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

Comments are closed

Just Posted

Nelson cyclist run over by truck

Driver ticketed for failing to yield right of way on left turn

Interior Health will not expand Police and Crisis Team

Southeast Division Chief Superintendent Brad Haugli asked IH to expand the program

Hwy 1 flooding causes massive delays on certain Arrow Lakes ferry routes

Motorists have been waiting around three hours to get on ferries

RDCK: spring flooding financial relief available

The provincial funds are for those affected by flooding in May and early June

Pamela Allain, Laura Gellatly join the Nelson Star

Allain oversees Black Press’s West Kootenay papers, while Gellatly is the Star’s new publisher

VIDEO: Musqueam Chief captures captivating footage of bald eagle catching meal

‘This is why we have chosen to live here since time immemorial,’ Chief Wayne Sparrow’s nephew says

Police ramp up efforts to get impaired drivers off B.C. roads this summer

July is dedicated to the Summer CounterAttack Impaired Driving Campaign

Migrant workers stage multi-city action for full status amid COVID-19 risks

‘COVID-19 has exacerbated an existing crisis’

Okanagan school drops ‘Rebels’ sports team name, citing links with U.S. Civil War

Name and formerly-used images “fly in the face” of the district’s human rights policy, says board chair

PHOTOS: B.C.’s top doc picks up personalized Fluevog shoes, tours mural exhibition

Murals of Gratitude exhibit includes at least one portrait of Henry alongside paintings of health-care workers

In troubled times: Independence Day in a land of confusion

Buffeted by invisible forces and just plain worn out, the United States of America celebrates its 244th birthday

Stop enforcing sex work laws during COVID-19, advocates say

There are provisions in Canada’s prostitution laws that make workers immune from prosecution, but not from arrest

Liberal party finished 2019 having spent $43 million, raised $42 million

All political parties had until midnight June 30 to submit their financial reports for last year

B.C. teacher loses licence after sexual relationships with two recently-graduated students

The teacher won’t be allowed to apply for a teaching certificate until 2035

Most Read