The process of opening and splitting the Sample  and resealing of the remaining second fraction shall be conducted in accordance with Article  5.3.6.2.3 as for a customary “B” Sample  opening, including an attempt to notify the Athlete  that the opening of the Sample  to be split will occur on a specified date and time  and advising the Athlete  of the opportunity to observe the process in person and/or through a representative .