Does my active duty for training (ADT) count towards retirement or pay grade?
The time that you spend in school, as well as your active duty training time does not count towards your retirement or your pay grade (i.e. time in service). When you graduate from veterinary school, you will enter active duty as a captain (O-3) with zero years time in service. However, the time that you spend at your active duty training site does fulfill your HPSP active duty for training (ADT) obligation (see Chapter 4 of the HPSP Handbook for further details).