If the Athlete  or other Person  rebuts the preceding presumption by showing that a departure fr om the International Standard  for Laboratories occurred which could reasonably have caused the Adverse Analytical Finding, then UWW  shall have the burden to establish that such departure did not cause the Adverse Analytical Finding.14  3.2.3   Departures from any other International Standard  or other anti -doping rule or policy set forth in the Code or these Anti -Doping Rules shall not invalidate analytical results or other evidence of an anti -doping rule violation, and shall not constitute a def ense to an anti -doping rule violation;15 provided, however, if the Athlete  or other Person establishes that a departure from one of the specific International Standard  provisions listed below could reasonably have caused an anti-doping rule violation based on an Adverse Analytical Finding  or  13  [Comment to Article 3.2.1: For certain Prohibited Substances, WADA may instru ct WADA -accredited laboratories not to report Samples as an Adverse Analytical Finding if the estimated concentration of the Prohibited Substance or its Metabolites or Mar kers is below a Minimum Reporting Level.