6.6 Further Analysis of a Sample After it has been Reported as Negative or has Otherwise not Resulted in an Anti -Doping Rule Violat ion Charge   After a laboratory has reported a Sample as negative, or the Sample has not otherwise resulted  in an anti-doping rule violation charge, it may be stored and subjected to further analyses for the purpose  of Article  6.2 at any time  exclusively  at the direction  of either  the Anti-Doping  Organization   27  [Comment to Article 6.2.1: For example, relevant Doping Control -related information could be used to direct Target Testing or to support an anti -doping rule violation proceeding under Article 2.2, or both.]