]IWF 2021 ANTI-DOPING RULES   / 174.4.7.3  A decision by WADA  to reverse a TUE decision may be appealed by the Athlete , the National Anti-Doping Organization  and/or IWF, exclusively to CAS.4.4.7.4  A failure to render a decision within a reasonable time on a properly submitted application for grant/recognition of a TUE or for review of a TUE decision shall be considered a denial of the application thus triggering the applicable rights of review/appeal.ARTICLE 5TESTING  AND INVESTIGATIONS5.1 Purpose of Testing  and Investigations24 5.1.1  Testing  and investigations may be undertaken for any anti-doping purpose.