| Title | Marijuana-Impaired Driving - A Report to Congress |
|---|---|
| Record ID | 64336 |
| Personal Name Creator |
Compton, Richard P. |
| Corporate Creator | United States. Department of Transportation. National Highway Traffic Safety Administration. Office of Behavioral Safety Research |
| Publisher | United States. National Highway Traffic Safety Administration |
| Publication Date | 20170701 |
| Language | English |
| Abstract | This report was prepared in accordance with Section 4008 (Marijuana-Impaired Driving) of the Fixing America’s Surface Transportation Act (FAST Act), Pub. L. 114-94. The report summarizes what is known about marijuana use and driving. The report describes the absorption, distribution and elimination of delta-9-tetrahydrocannabinal (THC) the primary psychoactive substance in marijuana, in the body. It contrasts this process with the absorption, distribution and elimination of alcohol in the body, as they are very different processes. The poor correlation of THC concentrations in the blood with impairment is discussed, along with the implication that setting per se levels is not meaningful. Some of the challenges of measuring driving impairment resulting from marijuana use are reviewed. State laws relating to marijuana and driving are presented. What is known about the prevalence of marijuana-impaired driving and the crash risk associated with marijuana-impaired driving is reviewed. Finally, the report presents information on training for law enforcement to detect marijuana impairment in drivers, the feasibility of developing an impairment standard for driving under the influence of marijuana and recommendations for increasing data collection regarding the prevalence and effects of marijuana-impaired driving. |
| Rosap ID | dot:34995 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/34995 |
| TRT Terms | Alcohol use; Crash risk forecasting; Drugged drivers; Drunk driving; Law enforcement; Marijuana; Per se laws; Recommendations; State laws; Training |
| General Subjects | Marijuana-Impaired Driving; THC |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
01645164 |
| Report Number | DOT HS 812 440 |
| Availability | NHTSA - Behavioral Safety Research |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/64000/64300/64336/812440-marijuana-impaired-driving-report-to-congress.pdf |
| Format | |
| Database | NTL Digital Repository |