The Air Force Reserve Officer Training Corps (AFROTC) functions as the Office of Aerospace Studies. It selects, trains, and commissions college men and women as officers in the US Air Force. AFROTC offers a four-year and a two-year curriculum leading to a commission as a second lieutenant. The four-year program consists of both the General Military Course (GMC), a course sequence taken during the freshman and sophomore years, and the Professional Officer Course (POC), taken during the junior and senior years. Entry into the POC is competitive and requires successful completion of a field-training encampment during the summer between the sophomore and junior years.