Washington Traffic Safety Commission

Thursday, September 24, 2015

Olympia, WA – Newly released data from the Washington Traffic Safety Commission (WTSC) shows that marijuana is increasing as a factor in deadly crashes. The number of drivers involved in deadly crashes who tested positive for marijuana increased 48 percent from 2013 to 2014. 
“This study is a step towards answering the myriad of questions we have about the impact of legalized marijuana on driving.