Description
On a brick red disc 2 1/4 inches (5.72 cm) in diameter overall four green leaves surmounted at the center by a white quatrefoil, two points up, all within a 1/8 inch (.32 cm) yellow border.

Symbolism
Brick red is the color used for Transportation, the original unit designation. The white quatrefoil and the green leaves simulate a magnolia and refer to Mississippi, “The Magnolia State,” headquarters of the organization. The yellow outer band symbolizes a wheel and refers to transportation, the former mission of the unit.

Background
The shoulder sleeve insignia was originally approved for the 184th Transportation Command on 2 January 1969. It was redesignated for the 184th Transportation Brigade on 30 March 1972. The insignia was redesignated effective 1 September 2006, for the 184th Support Command with the description and symbolism updated. It was amended to correct the unit designation to 184th Sustainment Command on 28 July 2011. (TIOH Dwg. No. A-1-511)