The Naval Service Training Command (NSTC) is a one-star echelon III command of the United States Navy that is responsible to the Chief of Naval Education and Training for the indoctrination and training of all new accessions into the Naval Service, with the exception of Midshipmen who access through the United States Naval Academy. This includes all new recruits through Recruit Training Command, the Navy's only enlisted recruit training location and all Officer "Candidates" who are seeking a commission through the Officer Training Command at Naval Station Newport, Rhode Island. Also under its purview is the operation of the various Naval Reserve Officers Training Corps (NROTC) units in universities across the country. The current NSTC is Rear Admiral Craig T. Mattingly.

The Recruit Training Command, Great Lakes, is a command unit within the United States Navy primarily responsible for conducting the initial orientation and indoctrination of incoming recruits, also known as boot camp and recruit training, or RTC. It is part of Naval Service Training Command. It is a tenant command of Naval Station Great Lakes in the city of North Chicago, Illinois, in Lake County, north of Chicago.