How can you tell if a helmet is DOT-certified? Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question How can you tell if a helmet is DOT-certified? Answers It will have a label attached to the helmet stating the certification. DOT-certified helmets are the only type of helmet sold in North America. It will have a green dot on the inside of the helmet. Explanation 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. This questions appears in the following tests: South Dakota Motorcycle Practice Test 16