You should have received the Body Fat worksheet along with the request. If you didn't, let your RC know and he will provide it. I have a copy of it but only the one for a male (can't tell from your screenname which gender you are - sorry!). If you would like a copy of that one, just PM me your email address.
You also should have been informed who was authorized to conduct the test. Per our RC, it has to be a doctor, nurse, Army officer or NCO. He recommended just going to your local recruiting station since they are used to doing these measurements. Good luck!