The 2021 Code shall have no application to any anti-doping rule violation case where a final decision finding an anti-doping rule violation has been rendered and the period of Ineligibility has expired.ARTICLE 27  Transitional ProvisionsWorld Anti-Doping Code 2021161ARTICLE 27  Transitional Provisions27.4 Multiple Violations Where the First Violation Occurs Prior to 1 January 2021For purposes of assessing the period of Ineligibility for a second violation under Article 10.9.1, where the sanction for the first violation was determined based on pre-2021 Code rules, the period of Ineligibility which would have been assessed for that first violation had 2021 Code rules been applicable, shall be applied.12027.5 Additional Code AmendmentsAny additional Code amendments shall go into effect as provided in Article 27.1.27.6 Changes to the Prohibited ListChanges to the Prohibited List and Technical Documents relating to substances or methods on the Prohibited List shall not, unless they specifically provide otherwise, be applied retroactively.