However, pre-Code anti-doping rule violations would continue to count as “First violations” or “Second violations” for purposes of determining sanctions under Article 10 for subsequent post-Code violations.26.7  The Purpose, Scope and Organization of the World Anti-Doping Program and the Code and Appendix 1, Definitions, shall be considered integral parts of the Code.ARTICLE 27 TRANSITIONAL PROVISIONS27.1 General Application of the 2021 CodeThe 2021 Code shall apply in full as of 1 January 2021 (the “Effective Date”).ARTICLE 25  Modification and Withdrawal ARTICLE 26  Interpretation of the CodeARTICLE 27  Transitional ProvisionsWorld Anti-Doping Code 2021160Acceptance, Compliance,Modification and Interpretation4   PART27.2 Non-Retroactive except for Articles 10.9.4 and 17 or Unless Principle of “Lex Mitior” AppliesAny anti-doping rule violation case which is pending as of the Effective Date and any anti-doping rule violation case brought after the Effective Date based on an anti-doping rule violation which occurred prior to the Effective Date shall be governed by the substantive anti-doping rules in effect at the time the alleged anti-doping rule violation occurred, and not by the substantive anti-doping rules set out in this 2021 Code, unless the panel hearing the case determines the principle of “lex mitior” appropriately applies under the circumstances of the case.