The Rule of Two states that there will always be two NCCP (certified) coaches with an athlete, especially a minor athlete, when in a potentially vulnerable situation.
This means that any one-on-one interaction between a coach and an athlete must take place within earshot and view of the second coach, with the exception of medical emergencies.
One of the coaches must also be of the same gender as the athlete. Should there be a circumstance where a second NCCP coach is not available, a volunteer, parent, or adult can be recruited. …
Vulnerable situations can include closed door meetings, travel, and training environments amongst others. …
Gymnastics Coaching.com 