|Type||United States Navy Training Command|
|Campus||Naval Submarine Base New London|
|Website||Basic Enlisted Submarine School|
Basic Enlisted Submarine School (BESS) is the U.S. Navy's submarine training school for enlisted sailors. Located on Naval Submarine Base New London (NAVSUBASE NLON) in Groton, New London County, Connecticut, the school is an eight-week introduction to the basic theory, construction and operation of nuclear-powered submarines. The course includes instruction on shipboard organization, submarine safety and escape procedures. This program requires passing a physical and mental screening. As of 2015[update], BESS is open to female sailors, including current sailors who wish to join the submarine force by completing the two-month program.
The Navy operates three high risk trainers at New London that sub school classes attend in random order. They are: