4.4.5  Retroactive TUE Applications   If IFA chooses  to collect  a Sample  from  an Athlete  who is not an International -Level  Athlete or a National -Level  Athlete , and that Athlete  is Using  a Prohibited  Substance  or Prohibited Method  for therapeutic  reasons,  IFA must  permit  that Athlete  to apply  for a retroactive  TUE.