The mission of MATSS-1 is to provide administrative support for permanent personnel assigned to MATSS-1 and entry-level training for Marine Corps student personnel assigned to the Aviation Operations Specialist (AOS) Course, Marine Aviation Supply Specialist (MASS) Course, Aviation Maintenance Data Specialist (AMDS) Course, and the Individual Material Readiness List (IMRL) Asset Managers Specialist (IAMS) Course at Naval Air Station (NAS) Meridian, Mississippi.