2021 IFA Anti -Doping Rules ( October  2020)  Page 13 of 65   category (e.g., anabolic agents) or by spe cific reference to a particular substance or method.17  4.2.2  Specified Substances or Specified  Methods   For purposes of the application of Article 10, all Prohibited Substances shall be Specified Substances except as identified on the Prohibited List.