Who must wear a helmet in Montana, the penalties for not wearing one, and the eye-protection rules every rider should know.
Montana requires protective headgear for any motorcycle operator or passenger under the age of 18 (MCA 61-9-417). Once a rider turns 18, wearing a helmet becomes a personal choice under Montana law.
Choose a helmet that meets U.S. Department of Transportation standards; a label from the Snell Memorial Foundation is added assurance of quality. The helmet should fit snugly all the way around and be free of cracks, loose padding or frayed straps.
Montana has a partial helmet law. Any operator or passenger under 18 must wear a helmet, under Montana Code Annotated 61-9-417. A rider 18 or older may legally ride without one.
The manual itself paraphrases Montana's motor vehicle laws and is not a complete legal reference — courts go by the actual language of the Montana Code Annotated. Regardless of the law, the manual notes that a securely fastened, quality helmet is the single most important thing you can do to improve your chances of surviving a crash.
Riding without a required helmet — for an operator or passenger under 18 — is a traffic violation in Montana. Because helmet use for minors is set by statute, a citation can bring a fine and an operator can be cited for carrying an unhelmeted under-18 passenger. Confirm current fine amounts with the Montana MVD or a local court.
Montana's required-equipment list in the supplement does not include eye protection, but the manual strongly recommends a plastic shatter-resistant face shield or goggles to protect your face and eyes from wind, dust, insects and debris. A face shield protects your whole face; goggles protect only the eyes, and a windshield is not a substitute for either. Tinted eye protection should not be worn when little light is available.
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 reflect the consensus of major rider-education sources — confirm with the state agency before your visit. The Montana written test is based on the Montana Motorcycle Supplement (Revised 12/15) — the MSF Motorcycle Operator Manual plus a Montana licensing/equipment section. The MVD does not publish a question count or passing score; about 25 questions with an 80% passing score (20 correct) is the multi-site consensus — confirm with the Montana MVD. Helmet age is set by statute (MCA 61-9-417), not the manual.