NSTC is headquartered in historic Building 1 (the "clock tower building") at Naval Station Great Lakes. Naval Station Great Lakes is a large and busy place. More than 25,000 military and civilian personnel work, train and live here. Its training commands and schools proudly graduate thousands of recruits and Sailors every year.
The base is nearly 100 years old. It, along with the mission here, has been in constant change, allowing the Navy to prepare Sailors for an increasingly sophisticated and technology-based Navy.