U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
A: The State Serious Injury Conversion Tables were compiled by the National Highway Traffic Safety Administration (NHTSA) using State Motor Vehicle Crash Manuals to assist States in reporting serious injuries as required by FHWA's Safety Performance Management Measures Final Rule (23 CFR 490) and NHTSA's Uniform Procedures for State Highway Safety Grant Programs Interim Final Rule (23 CFR 1300). These two regulations require that serious injuries be reported per the Model Minimum Uniform Crash Criteria (MMUCC) 4th Edition attribute for "Suspected Serious Injury (A)" as defined in the "P5. Injury Status" element. The tables also provide the equivalent definitions for pedestrian and pedalcyclist as defined in the American National Standard Institute (ANSI) D16.1-2007 Manual on the Classification of Motor Vehicle Traffic Accidents in order for States to report the required number of non-motorized serious injuries.
A: FHWA and NHTSA established a single, national definition for serious injuries to ensure a consistent, coordinated, and comparable system for reporting serious injury data. The State Serious Injury Conversion Tables will help those States who have not yet adopted the MMUCC 4th edition definition to convert serious injuries from their State Motor Vehicle Crash Database for the purpose of reporting safety performance measures beginning with the 2017 Highway Safety Improvement Program (HSIP) Annual Report and the 2018 Highway Safety Plan (HSP)
A: States that do not currently use the MMUCC 4th Edition attribute for "Suspected Serious Injury (A)" shall use the State Serious Injury Conversion Tables until April 15, 2019 to convert the equivalent definition and attributes from their State's Motor Vehicle Crash Database to report serious injuries. However, FHWA and NHTSA are recommending that States adopt the MMUCC 4th Edition attribute for "Suspected Serious Injury (A)" on or before January 1, 2019 in order to produce a consistent and compliant data set for the entire 2019 calendar year. Additionally, States that do not use the ANSI D16.1 standard to define seriously injured person types for pedestrian and pedalcyclist can use the State Serious Injury Conversion Tables to convert the equivalent person types from the State Motor Vehicle Crash Database to report non-motorized serious injuries.
A: The State Serious Injury Conversion Tables are located on FHWA's Safety PM webpage. Please refer to the Instructions for additional information on how to use the State Serious Injury Conversion Tables.