HELENA, MT — Governor Steve Bullock signed House Bill 168 into law on Friday, April 5. House lawmakers approved the measure by a vote of 80 to 18 and Senate lawmakers concurred by a vote of 48 to 12.
House Bill 168 imposes a 5ng/ml per se threshold for THC in blood for anyone operating a motor vehicle.
Montana is the fifth state to impose a per se threshold for cannabinoids, joining Pennsylvania (1ng/ml), Ohio (2ng/ml), Nevada (2ng/ml) and Washington (5ng/ml).
Ten additional states impose zero tolerance per se thresholds for the presence of cannabinoids and/or their metabolites.
You can read the full text of HB 168 here: http://data.opi.mt.gov/bills/2013/billpdf/HB0168.pdf
First time convictions under the new state law are punishable by license revocation, loss of commercial drivers license, a fine of up to $1,000,and up to six months imprisonment.
State-licensed medical marijuana patients convicted under the per se law also face revocation of their state registry identification card.