The North Face (TNF) has officially released a clean sport policy against doping as part of opening elite registration for the upcoming 50-mile Endurance Challenge Championship, which will be held on Dec. 3 in Marin Headlands, near San Francisco. Athletes who have been banned from competition by the International Association of Athletics Federations (IAAF), the World Anti-Doping Agency (WADA), the U.S. Anti-Doping Agency (USADA) or any national sports federation will not be admitted to compete in any of the TNF Endurance Challenge Series (ECS) events in North America while the ban is in effect. Once the individual's ban has been lifted, the athlete may participate but is forever ineligible for prize money, awards, podium recognition or overall age group competitive rankings at any distance. The company is also providing educational resources about clean sport in trail running through a dedicated ECS Clean Sport website presenting the full policy, code of ethics and educational materials for the Endurance Challenge Series.