Great question. Every so often, we offer a class here in AZ called a CBJ Class (Certified BBQ Judge) Class. Typically it's held the night before a competition.
We just held one this past November. Havasu is holding one in February and still have a few spots open. Or you can look at the KCBS web site and see when and where the next ones are and take a mini vacation and attend one of those.
www.KCBS.us Once you take the class and become certified, then you just find an event that you would like to judge at, contact the promoter and submit your name for consideration.
It is a great job to have a these cook-offs.
I look forward to seeing you out at the events judging.
Good Luck!!
Mike