Misuse of drugs and methods of doping in connection with various physical activities have become serious problems for sports organizations and may seriously impair the health of the misusers. The Norwegian Confederation of Sports has banned doping, and carries out doping controls at competitions as well as out-of-competition tests. Doping controls and laboratory analyses are performed according to approved procedures. An athlete who is found guilty of doping will be excluded from organized sport for a specified period of time. Doctors have a special duty to keep themselves updated on the doping problem, and support the anti-doping work by their own practices.