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National Highway Traffic Safety Administration

National Highway Traffic Safety Administration (NHTSA) is dedicated to achieving the highest standards of excellence in motor vehicle and highway safety. The agency strives to exceed the expectations of its customers through its core values of Integrity, Service and Leadership.

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    • febrero 2019
      Fuente: National Highway Traffic Safety Administration
      Subido por: Knoema
      Acceso el: 28 febrero, 2019
      Seleccionar base de datos
      In March 2011, starting with 2009 data, FHWA implemented an enhanced methodology for estimating registered vehicles and vehicle miles traveled by vehicle type. In addition, updates were made to 2000 through 2008 data using this methodology. As a result of FHWA's changes, involvement rates may differ, and in some cases significantly , from previously published rates.
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