8.2. The Competitor is reminded of the following essential criteria when buying or using a helmet:
a. Correct Standard. b. Correct Fit. c. Security. d. Condition.
9. Condition and Care of Helmet
9.1. The user must bear the prime responsibility for ensuring that the helmet is fit for the purpose intended since significant damage to the helmet may have been sustained without this being apparent to the Scrutineer.
9.2. Anything other than minor superficial damage is likely to result in the Scrutineer removing the ASN sticker and impounding the helmet for the Event.
9.3. It is in everyone’ s interest for the Competitor to buy the best helmet possible and to look after it( the best is not necessarily the most expensive). A helmet bag should always be used.
9.4. There must be no alteration to the structure of a helmet. Where a radio intercom is fitted this should only be done in accordance with the helmet manufacturer’ s instructions. Fitment of cameras to helmets by whatever means is not permitted unless an integral camera is provided by the helmet manufacturer and that model of helmet is approved under one of the accepted standards.
9.5. Use only a weak solution of soft soap and water to clean the interior and exterior of the helmet; do not get the interior too wet.
9.6. Some moulded plastic helmets although they meet approved standards can be seriously damaged by substances such as petrol paint adhesives cleaning agents and stickers( not the ASN stickers) – such damage may not always be apparent; however crazing or obvious dulling of the surface finish could indicate serious structural weakening of the helmet and is likely to result in the Scrutineer removing the ASN sticker and impounding the helmet for the Event.
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Motorsport UK National Competition Rules 2026 Edition 1
Chapter 9- Competitor Personal Safety Equipment 349