Canadian police have not seen a spike in cannabis-impaired driving since legalization. (Photo by THE CANADIAN PRESS)

Ottawa not looking at changing impaired driving laws despite study on THC levels

Feds say cannabis driving laws are ‘based on strong and indisputable evidence that cannabis is an impairing drug’

The federal government doesn’t plan on changing the legal THC limit for drivers, even after a B.C. study that suggested no connection between now-illegal amounts of the compound and risk of crashing.

A University of B.C. study, published in June in the journal Addictions, looked at THC amounts in blood samples from more than 3,000 people who were injured behind the wheel.

Of the 1,825 drivers deemed responsible in crashes, researchers found that drivers with less than five nanograms of THC, the psychoactive ingredient in cannabis, per millilitre of blood had no increased risk of crashing.

READ MORE: Low levels of THC in marijuana don’t increase car crashes: B.C. study

Canadians laws make driving with between two and five nanograms per millilitre a summary offence with a fine up to $1,000.

Having more five or more nanograms has a minimum fine of $1,000 and a max sentence of 10 years in jail for the first offence.

Researchers weren’t able determine if more than five nanograms increased the risk of crashing because only 20 drivers had that much, an inconclusive sample.

A spokesperson for federal Justice Department told Black Press Media that cannabis driving laws were “based on strong and indisputable evidence that cannabis is an impairing drug.”

“The prohibited levels also take into account the approach taken in other jurisdictions, including jurisdictions where cannabis has been legalized,” spokesperson Ian McLeod said in an email.

The fines for 2 nanograms or less are a “a precautionary approach taking into account the best available scientific evidence related to THC,” while the five nanogram amount indicates recent use, McLeod said.

According to UBC researcheres, THC levels peak above 100 nanograms per millilitre within 15 minutes of smoking pot and then drop to two nanograms or less within the next four hours.

Levels of THC take about eight hours to drop to two nanograms or less after consuming cannabis.

READ MORE: Early data suggests no post-legalization spike in drug-impaired driving charges

READ MORE: Driving with dope: Police talk rules on cannabis in the car

READ MORE: After 10 years of fighting drunk drivers, Alexa’s Team asks: What about pot?


@katslepian

katya.slepian@bpdigital.ca

Like us on Facebook and follow us on Twitter.

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

COVID-19: Barkerville postpones opening date

Barkerville Historic Town and Park and Cottonwood House Historic Site hope to open June 18

Williams Lake library makes creative adjustments, offers story time online

Videos of branch assistant Darren Smith reading out loud will be posted regularly

Williams Lake agencies collaborate to support local businesses impacted by COVID-19

‘We are trying to make sure we are making good referrals,’ said City’s economic development officer

Xeni Gwet’in Wagon Trip cancelled due to COVID-19 pandemic, no Williams Lake Stampede in 2020

The trip has been a wonderful addition to the historic Stampede for the last 11 years

COVID-19 death toll reaches 50 in B.C., while daily case count steadies

B.C. records 34 new cases in the province, bringing total active confirmed cases to 462

B.C. unveils $5M for mental health supports during the COVID-19 pandemic

Will include virtual clinics and resources for British Columbians, including front-line workers

B.C.’s COVID-19 rent supplement starts taking applications

$300 to $500 to landlords for April, May and June if eligible

Reality TV show about bodybuilders still filming in Okanagan, amid COVID-19

Five bodybuilders from across the country flew to Kelowna to move into a house for a reality TV show

B.C.’s top doctor details prescription for safe long weekend

Yes, it includes hosting an online cooking show

BC SPCA seeks help for abandoned German shepherd puppies

Donations have ‘petered out’ as doors are closed due to COVID-19

UNBC opts for virtual convocation in June, commits to face-to-face after COVID-19

Interim president Geoff Payne said feedback prompted him to commit to traditional one when possible

Researchers to study whether plasma of recovered patients can treat COVID-19

Plasma is the liquid portion of the blood that contains the antibodies that protect against illness

Most Read