One Station Unit Training

One Station Unit Training (OSUT) is a U.S. Army program where recruits remain with the same unit for both Basic Combat Training (BCT) and Advanced Individual Training (AIT), without relocating between phases Wikipedia. This model was first implemented in 1974 and is used for certain Military Occupational Specialties (MOS) such as Infantry (11B, 11C), Combat Engineer (12B), Bridge Crew (12C), M1 Abrams Crew (19K), Cavalry Scout (19D), and Military Police (31B). How OSUT Works; No relocation: After BCT, the unit seamlessly transitions into AIT. Same Drill Sergeants: The same instructors who trained recruits in BCT continue through AIT, fostering continuity and camaraderie. Streamlined training: This reduces administrative changes and keeps trainees together for the full training pipeline. Infantry OSUT: Traditionally 14 weeks, but the Army has expanded it to 22 weeks to improve lethality and readiness. Extended training includes more weapons qualification time, marksmanship, physical training, land navigation, combat lifesaver skills, and small-unit leadership roles. Other combat arms (armor, cavalry) are expected to adopt similar extended models.