My son was notified of the award offer yesterday, he was/is thrilled, having worked so hard and getting the offer has been a very gratifying experience for him, and of course for us. Now that his path forward is clearer, he/we has also come to the realization that the environmental engineering major (Tier 2/high) he selected is not available at the one in-state AFROTC school we have ,and changing to civil engineering or any other Tier 2/high is more math intensive than he's comfortable with, and makes my wife (a college professor) very uncomfortable. (we realize environ. engineering is math intensive as well) Here's my questions. Having been offered the Type 7, tech which was based on a Tier 2 high/tech major, is it possible to change to a Tier 3/moderate tech without it effecting his offer? Is this a question for AFROTC HQ or the detachment he selects? Are there typically a cap on the number of detachment slots? Better to decide early to guarantee a slot in at the desired detachment? Thank you for your time.