Following is the official U.S. regulation, or "law" for what we motorcyclists in the U.S. know as the DOT regulations covering motorcycle helmets. In other words, a motorcycle helmet manufacturer would have to submit a helmet model to testing to the following regulations to meet DOT standards and the right to place the DOT sticker on the back of the helmet.
The Federal Motor Vehicle Safety Standard (FMVSS) known as FMVSS 218 (49CFR571.218), describes in great detail the requirements for "DOT" certification of all helmets sold in the United States for use by motorcyclists. Helmets that do not meet the minimal DOT certification standards may not be sold as "motorcycle helmets."
The Snell Memorial Foundation is an additional certification source intended to provide testing standards and "Snell" certification to a different standard than FMVSS 218. The Snell standards don't replace the DOT standards; meeting Snell standards is completely voluntary. All motorcycle helmets sold in the U.S.A. must be DOT "certified", in that they must have gone through the proper procedures in a certified testing lab to meet DOT standards for motorcycle helmets, but they are not required to be Snell certified.
A motorcycle helmet that carries both DOT and Snell standards may have gone through different testing schemes, but may not necessarily be superior to helmets that meets the DOT standard. There is some controversy over standards and testing, and it gets even more complicated if you consider the European ECE 22.05 standard.
See also the new SHARP motorcycle helmet rating system used in the UK.
senang citer.. macam SIRIM kat Malaysia.. Helmet diuji untuk memastikan kualiti helmet mematuhi garis panduan SIRIM.. lebih kurang camtu kot.. ahhahaa aku pun tak pasti.. aku reti copy dan paste je..
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