[Comment to Athlete: Individuals who participate in sport may fall in one of five categories:  1) International -Level Athlete, 2) National -Level Athlete, 3) individuals who are not International or National -Level Athletes but over whom the Inter national Federation or National  Anti-Doping  Organization has chosen  to exercise  authority,  4) Recreational  Athlete, and 5) individuals over whom no International Federation or National Anti -Doping Organization has, or has chosen to, exercise authority.