Thinking about going since it is close to me. Been in CAP for a few months now. What is the UOD for the convention? Didn't see anything about it on the website.
Anything you want that's not a field uniform. You'll see people in polos and you'll see people excited to show off their full regalia (and everything in between).
If you're close by and don't have to spend a ton of money on travel and lodging, I think you'll find the conference worthwhile.
Whites, Blues, Golf Shirt, civilian dress, no flight suits or fields uniforms.