SSC is always looking for referees. Referees must be at least Grade 8 certified by United States Soccer Federation; the club can help you gain certification, training programs are usually held at least twice a year. Upcoming classes can be found at http://www.d2sra.org/train/instruct_entry.lasso.
Licensed referees must be in uniform and wear badge (regardless of age). Referees (center and assistants) should report at the field no later than 20 minutes before the game, dress in the standard referee uniform, and bring the appropriate equipment (license badge, rule book, pen, flags, etc.).