Which Jobs Require Marijuana or Cannabis Hair Testing in Canada?

Cannabis may be legal in Canada, but that does not mean workers are permitted to be high on the job. Like alcohol, marijuana use during work hours is frowned upon or forbidden by many employers. In some cases, being high on the job also creates a health and safety risk (both to the individual and others in the workplace).

Despite these conventions, there are few situations in which employers in Canada are permitted to have a worker tested for marijuana use at work. As outlined in a brief by the Ontario Human Rights Commission, drug testing may be permissible as part of a post-incident investigation or a return-to-work rehabilitation plan; but even then, it’s restricted by the protections in place by human rights laws.

When it comes to marijuana or cannabis hair testing, it is even less likely that employers will be permitted to subject their employees to the test. This is because hair testing is not a feasible means of testing cannabis impairment.

Unlike urine or blood sample tests, hair tests can detect evidence of marijuana up to 90 days or longer after use, which is a far wider window of detecion than either of the fluid-based tests. Additionally, the amount of delta-0-tetrahydrocannabinol (THC) found in hair follicles does not increase when a person is high and then decrease as they come down. The amount of THC found in a hair sample can indicate whether the person is an infrequent or chronic user of marijuana, but not whether they are currently impaired.

As explained in an article published by Healthline, THC is temporarily stored in a user’s organs and fatty tissues, then broken down in the liver and disposed of in urine or stool. However, THC that finds its way into the kidneys can be reabsorbed into the bloodstream. From there, traces of THC can bind to the user’s growing hair follicles and find its way into the hair itself five to 10 days later.

During a hair testing, the lab technician collects a sample of approximately 1.5 inches of hair near the base of the scalp. Since most people’s hair grows at a rate of about half an inch per month, the hair sample can reveal evidence of marijuana use over approximately 90 days previous.

In our view, the only circumstance in which a Canadian employer may have grounds to demand marijuana or cannabis hair testing from an employee would be as part of a return-to-work rehabilitation plan. If employee agreed to abstain from cannabis completely for during the rehabilitation period, a hair test could be justified as a way of ensuring the agreement is being upheld. Hair testing may be preferable in that case as it is less invasive than blood or urine tests.

In conclusion:

  • As far as we know, there are no jobs in Canada that require a hair drug test to screen for marijuana use as a prerequisite for employment.
  • Generally, employers are discouraged from subjected employees to drug tests of any kind and are only permitted to do so in certain situations. The only situation involving a hair test that might pass scrutiny would be testing as part of a return-to-work rehabilitation plan.
  • Hair tests cannot demonstrate that a person is high.

Baskets vs. Bike Trailers for Cycling: Which is Better?

When it comes to carrying stuff on your bike, you have two options: baskets and bike trailers. Not sure which is the right one for you? Consider the pros and cons of baskets and bike trailers for cycling.

Baskets vs. Bike Trailers: Stylishness

Bike baskets are classic. When I think of the platonic ideal of a cyclist, I imagine long, flowing locks, a wide-brimmed sun hat, and a wicker basket full of flowers. I’ve even spotted local cyclists adorning their baskets with fake flowers just for fun. Baskets are just plain cool.

Trailers, not so much. There are some good-looking trailers out there, but they’re still quite utilitarian. Baskets definitely come out on top in terms of style points.

Winner: Baskets

Baskets vs. Bike Trailers: Flexibility

Unfortunately, baskets only really come in one basic shape and size. You can’t go much bigger than a milk crate, which limits the things you can carry in one. If you’re just shopping for groceries, a basket is great, but you can’t move mountains. Oddly-shaped items are going to be a problem as well.

Bike trailers, on the other hand, are incredibly flexible. With a few modifications and some bungee cords, you can tow everything from canoes and kayaks to billboards.

Winner: Bike Trailers

Baskets vs. Bike Trailers: Weight

If you don’t want to haul around too much extra weight, a basket is the way to go. Lightweight trailers are still heavier than a simple basket.

Winner: Baskets

Baskets vs. Bike Trailers: Ease of Use

In terms of how easy they are to use and install, baskets and bike trailers come out about even. Both require the use of brackets to secure them to your bike. Both shift your balance a bit when they’re weighed down. Ease of use comes down to preference more than anything.


Baskets vs. Bike Trailers: Capacity

Need to move a crate full of oranges? A basket will do. Need to move six crates? No number of straps and bungee cords will make them fit. But with a bike trailer, you can carry about as many crates of oranges as your body can haul.

Winner: Bike Trailers

Welcome to Elephant Wave


Welcome to my blog!  My name is Effy and I’m here to share all my knowledge about health, beauty, benefits (of everything) and more!  I’m a huge advocate for better health benefits and better health in general.  I find that so many people around me don’t know their rights when it comes to health in the workplace as well as a ton of people who don’t live a healthy lifestyle.  I’m here to change that. 🙂

I’ll talk about great foods, different recipes and other items that will have great results on your health.  You can just think of me as your lifestyle coach, and I will most definitely whip you into shape!  Stay with me to work your lifestyle into a healthy and happy one.