IWWF Anti -Doping Rules 2021   Page 14 of 88 Pages  provide notice to the Athlete  of the B Sample  opening which could reasonably have caused an anti -doping rule violation based on an Adverse Analytical Findi ng, in which case IWWF shall have the burden to establish that such departure did not cause the Adverse Analytical Finding ;16  (iv) a departure from the International Standard  for Results Management  related to Athlete  notification which could reasonably hav e caused an anti -doping rule violation based on a whereabouts failure, in which case IWWF shall have the burden to establish that such departure did not cause the whereabouts failure.