Shield: Azure a saltire Argent charged with pyrotechnic projectors of the first, overall a mullet of four points Tenné fimbriated of the second.

Crest: On a wreath of the colors Argent and Azure issuant from the battlements of a tower Proper a fleur-de-lis Or between two griffin heads respectant Gules beaked Or.

The four-pointed star refers to the four battle honors awarded for service in World War II and also symbolizes intelligence, reconnaissance, communications and signal, vital functions of the battalion.

The tower and fleur-de-lis commemorate the unit's World War II service in Northern Europe.

Background: The coat of arms was originally approved for the 305th Army Security Agency Battalion on 27 September 1957.