After selection to the warrant officer program, candidates attend Warrant Officer Candidate School (WOCS), which is developed and administered by the Warrant Officer Career College (USAWOCC) at Fort Rucker, Alabama. Army candidates on active duty must attend the course at Fort Rucker. Candidates in the United States National Guard attend the course either at Fort Rucker, or one of the National Guard's Regional Training Institutes. After graduation, all candidates are promoted to warrant officers (WO1). Technicians attend training at their respective branch's warrant officer basic course (WOBC), where they study advanced subjects in their technical area before moving on to their assignments in the Army. Aviation-branched warrant officers remain at Fort Rucker to complete flight training and the aviation WOBC.