Download the new Class Rules (version 15 December 2025) here: https://www.sailing.org/classes/nacra-15/#Documents Most important changes in the new version: Helmets: C3.1.a (ii) Each crew member shall wear a helmet that shall be to the minimum standard EN1385, EN1077, EN 966, ASTM 2020, Snell S98 or equivalent with a brightly coloured region of at least 300 square centimetres of the exterior … Continue reading Class Rules