Official Information, Lessons, and Practice Exams from the United States Navy
What is BESS?
Basic Enlisted Submarine School (BESS) is an 8-week introduction to the basic theory, construction and operation of nuclear-powered submarines.
United States Navy ratings are general enlisted occupations that consist of specific skills and abilities.
Types of Submarines
There are two major types of submarines in the United States Navy: Ballistic Missile Submarines and attack Submarines.