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 F IL 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 whereabouts failure, then F IL shall have the burden to establish that such departure did not cause the Adverse Analytical Finding or the whereabouts failure:   (i)  a departure from the International Standard  for Testing  and Investigations related to Sample  collection or Sample  handling which could reasonably have caused an anti -doping rule violation based on an Adverse Analytical Finding , in which case FIL shall have the  13  [Comment to Article 3.2.1: For certain Prohibited Substances, WADA may instruct 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.