While some provisions of the Code must be incorporated without substantive change by each anti-doping organization in its own anti-doping rules, other provisions of the Code establish mandatory guiding principles that allow flexibility in the formulation of rules by each anti-doping organization or establish requirements that must be followed by each anti-doping organization but need not be repeated in its own anti-doping rules.Anti-doping rules, like competition rules, are sport rules governing the conditions under which sport is played.