I am beginning my last year and can't decide whether or not to take the ISP bonus. My obligation is until the end of August and I planned on taking it because that adds only an extra month to my obligation. Recently, a classmate of mine from residency told me that physicians at his command were receiving orders to detach in October of the following year rather than September. The ISP should obligate me until September 30 and my orders should say detach in September. If they say October they can keep me until 31 October which is what was happening to the physicians at this other command. I spoke with my chain of command and they gave me the typical, "we would let you go October 1 as long as your replacement is here". Does anyone know who writes the final orders and how they determine the month of detachment? Is this the Navy's way of getting yet another month out of me that I don't owe? The bonus is worth the extra month but not two!