ISA 2021 Anti -Doping Rules  Page 14 of 67    Specified Method unless it is specifically identified as a Specified Method on the Prohibited List.19  4.2.3  Substances of Abuse   For purposes of applying Article 10, Substances of Abuse shall incl ude those Prohibited Substances  which are specifically identified as Substances of Abuse on the Prohibited List  because they are frequently abused in society outside of the context of sport.