Shoulder Sleeve Insignia

Description
On a brick red shield 2 inches (5.08 cm) in width and 2 inches (5.08 cm) in height overall and within a 1/8 inch (.32 cm) yellow border a yellow annulet and trident interlaced.

Symbolism
Brick red and yellow are the colors used for Transportation. The wheel, a symbol for movement and the trident, an attribute of Poseidon (God of the Sea in Greek mythology) allude to the mission of the organization in the movement of vital cargo across land and waterway.

Background
The shoulder sleeve insignia was originally approved for the 4th Transportation Command on 28 June 1967. It was redesignated for the 4th Transportation Brigade on 13 May 1975. The insignia was redesignated effective 16 February 1981, for the 4th Transportation Command. (TIOH Drawing Number A-1-461)