5.5.3  Where an Athlete is included in an international Registered Testing Pool by IWWF  and in a national Registered Testing Pool by their National Anti -Doping Organization, the National Anti-Doping Organization and IWWF  shall agree between themselves which of  them shall accept that Athlete's whereabouts filings; in no case shall an Athlete be required to make whereabouts filings to more than one of them.