Authorised 24 February 1941
A Silver color metal and enamel device 1 3/64 inches (2.66 cm) in height consisting of a shield blazoned: Per bend Argent and Gules.
The shield is divided per bend, red and silver (white), the colors of the Corps of Engineers.
The distinctive unit insignia was originally approved for the 15th Engineer Battalion (Separate) on 24 February 1941. It was redesignated for the 15th Engineer Battalion (Combat) on 7 July 1954. Coat of Arms