|Shoulder Sleeve Insignia|
| 03 December 1918 (Adjutant General, AEF);|
17 June 1922 (War Department)
| On a black disc 2 1/4 inches (5.72 cm) in diameter, a white circle|
2 inches (5.08 cm) in diameter and 1/4 inch (.64 cm) in width.
| A white circle was used as a corps badge by an organization|
designated I Corps during the Civil War. The white circle was
selected as the identifying device for the current I Corps.
|Distinctive Unit Insignia|
|[[File:||08 June 1942|| one a blue disc with white star, a white Ionic column rising from|
a white pediment and a motto scroll with "Aspire."
|[[File:||21 May 1970|| On a hexagon elongated vertically and divided by a wavy black|
diagonal band with ten silver stars, between dark blue at the top
with a yellow fleur-de-lis and a white star and a light blue area in
base bearing a Korean Taeguk.
|14 September 1982|
|31 October 1988|| A gold color metal and enamel device 1 1/8 inches (2.86 cm)|
in height overall consisting of an ultramarine blue volcano
discharging a silver gray and red cloud of smoke and lava,
superimposed by a gold "I", all upon a black annulet enclosing
a white annulet with a central black disc; crossing the
base is a gold scroll inscribed "AMERICA'S CORPS" in black letters.
|Combat Service Identification Badge|