Who must wear a helmet in Tennessee, the penalties for not wearing one, and the eye-protection rules every rider should know.
Tennessee has a universal motorcycle helmet law. Every person operating or riding a motorcycle or motor-driven cycle must wear a crash helmet meeting federal motor vehicle safety standard 49 CFR 571.218, regardless of age (TN equipment law).
A rider 21 or older may wear a helmet that meets standard 218 but is exempt from the penetration, continuous-contour, and labeling rules — provided the helmet carries a label showing it complies with ASTM, the Consumer Product Safety Commission (CSPM), or the Snell Foundation. The helmet must be DOT-, ASTM-, CSPM-, or Snell-labeled before an examiner will give the road test.
There is no general adult exemption in Tennessee. If you are on a motorcycle — operating it or riding as a passenger — you must wear a qualifying helmet at every age.
The one narrow exception: a person 18 or older is exempt while riding in a parade at a speed not exceeding 30 mph. Crash helmets are also required on motorized bicycles regardless of the operator's age.
Riding without a required helmet violates Tennessee law and can bring a fine and other penalties; because the law also covers passengers, an operator can be cited for an unhelmeted passenger. A parent or guardian who knowingly lets a minor ride in violation of the law commits a misdemeanor punishable by a fine of up to $100 per violation. Confirm current fine amounts with the Tennessee Department of Safety and Homeland Security.
Separate from the helmet rule, every motorcycle or motor-driven cycle on a public road must have a windshield meeting U.S. Department of Transportation requirements — or, as an alternative, the operator and passenger must wear safety goggles or glasses with impact-resistant lenses, or a helmet with a face shield (TN equipment law).
A face shield protects your whole face, while goggles protect only the eyes; a windshield is not a substitute for a face shield or goggles when it comes to wind and debris (MSF p.5). Never wear tinted eye protection at night or in low light.
A legal motorcycle helmet must meet the U.S. Department of Transportation (DOT) FMVSS 218 standard. Look for the "DOT" certification label on the back. Helmets that meet stricter Snell or ECE standards offer additional protection. Avoid novelty helmets — they are not legal head protection.
Source: Test details are confirmed on the official agency page. Confirmed in an official search snippet: 30 questions, minimum 80% to pass. State law requires at least 25% of the test to cover alcohol and drugs.