(b) If it is not possible to fill the gap in the Signatory’s  Anti-Doping Activities in this way (for example, because national legislation prohibits it, and the National Anti-Doping Organization has not secured an amendment to that legislation or other solution), then it may be necessary as an alternative measure to exclude Athletes who would have been covered by the Signatory’s  Anti-Doping Activities from participating in the Olympic Games/Paralympic Games/other Events ,  in order to protect the rights of clean Athletes and to preserve public confidence in the integrity of competition at those events.