Marine Corps Recruiting is responsible for military recruitment of civilians into the Corps. It is also responsible for preparing them for United States Marine Corps Recruit Training, Officer Candidates School or the United States Naval Academy. All potential recruits are screened by recruiters for physical standards and fitness, adequate education, lack of significant civil convictions, lack of significant drug use and other qualifiers. The Armed Services Vocational Aptitude Battery is administered to determine qualifications for a job field known as a Military Occupational Specialty.