18.5 All National Ski Associations  shall establish rules requiring all Athlete s preparing for or  participat ing in a Competition  or activity  authorised or organised by a National Ski Associations  or one of its member organisations , and all Athlete Support Personnel  associated with such Athletes , to agree to be bound by these Anti -Doping Rules and to submit to the Results Management  authority of the Anti-Doping Organisation in conformity  with the Code  as a condition of such participation.