Examination of the Legalization and Decriminalization of Marijuana on the DWI System: Expert Panel

The legalization of marijuana is receiving intense media attention throughout the country, and many States are considering whether they should legalize marijuana for recreational use. States need information on the impact of increased marijuana use on the safety of their citizens, including the safety of citizens who are not using the drug themselves.This project, which includes two stages, will examine how a State’s Driving While Intoxicated/Impaired (DWI) system evolves with the legalization of recreational marijuana. This project will “tell the story” of issues the arrest, prosecution, adjudication, and administrative systems face with a potential increase in drivers positive for marijuana. Lawmakers, State governments, the National Highway Traffic Safety Administration (NHTSA) and other federal agencies are the primary audience for the project results. In the first stage, NHTSA and the Governors Highway Safety Administration (GHSA) convened one-and-a-half day expert panel of professionals involved in and impacted by the enactment of recreational and/or medical marijuana laws. Participants represented States that had enacted such laws and fields of practice that are engaged in the DWI system, including law enforcement, prosecutors, judges, probation, toxicologists, and highway safety officials.

  • Supplemental Notes:
    • See technical report "Examination of the Legalization and Decriminalization of Marijuana on the DWI System: Highlights from the Expert Panel Meeting" (DOT HS 812 430, June 2017). This study was conducted under the National Cooperative Research and Evaluation Program (NCREP), which is administered by the National Highway Traffic Safety Administration (NHTSA) and jointly managed by NHTSA and the Governors Highway Safety Association.

Language

  • English

Project

  • Status: Completed
  • Funding: $93,060
  • Contract Numbers:

    DTNH2214V00127

  • Sponsor Organizations:

    National Highway Traffic Safety Administration

    1200 New Jersey Avenue, SE
    Washington, D.C.  United States  20590

    Governors Highway Safety Association

    444 N. Capitol Street, NW, Suite 722
    Washington, DC  United States  20001
  • Project Managers:

    Smither, DeReece

  • Performing Organizations:

    Volpe National Transportation Systems Center

    55 Broadway
    Cambridge, MA  United States  02142
  • Principal Investigators:

    Smither, Dereece

  • Start Date: 20150801
  • Expected Completion Date: 0
  • Actual Completion Date: 20170600
  • USDOT Program: Behavioral Safety Research
  • Subprogram: Drug Impaired Driving
  • Subprogram: NCREP

Subject/Index Terms

Filing Info

  • Accession Number: 01641221
  • Record Type: Research project
  • Source Agency: National Highway Traffic Safety Administration
  • Contract Numbers: DTNH2214V00127
  • Files: RiP, USDOT
  • Created Date: Jul 19 2017 10:30AM