From Special Olympics North America:
Special Olympics values the safety of all athletes and their use of appropriate protective equipment. This memo is to advise Special Olympics Programs on new FIS standards for alpine ski helmets.
In order to improve safety, the USSA Alpine Sports Committee has confirmed that the regulations requiring the use of helmets for Giant Slalom, Super-G and Downhill that meet new FIS standards will be mandatory for all competitors in the 2016-2017 season. Special Olympics Sports recently adopted these requirements.
The new FIS helmet certification standards will be phased In during the 2017-2018 and 2018-2019 seasons. (USSA “Ski Helmet Regulations” are available on the USSA web site at http://ussa.org/alpine-programs/masters/rules).