B.1.3 For purposes of determining whether a Whereabouts Failure has o ccurred within the 12-month period referred to in Code  Article 2.4: a) A Filing Failure will be deemed to have occurred (i) where t he Athlete  fails to provide complete information in due time in advance of an upcoming quar ter, on the first day of that quarter, and (ii) where any information provided by the Athlete  (whether in advance of the quarter or by way of update) transpires to be inaccurate , on the (first) date on which such information can be shown to be inaccurate; and  b) A Missed Test will be deemed to have occurred on the date th at the Sample  collection was unsuccessfully attempted.