Marijuana and Driving

  • Driving, Worker Safety Not Affected by Legalization
    July 27, 2010 - A a careful review of the scientific evidence shows that fears about marijuana’s impact on road safety are unwarranted. There is no good scientific evidence that drug testing improves workplace safety.
  • "Drug Test Results and Accident Risks" from Cal NORML Guide to Interpreting Drug Test Results (April 2009)
  • New Studies Confirm: Marijuana a Lesser Driving Hazard than Alcohol - Drug urine tests unjustified.
  • Review of accident studies shows marijuana not a major public highway safety hazard, refuting need for "zero-tolerance" DUI laws and bans on public use. Nonetheless, study shows marijuana use is linked to increased injury risk, confirming California NORML's advice to users.
  • Expert review of drug tests and per se "driving under the influence" limits.