Per bend enhanced Argent and Tenné on the first palewise in bend six Lorraine Crosses and on the second palewise in bend three fire arrows all counterchanged.
On a wreath of the colors Argent and Tenné, a Spanish castle Argent charged with a fleur-de-lis Tenné.
TO PARON EY POIEIN (Do Well The Duty That Lies Before You).
The colors orange and white are for the Signal Corps. The six Lorraine crosses represent six World War I Battle Honors and are arranged to suggest a telegraph line. The three fire arrows symbolize three assault landings in World War II and also suggest the Signal functions which such weapons once served.
The Spanish castle taken from the Spanish Campaign Medal symbolizes the organization's service in Puerto Rico during the Spanish American War and the fleur-de-lis its service in World War I. The colors white (silver) and orange are the colors of the Signal Corps.
The coat of arms was approved on 8 January 1958.