 Admiral Moreell took the question personally to the Secretary of the Navy, Frank Knox, who, on 19 March 1942, gave authority for officers of the Civil Engineer Corps to exercise military authority over all officers and enlisted men assigned to construction units otherwise known as the Seabees.For those engineers assigned to the Seabees a silver Seabee was mounted to the center of the CEC crossed oak leaves insignia.The Seabee logo incorporated the CEC insignia, with one on each arm of the Seabee, just above each glove.