The 1999 FIS Freestyle World Ski Championships were held between March 10th and March 14th at the Meiringen-Hasliberg ski resort in Switzerland. The World Championships featured both men's and women's events in the Moguls, Aerials, Dual Moguls and Acro Skiing. This was to be the last appearance of Acro Skiing at the World Championships.
References
FIS Freestyle World Ski Championships 1999 Wikipedia(Text) CC BY-SA