Off of the STA-21 website there is a link to check your status. Once everything is updated (last year that was a couple weeks after the msg) it will say when you are to report and for what (BOOST or just NSI). If you don't see anything for a couple weeks, just call the number on the website and ask (don't do it yet, they're REALLY busy and you'll just piss them off). Just speaking for myself, I would have thought not many people would be going through BOOST, especially not Nuc's, but there are actually alot of people here and quite a few nuc's.