Canadian impaired driving laws came into effect as of June 26, 2018


As we get closer to October 17, 2018 we are getting to learn more and more about how Cannabis will impact Canadians across the provinces. The latest update is the Impaired Driving Laws

The Department of Justice (DOJ) explains:

On April 13, 2017, the Government of Canada introduced Bill C-46, the most comprehensive reform to the Criminal Code transportation regime in more than 40 years. The Bill passed Parliament on June 20, 2018 and received Royal Assent on June 21, 2018. The new law is a modern, simplified, and more coherent system of reforms to better deter and detect drug and alcohol-impaired driving.

On their site, DOJ explains the Prohibited Drug Concentrations as:

The legislation creates three new offences for having a prohibited concentration of drugs in the blood within two hours of driving. The levels for THC are at:

  • For the summary conviction offence for 2 nanograms (ng) but less than 5 ng of THC per millilitre (mL) of blood

  • For the hybrid offence for 5 ng or more of THC per mL of blood

  • For the hybrid offence for a combination of 50 milligrams (mg) of alcohol per 100 ml blood + 2.5 ng or more of THC per 1 mL of blood 

Source: Impaired Driving Laws


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