10.3.1 Standards
Helmets bearing one of the undermentioned 'standards' may be approved by the MSA subject to other criteria being met.

A) International events and all MSA events.

1. FIA 8868-2004
2. Snell SA2005
3. Snell SA2000
4. SFI Foundation 31.1A, 31.2A
5. BS 6658 Type A/FR

In addition the following are acceptable for:
B) All MSA events.

1. BS 6658 - 85 Type A (Type 'B' is not acceptable)

C) International and MSA national Kart Race events.

1. Snell K98 and K2005

Note: Snell standards can be verified be either a self adhesive label or a cloth label. the self adhesive label has a silvered background and the cloth label will approximate to the colour chart on page 243.

Part of the approval procedure is to affix an MSA sticker to the outside me the helmet in the approximate location of the driver's right ear. Stickers may only be affixed by selected scrutineers, by the MSA at Motor Sports House, or by selected manufacturers, after the helmet has been checked for conformity with the standard required and is considered to be it a satisfactory condition. MSA approval stickers, for which a fee of £1.20 is charged, and once individually affixed, cannot be reapplied. Note that helmet standards are regularly renewed and treated, and superseded. Standards will periodically cease to be acceptable; hence an element of 'lifing' will always remain.

Helmets approved for use in all disciplines require a blue MSA sticker to be affixed. Helmets which are accepted for use in kart racing only require a green MSA sticker to be affixed. These stickers are availiable from issuing scrutineers.