The Engineer Basic Officer Leader Course Phase B (EBOLC) is located at the United States Army Engineer School in Fort Leonard Wood, Missouri, and is approximately nineteen weeks long and the second part of the Basic Officer Leaders Course. Once an Army Officer has been commissioned and selected for the Corps of Engineers, he or she is sent to Engineer School to learn combat engineering, general engineering, and geospatial engineering. With few exceptions, attendees will be the rank of Second Lieutenant who have recently commissioned (fulfilling BOLC-A requirements). While attending, the officer will become a part of B Company, 554th Engineer Battalion, 1st Engineer Brigade receiving instruction from the U.S. Army Maneuver Support Center of Excellence (MSCoE).