6.6  Further Analysis of a Sample  After it has been Reported as Negative or has Otherwise not Resulted i n an Anti -Dopin g Rule Violation 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 that initiated and directed Sample  collection or WADA .