A street-legal U.S. helmet must pass DOT FMVSS No. 218 and show the DOT symbol on the outside back.
For the full breakdown, see our best Budget Motorcycle Helmet guide.
Skip the graphics and start a motorcycle helmet buying guide with the two things that do the actual safety work: fit, then certification. In the U.S., the legal baseline for street use is DOT FMVSS No. 218, and a helmet that fits properly and carries that certification is already doing most of the job. The steps below show how to check both the right way.
Why Does Fit Matter More Than The Rating?
A loose helmet shifts in a crash, and a shifted helmet cannot manage impact the way it was tested to. Fit outranks the rating because