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.

Just Posted

Our community news matters

Guest editorial by Arnold Malone

The GoPro that refused to drown

A snorkler found a submerged GoPro and used the camera footage to find the owners

Shuswap Indian Band supports students, voices concerns for families

Shuwap Indian Band collaborates with school district on crafts, workbooks, worksheets and contests

Group home offers solace through pandemic

Rolf Heer says “life is good” at Columbia Garden Village

LIVE: Procession to honour Snowbirds Capt. Jennifer Casey comes to Halifax

Snowbirds service member died in a crash in Kamloops one week ago

RCMP facing ‘systemic sustainability challenges’ due to provincial policing role

Provinces, territories and municipalities pay anywhere from 70 to 90 per cent of the cost of the RCMP’s services

One man dead after standoff with Chilliwack RCMP

The Independent Investigations Office of B.C. is investigating the RCMP’s role in the death

B.C. employers worry about safety, cash flow, second wave in COVID-19 restart

A survey found 75 per cent of businesses worry about attracting customers

Introducing the West Coast Traveller: A voyage of the mind

Top armchair travel content for Alaska, Yukon, BC, Alberta, Washington, Oregon and California!

Ex-BC Greens leader Andrew Weaver says province came close to early election

Disagreement centred on the LNG Canada project in northern B.C.

Canada’s NHL teams offer options to season-ticket holders

Canadian teams are offering refunds, but also are pushing a number of incentives to let them keep the money

B.C. premier says lessons to learn from past racism during response to pandemic

B.C. formally apologized in the legislature chamber in 2008 for its role in the Komagata Maru tragedy

Snowbirds to remain at Kamloops Airport indefinitely after fatal crash

small contingent of the Snowbirds team is staying in Kamloops, acting as stewards of the jets

Most Read