Each International Federation shall ensure, forInternational-Level Athletes or any other Athlete who isWorld Anti-Doping Code 20034..3..3  Comment:  The question of whether asubstance meets the criteria in Article 4.3(Criteria for Including Substances andMethods on the Prohibited List) in aparticular case cannot be raised as adefense to an anti-doping rule violation.For example, it cannot be argued that theProhibited Substance detected would nothave been performance enhancing in thatparticular sport.