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

Buddhist monument to be dedicated in Slocan cemetery

A new post has been created to mark the site where at least nine Japanese Canadians were cremated

Passenger counts still rising at West Kootenay Regional Airport

Reliability rates also on rise in second quarter.

Andrew Bellerby out as RDCK’s regional fire chief

Bellerby held the job since January 2016

Craft cannabis development planned for Castlegar

Plans are underway for one of the first craft cannabis industrial parks in the province.

Abra Brynne wins Kootenay-Columbia Green Party nomination

Brynne is one of three candidates who will challenge MP Wayne Stetski

Rich the Vegan scoots across Canada for the animals

Rich Adams is riding his push scooter across Canada to bring awareness to the dog meat trade in Asia

Canadian high school science courses behind on climate change, says UBC study

Researchers found performance on key areas varies by province and territory

Six inducted into BC Hockey Hall of Fame

The 26th ceremony in Penticton welcomed powerful figures both from on and off the ice

RCMP investigate two shootings in the Lower Mainland

Incidents happened in Surrey, with a victim being treated at Langley Memorial Hospital

CRA program to help poor file taxes yields noticeable bump in people helped

Extra money allows volunteer-driven clinics to operate year-round

Recall: Certain Pacific oysters may pose threat of paralytic shellfish poisoning

Consumers urged to either return affected packages or throw them out

How a Kamloops-born man helped put us on the moon

Jim Chamberlin did troubleshooting for the Apollo program, which led to its success

Sexual harassment complaints soaring amid ‘frat boy culture’ in Canada’s airline industry

‘It’s a #MeToo dumpster fire…and it’s exhausting for survivors’

Most Read