FIS Anti -Doping Rules  page  13 Edition January 2021  2.5 Tampering  or Attempted Tampering  with any part of Doping Control  by an Athlete or Other Person   2.6 Possession  of a Prohibited Substance or a Prohibited Method  by an Athlete or Athlete Support Person   2.6.1  Possession  by an Athlete  In-Competition of any  Prohibited Substance or any Prohibited Method , or Possession by an  Athlete Out -of-Competition of any  Prohibited Substance or any Prohibited Method which is prohibited Out-of-Competition  unless the Athlete  establishes that the Possession  is consistent with a Therapeutic Use Exemption  (“ TUE”) granted in a ccordance with Article 4.4  or other acceptable justification.