary inquiries, administrative investigations, and boards of officers -- the process behind almost every commander-directed investigation. The 2025 revision reorganized the procedures and added the preliminary inquiry to the title. If you are appointed as an investigating officer, read it before you interview anyone.
- TC 7-22.7Publication
The Noncommissioned Officer Guide
TC 7-22.7 is the NCO guide: the duties, responsibilities, and authority of noncommissioned officers, the NCO support channel, and the expectations at each grade. The August 2025 edition supersedes the January 2020 guide. It is required reading for anyone going before a promotion board.
- AR 600-20Publication
Army Command Policy
AR 600-20 is the command policy regulation: chain of command, military discipline and conduct, prohibited relationships, equal opportunity, harassment prevention and response, and the commander's authority over Soldiers. It is the single regulation most often cited at boards and in adverse actions. It is revised frequently -- verify the current edition before quoting a paragraph.