IWF 2021 ANTI-DOPING RULES   / 72.1.3  Excepting those substances for which a Decision Limit  is specifically identified in the Prohibited List  or a Technical Document , the presence of any reported quantity of a Prohibited Substance  or its Metabolites  or Markers  in an Athlete’s Sample  shall constitute an anti-doping rule violation.2.1.4  As an exception to the general rule of Article 2.1, the Prohibited List , International Standards  or Technical Documents  may establish special criteria for reporting or the evaluation of certain Prohibited Substances .2.2 Use or Attempted Use  by an Athlete  of a Prohibited Substance  or a Prohibited Method42.2.1  It is the Athletes’  personal duty to ensure that no Prohibited Substance   enters their bodies and that no Prohibited Method  is Used .