Insignia Description
A silver color metal and enamel device 1 1.8 inches (2.86cm) in height overall consisting of a shield blazoned: Azure (Teal Blue), a fess checky Argent and Tenné, overall a mullet of six points of the second. Attached below around the sides and bottom of the shield a Silver scroll inscribed "SAVIOR C'EST POUVOIR" in Black.

Symbolism
Teal blue and white are the colors used for units not assigned to a branch and refer to the original unit designation, the 313th Army Security Agency Battalion. The colors orange and white refer to the organization's former affiliation with the Signal Corps and the six points of the mullet allude to the battalion's decorations for World War II and Vietnam service.

History
The distinctive unit insignia was originally approved for the 313th Army Security Agency Battalion on 11 Apr 1957. It was redesignated for the 313th Military Intelligence Battalion (CEWI) and amended to change the color of the shield and revise symbolism on 30 May 1980. On 21 Dec 2000, the insignia was amended to change the color of the shield, revise the symbolism and update the description.

Source: The US Army Institute of Heraldry