NFESC meaning in Academic & Science ?

The Naval Facilities Engineering Systems Command (NAVFAC) is the United States Navy's engineering systems command, providing the Navy and United States Marine Corps with facilities and expeditionary expertise. NAVFAC is headquartered at the Washington Navy Yard and is under the command of the Chief of Civil Engineers RADM John W. Korka

The Naval Facilities Engineering Systems Command is the oldest of the Navy's system commands, having been established as the Bureau of Yards and Docks in August 1842. Its officers comprise the Navy Civil Engineer Corps, which was formed in March 1867. During the 1966 reorganization of the Department of the Navy, the Bureau of Yards and Docks became the Naval Facilities Engineering Command. In October 2020, the name changed to the current Naval Facilities Engineering Systems Command.