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

Climate, reconciliation and industry top all candidates agenda in Terrace

Debate was the candidate’s last opportunity to address voters in a public forum

Mt. Timothy Recreation Resort preparing for 2019/20 reopening

“We’ll be opening for skiers and boarders as soon as there is enough base to operate.”

Delay more determined than ever after strongman nationals

He said every single lift was a personal record for him at the event

Bella Coola enjoys successful 2019 tourism season

The addition of the Northern Sea Wolf saw a big boost in this year’s tourism numbers

CCRD attends annual UBCM conference

Ocean Falls, health care, and transportation all brought forth

ELECTION 2019: It’s so close, it could come down to who turns out to vote

Black Press Media’s polling analyst on the origins of predictive seat modelling in Canada

Jack’s Devils beat Quinn’s Canucks 1-0 in NHL brother battle

New Jersey youngster scores first career goal against Vancouver

Two charged after owner’s wild ride through Kamloops in his stolen truck

Crystal Rae Dorrington, 37, and Derrick Ronald Pearson, 32, facing multiple charges

Judge orders credit union’s bank records for Kelowna social worker facing theft allegations

The man is accused of negligence, breach of contract, fraud and a conspiracy with Interior Savings

Leaders pour it on with rallies, boosts for candidates as campaign reaches peak

The federal election campaign has reached a crescendo

Allegations of racism lead to ministry investigation at Vancouver private school

St. George’s School was contacted over what the school describes as ‘deeply offensive behaviour online’

Not a political question: Thunberg calls for climate action in Alberta

Edmonton police estimated the size of the crowd at about 4,000

Zantac, the over-the-counter heartburn drug, pulled in Canada, U.S.

Health Canada also investigates possible carcinogen in some ranitidine drugs

B.C. public safety minister says cannabis edibles not in stores til January

Mike Farnworth says he wants regional issues considered when it comes to licensing

Most Read