13.2.1  Appeals Involving International -Level Athletes or International  Events   In  cases  arising  from  participation  in  an  International  Event  or  in  cases     involving  International -Level At hletes , the decision may be appealed exclusively to CAS.64  13.2.2  Appeals Involving Other Athletes or Other  Persons   In cases where Article 13.2.1 is not applicable, the decision may be appealed to an appellate  body,  in accordance  with rules  adopted  by the Natio nal Anti-Doping  Organization having authority over the Athlete or other  Person .