New marijuana commercialization and legalization laws are having an impact on the safety of our public streets and highways; leaving law enforcement and courts with few tools to protect innocent lives. Currently eight states permit marijuana use for adults (both medical and nonmedical), but the laws concerning driving under the influence of marijuana are still evolving or non-existent.

The AAA Foundation for Traffic Safety commissioned a handful of studies to see what statistical data showed about the effects marijuana has on driving, if any. Two main findings stand out:

Fatal crashes involving drivers who recently used marijuana doubled in Washington after the state legalized the drug. Washington was one of the first two states to legalize the recreational use of marijuana, and these findings serve as an eye-opening case study for what other states may experience with road safety after legalizing the drug.
Legal limits, also known as per se limits, for marijuana and driving are arbitrary and unsupported by science

Marijuana for non-medical use approved by voters:

*indicates the state also allows medical marijuana

Washington
2012*

Colorado
2012*

Oregon
2014*

Alaska
2014*

California
2016*

Nevada2016*

Maine
2016*

Massachusetts
2016*

District of
Columbia