AIOH meaning in Governmental ?

The Institute of Heraldry, officially The Institute of Heraldry, U.S. Army, is an activity of the Administrative Assistant to the Secretary of the Army solely responsible for furnishing heraldic services to President of the United States and all Federal Government agencies. 18 U.S.C. § 704 and (32 CFR, Part 507) permit the institute to issue directives on how military insignia are displayed, the criteria for issuance, and how insignia will be worn on military uniforms.

The activities of The Institute of Heraldry encompass research, design, development, standardization, quality control, and other services relating to official symbolic items—seals, decorations, medals, insignia, badges, flags, and other items awarded to or authorized for official wear or display by federal government personnel and agencies. Limited research and information services concerning official symbolic items are also provided to the general public. The Institute of Heraldry is located at 9325 Gunston Road, Fort Belvoir, Virginia, a military installation in the U.S. Army Military District of Washington. The institute employees 22 DA civilians.