I suspect the National Office ain't gonna be answering the phone much for the next couple of weeks--they'll all be in Sacramento. But here's the information I have.
From the letter by Sharon Everson:
The Referee Course will be given at the Summer Nationals to referee candidates on the following dates and times:
Wednesday, July 4, 7:00-10:00 p.m.
Thursday, July 5, 6:00-9:00 p.m.
The specific location for the course will be posted at the USFA registration desk at the competition venue.
===There's a long article on the reverse of the letter by Jon Moss about "How to become a referee" Basically, as far as you're concerned, it says new referees should take the Referee Course, and take the written test from a Certified Referee Instructor (trained by the USFA, and you can ask your division who in your division is one) or an FOC Examiner. If you pass (must score 90% on the General Section and at least 90% on each weapon section) your base rating is 10; a Referee Instructor can give you a 9, and an FOC Examiner can give you higher ratings. A 1 is the highest national rating. A 5 is the lowest national rating.
You should download the Referee Study Guide and the USFA Rule Book from the USFA web site (click "Info for Members" and then "Forms")and find the answers to the study guide in the rule book before you take the test.
===There's some stuff on the FOC website which is at
http://foc.usfencing.org on "How to become a referee."
I recommend that if you take the Referee Course you make sure you take it from someone who really knows their stuff. I've taken it a couple of times (after I earned my 5, actually, because I just like learning stuff) and know of another one being offered in my division, and frankly it really matters who gives it--it should be an active national referee if at all possible. Charlie Washburn gave a really good one in our division, and Charlie's one of the best.