Notwithstanding the mandatory nature of this International Standard  and the possibility that departures by Anti-Doping Organizations  may give rise to compliance consequences under the International Standard  f o r  Code  Compliance by Signatories , departures from this International Standard shall not invalidate analytical results or other evidence of an  anti-doping rule violation and shall not constitute a defense to an anti-doping rule violation , except as expressly provided for under Code  Article 3.2.3.