The rating of ski helmets is both national, international and continental. US helmet safety standards are met under the ASTM certification. European helmet certification is drafted under the EN 1077 certification. It’s one of the leading certifications on an international level due to its rigor. But it doesn’t mean all helmets without certification are not safe, they might be even safer. But anyone looking to get into skiing needs to adhere to these safety standards are they have been calculated for the average skier. A helmet that looks good but which doesn’t meet minimum safety standards is not going to be of any use in case of an accident.