United States Marine Corps Recruit Training (commonly known as "boot camp") is a 13-week program, including in & out-processing, of recruit training that each recruit must successfully complete in order to serve in the United States Marine Corps.
Most enlisted individuals entering the Marine Corps, regardless of eventual active or reserve duty status, will undergo recruit training at one of the two Marine Corps Recruit Depots (MCRD): Parris Island, South Carolina or San Diego, California. Male recruits from the 8th, 9th and 12th recruiting districts (areas west of the Mississippi River except Louisiana and including parts of Illinois, Indiana, Wisconsin and Michigan) are sent to MCRD San Diego. All recruits from the 1st, 4th and 6th recruiting districts and, until 2021, all female recruits were sent to Parris Island. Those desiring to become officers attend training at Officer Candidates School at Marine Corps Base Quantico in Virginia.
The only Marine Corps recruits not required to undergo training are those selected for the United States Marine Band. Upon passing an audition and satisfying security and physical fitness requirements, they are granted the rank of Staff Sergeant and assigned exclusively to the band for a four-year enlistment.