Marijuana and Driving

Stop California's Unscientific and Unnecessary Drugged Driving Law

  • Cal NORML Opposes Zero-Tolerance DUI Bill
    March 20, 2012 - A bill to establish a "zero-tolerance" DUI standard for marijuana has been introduced to the legislature by Assemblywoman Norma Torres (D-Pomona). The bill, AB 2552, would make the presence in blood or urine of any non-zero amount of cannabinoids (the distinctive ingredients of marijuana) presumptive evidence of driving under the influence. Included would be not only synthetic cannabinoids but also non-psychoactive metabolites, which can reside in the system for weeks after last use.
    Read CalNORML's letter to the Assembly Public Safety Committee on AB2552

  • California posted an impressive 11% decline in fatal auto accidents in 2010. This continues a strong downward trend that started in 2006. Fatalities are down 35% since then. The entire West Coast has experienced similar declines. Colorado also did well, posting a 6.5% in fatal accidents in 2010. As in California, this represents the lowest number of accidents since statistics began in 1994.
  • 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.