U.S. Ski & Snowboard, as the NGB for Olympic skiing and snowboarding, is required by the IOC, USOPC, and FIS to comply with the anti-doping rules and regulations established internationally by the World Anti-Doping Agency (WADA) in its code for eligibility in these sports.
All athletes in all Olympic Sports in the U.S. are subject to the rules of the US Anti-Doping Agency (USADA) and the World Anti-Doping Agency (WADA). It is not an optional program but a requirement for all National / International level athletes participating in Olympic sports. If you are unsure if you are subject to the WADA code please contact USADA directly.