Your school board must validate / certify / approve of ALL coaches who interact with any of your team members, even during practices, not just during tournaments or meets. Only certified coaches and team members are supposed to interact with team members officially. Clearly parents could observe a practice from a distance since you can't keep parents away from their kids. Although we now live in a culture where parent/child restraining orders are something else schools need to track and follow.
How long does it take to get a coach certified for your school? There are about 6 weeks left before the season starts.