|Overall Safety Belt Use||71||85||84||86||87|
|Vans and sport utility vehicles||U||88||87||89||90|
|Motorcycle Helmet Useb||71||54||66||60||60|
KEY: U = data are unavailable.
a Seat belt use is as of the Fall each year. Motorcycle helmet use is as of the Fall each year.
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.
NOTE: Occupants of commercial and emergency vehicles are excluded.
SOURCE: U.S. Department of Transportation (USDOT), National Highway Traffic Safety Administration, Traffic Safety Facts: Research Notes, Seat Belt Use (Annual issues); and Motorcycle Helmet Use—Overall Results (Annual issues). Available at http://www-nrd.nhtsa.dot.gov as of June 2014 as cited in USDOT, Bureau of Transportation Statistics, National Transportation Statistics, table 2-30, available at http://www.bts.gov as of March 2015.