|Overall Safety Belt Use||82||81||82||83||84||85||84||86|
|Vans and sport utility vehicles||85||84||86||86||87||88||87||89|
|Motorcycle Helmet Useb||48||51||58||63||67||54||66||U|
a Seat belt use is as of the Fall each year except in 2005 (June). Motorcycle helmet use is as of the Fall each year except in 2005 (June).
b Only those operators and riders wearing safety helmets that met U.S. Department of Transportation (DOT) standards are counted. Those safety helmets that do not meet DOT standards are treated as if the operator/rider were not wearing a helmet.
KEY: U = data are unavailable.
NOTE: Occupants of commercial and emergency vehicles are excluded.
SOURCES: U.S. Department of Transportation, National Highway Traffic Safety Administration, Traffic Safety Facts: Research Notes, Seat Belt Use in 2012—Overall Results (Annual issues for specific year); and Motorcycle Helmet Use—Overall Results(Annual issues for specific year), available at http://www-nrd.nhtsa.dot.gov as of March 2012.