B.2.4 An Athlete may only be declared to have committed a Missed Test where the Results Management  Authority can establish each of the following: a) That when the Athlete was given notice that they had been designated for inclusion in  a Registered Testing Pool , they were advised that they would be liable for a Missed Test  if they were unavailable for Testing during the  60-minute time slot specified in their Whereabouts Filing at the location specified for that time slot ; b) That a DCO attempted to test the Athlete on a given day in the quarter, during the 60-minute time slot specified in the Athlete’s Whereabouts Filing for that day, by visiting the location specified for that time slot; c) That during that specified 60- minute time slot, the DCO did what was reasonable in the circumstances (i.e.