The original announcement
, linked in the prize post I made above, describes this, but you do have to read down a bit.
The competition is open to anyone who can legally ship beer in the USA. There are three divisions, each of which will be happy to have volunteers!
Hoppy Beers - Fresno, California
Malty Beers - Chicago, Illinois
Balanced Beers - Austin, Texas
The competition entry form will have a section to allow those interested in judging, stewarding, or simply volunteering, to do so.