5.5.5  An Athlete in the IBU RTP will continue to be subject to the obligation to comply with the wherea-bouts requirements set out in the International Standard for Testing and Investigations unless and until (a) the Athlete gives written notice to the IBU/BIU of their retirement; or (b) the BIU has informed the Athlete that they are no longer in the IBU RTP .5.5.6  The BIU will coordinate with National Anti-Doping Organisations to identify the Athletes in the IBU RTP and to collect their whereabouts information.