How can you tell if a helmet is DOT-certified?

Question

A U.S. Department of Transportation (DOT)-compliant motorcycle helmet will have an attached label stating the manufacturer’s name and the model of the helmet.

Accepted Answer

It will have a label attached to the helmet stating the certification.

Answer

DOT-certified helmets are the only type of helmet sold in North America.

Answer

It will have a green dot on the inside of the helmet.