This label is important because it provides evidence and forensic evidence that the helmet is approved. The first letter E, followed by a number, says the Ministry of European transport guarantor of approval (E3 = Italy, E1 = Germany, UK = E11, etc ..). The second multi-digit number (. Eg 051111) is unique to the helmet model; it provides the link with the approval certificate and with the entire test documentation that form. In short, it is the link with the headset concept data. After this issue, the following letters appear alternately:

P =helmet also protects the chin

NP =helmet does not protect the chin

J =jet helmet

P/J =also protecting helmet chin + jet helmet

The last number several numbers, one for each physical helmet can trace the batch and date of production and, consequently, the information on the production process.