[Comment to 8.1 and 8.2: Unless the rules of an International Federation provide otherwise, an Athlet e who already has a TUE  from a National Anti-Doping Organization, but later becomes a member of the International Federation’s Registered Testing Pool or seeks to participate in an International Event which the International Federation has identified as re quiring an International Federation TUE, shall obtain a new TUE  from the International Federation.