Steps to becoming a Challenger 2 Referee 1. Complete the course located here. Once you have completed watching the videos( the assignments) and taken the quizzes, fill out the form at the end.
2. Make sure to fill out the form before each video so that you are sent your certificate of completion. Don't worry about the clinic number or USSF ID. Do click on "remember me" so that you don't need to fill out the form each time.