Helmet laws Governors Highway Safety Association http://www.ghsa.org/html/stateinfo/laws/helmet_laws.html 19 states currently require all riders to wear helmets 20 states Helmet Laws Across the U.S. Helmet Laws 31 states 31 states 47/50 states have passed motorcycle helmet laws Governors Highway Safety Association Governors Highway Safety Association Helmet Laws Across the U.S. http://www.ghsa.org/html/stateinfo/laws/helmet_laws.html http://www.ghsa.org/html/stateinfo/laws/helmet_laws.html Governors Highway Safety Association Not one website Louisiana is one of just 19 states that bicycle helmet law Helmet Laws Across the U.S. from the same site 21 states mandate that kids under 16 wear helmets