A working guide to youth and amateur sports law for counsel advising a league, a school, a governing body, or an injured participant. Part one maps the sources of law and the actors; part two covers the concussion statutes, the removal and clearance duties they impose, and the negligence per se exposure they create. Part three covers pre-injury waivers, parental waivers of a minor's claim, and assumption of risk, and part four covers volunteer immunity under federal and state law and its substantial limits. Part five covers screening, mandated reporting, abuse prevention, and institutional liability. Part six covers athletic association governance, state action, eligibility and transfer rules, and hardship waivers, and part seven covers Title IX, disability participation, and drug testing. Part eight covers the Olympic and amateur sports framework, safe sport, and amateurism antitrust. Part nine covers insurance, entity structure, and claim handling.