- Authorization of non -Laboratory  Persons to attend the “B” Confirmation Procedure  The following non -Laboratory  Persons  shall be authorized to attend the “B” Confirmation Procedure : o The Athlete and/or representative (s) of the Athlete  or, in the absence of the Athlete and/or representative (s), an Independent Witness : • The Athlete  and a maximum of two (2) representatives , and/or the Independent Witness , have the right to attend the “B” Sample opening, aliquoting and resealing procedures ;  • The Athlete  and/or one (1) representative  may also have reasonable opportunity to observe other steps of the “B” Confirm ation Procedure , as long as their presence in the Laboratory  does not interfere with the Laboratory ’s routine operations or Laboratory  safety  or security requirements .