From the FAI:

10 July 2008

Dear FAI Members,

The World Anti-Doping Agency (WADA) Prohibited List 2008 specifically prohibits the artificial delivery of oxygen, whereas the International Civil Aviation Organisation (ICAO) mandates the use of supplemental oxygen to counter the effects of hypoxia.

WADA agrees that the health and safety of our athletes is paramount and does not consider the transportation of oxygen in an aircraft to be an anti-doping rule violation.

FAI is therefore pleased to inform members that they may use supplemental oxygen in aircraft during FAI events. If you need any further information, please contact the undersigned.

With best regards,

Rob Hughes
General Projects Manager
Fédération Aéronautique Internationale
Avenue Mon-Repos 24 CH-1005 LAUSANNE
Switzerland

Thanks to those who caught this little email and sent it to me.