2021 IFA Anti -Doping Rules ( October  2020)  Page 7 of 65   2.3 Evading, Refusing or Failing to Submit to Sample Collection by an  Athlete   Evading Sample collection; or refusing or failing to submit to Sample collection without compelling justification after notificat ion by a duly authorized Person .5  2.4 Whereabouts Failures by an  Athlete   Any combination  of three  (3) missed  tests  and/or  filing  failures,  as defined  in the International  Standard  for Results Management , within a twelve -month period by an Athlete in a Regist ered Testing Pool.