The substanceswhich are prohibited at all times144.3.3WADA’s determination of the ProhibitedSubstances and Prohibited Methods that will beincluded on the Prohibited List shall be final andshall not be subject to challenge by an Athlete orother Person based on an argument that thesubstance or method was not a masking agent ordid not have the potential to enhance performance,represent a health risk, or violate the spirit of sport.4.4 Therapeutic UseWADA shall adopt an International Standard for theprocess of granting therapeutic use exemptions.