OSUT Definition

When I say my son is in OSUT, it brings on blank stares...so I end up explaining this a lot. His MOS is not one that consists of a typical 9 week Basic Training period, it's a little different. He goes to "BCT" for 10 weeks, gets a short break (1-3 days, depending on many factors) that he takes within 50 miles of his base, and follows the rules given to him as if his life depends on it, then goes back to the same place and finishes his training with six weeks of Advanced Individual Training.

Here is a description of what OSUT is according to WikiPedia.com

• One Station Unit Training

With some MOSs, both the BCT and AIT phases of training are accomplished back-to-back at the same location, with the same instructors, as well as with the same fellow recruits. This is called One Station Unit Training, or OSUT. For example, the Infantry MOS consists of the usual ten weeks of BCT followed by six weeks of AIT, all within the same location. A similar program is followed for cavalry scouts, tank crewmen, field artillery cannon crewmen, military police, combat engineers, and chemical operations (defensive) specialists.