From my understanding most programs require that you send in your prints regardless if you are sending in a DO or not, so schedule to do them promptly. The Austin BON will start a file on you when you complete the prints or when they receive your DO, whichever is first. Once they have both your prints/fbi criminal history and your DO they will have all they need to make a judgement within 30 days, or send you a letter letting you know they need further review and consequently $150 from you.