Legalizing Marijuana and Workplace Safety

Marijuana

 

Aug 20, 2018

By Heather Hettiarachchi

Recreational use of marijuana becomes legal on October 17. This has potentially serious implications for workplace health and safety. In this article, contributor Heather Hettiarachchi reviews a recent human rights decision considering whether who dismissed a worker for using medical marijuana on the job was discriminating on the basis of disability. Heather concludes her article with useful takeaways for employers.

In a recent decision, Aitchison v L&L Painting and Decorating Ltd., 2018 HRTO 238, the Ontario Human Rights Tribunal upheld the termination of an employee who was using marijuana at work, ostensibly for medical purposes.

Background

The employer was a commercial contractor involved in restoring high-rise buildings. The complainant worked for the employer as a seasonal painter from 2011 to 2015. The complainant suffered from chronic pain in his back and neck as a result of a degenerative disc disease and started using medical marijuana in March 2015 to manage the pain. Before that, he had been self-medicating with marijuana.

In order to perform his job, the complainant worked on a “swing stage” that was suspended outside the building. On the morning of June 18, 2015, the site supervisor saw the complainant smoking marijuana while on the swing stage, which was at a level of 37 floors. The complainant was also not wearing a hard hat and was untethered. The supervisor sent the complainant home in accordance with the general contractor’s zero tolerance policy on the use of intoxicating drugs and alcohol on the worksite, and the complainant was ultimately terminated on July 6 by the employer. The complainant then filed a human rights complaint on the ground of discrimination based on disability; namely, that the employer had failed to accommodate him.

What was said at the hearing

The complainant argued that his disability was a factor in the employer’s decision to terminate his employment and that in relying on the policy the employer failed to take an individualized approach to his accommodation needs. The complainant also argued that the employer should have inquired whether his use of marijuana was for medical purposes, or possibly part of an addiction.

The complainant also stated that he had an understanding with the site supervisor that he could medicate in a designated spot away from the rest of the crew during his breaks and that he medicated himself on the swing stage because he worked on the 37th floor, which left no time for him to go down to the ground level during his breaks.

The employer stated that it had terminated the complainant because of health and safety concerns relating to impairment while at work. The employer stated that it would have been reckless to have allowed the complainant to work in a potentially intoxicated state and that if the general contractor had observed these events the employer could have lost its contract.

The employer also produced evidence to show that subcontractors were contractually obliged to adopt the general contractor’s policy and that zero-tolerance policies were common in the construction industry. The evidence also showed that all employees had been provided training, which included watching a health and safety video that referenced the policy.

Decision

The tribunal found that, given the health and safety risks inherent to that particular worksite, the dismissal of the complainant was not discriminatory and that the employer had not acted in a discriminatory manner. In reaching this decision, the Tribunal considered the following:

  • there was no evidence to indicate that the site supervisor had condoned the marijuana use
  • there was no evidence to indicate that the complainant had requested an accommodation in relation to the marijuana use
  • it was the complainant’s choice and preference to self-medicate while at work and if the complainant had asked his physician whether he should medicate at work, the physician would have instructed him not to, given the nature of the complainant’s job
  • there was no evidence to suggest the complainant was addicted to marijuana
  • the employer did not apply the policy in a mechanical way, but instead considered the specific circumstances

The tribunal noted that an employee does not have an absolute right to smoke marijuana at work regardless of whether it is used for medicinal purposes and that an employer is not required to accommodate preferences with regard to using marijuana if doing so would amount to undue hardship. The tribunal also noted that the employer had no obligation to consider whether it could reasonably accommodate the complainant after the fact, i.e., after the complainant had provided grounds for his termination. The tribunal further noted that it would not be reasonable to expect that the employer would have had to formally test the complainant’s level of impairment, before it could raise a health and safety issue.

In finding that the policy itself was not discriminatory, the tribunal considered the following:

  • zero tolerance policies are commonly used in the construction industry given the safety risks inherent in that industry
  • the employer adopted the policy in the honest belief that allowing someone intoxicated into the worksite was a serious risk to that individual as well as the public
  • the policy was reasonably necessary to protect the health and safety of the workers and the public
  • the policy did not impose automatic termination as a condition – it only required the removal of an intoxicated employee from the job site
  • the policy did not preclude the accommodation of employees who needed to use medical marijuana as such employees could be accommodated in non-safety sensitive positions
  • the policy did not stigmatize the use of marijuana based on its history as an illegal substance

Employer takeaways

  • Employees do not have an absolute right to smoke marijuana at work even for medicinal purposes.
  • An employer does not have to accommodate employee preferences in relation to marijuana use if it would result in undue hardship.
  • An employer is not required to consider whether an employee needs accommodation, after an employee has already provided the grounds on which the termination is based.
  • Note the factors to be considered in drafting a zero tolerance impairment policy

Heather Hettiarachchi, LLB; MSC; CPHR, is a lawyer, mediator and investigator with Integritas Workplace Law Corporation, which she founded to represent clients in human rights proceedings, arbitrations and labour board proceedings, employment standards proceedings, wrongful dismissal matters and privacy. She has excellent negotiation and dispute resolution skills and routinely settles issues before they proceed to trial/hearings. She is passionate about workplace integrity and focuses on educating clients on utilizing best practices to avoid/minimize workplace conflict; iwl@telus.net604-816-8577; www.integritasworkplacelaw.com

Photo source: Herbal Hemp on Pixabay

 

Related Articles


Latest Articles

  • Stephanie Medeiros on EV Infrastructure in Canada, Innovative Technologies, Well-Planned Charging Networks, & Commercial Fleets

    Stephanie Medeiros on EV Infrastructure in Canada, Innovative Technologies, Well-Planned Charging Networks, & Commercial Fleets

    September 3, 2026 By Blake Marchand In this Q&A with Stephanie Medeiros, the Head of Mobility at Schneider Electric Canada provides insight into her perspective on EV charging infrastructure in Canada, factors that will contribute to growing EV adoption, grid modernization for commercial fleets, the role of Vehicle-to-Grid and other innovative approaches to electrification. The focus of… Read More…

  • LEDVANCE: Understanding Light Beam Angles

    LEDVANCE: Understanding Light Beam Angles

    September 3, 2026 Light Beam Angles: How It Affects Different Types of Lighting, Where It Is Applied & What to Consider When Choosing the Right One Beam angle is important in lighting design. It determines how light spreads within a space and influences both functionality and atmosphere. By understanding beam angles, you can achieve both… Read More…

  • ITC 101 Series: Why Certifications (UL, CSA) Matter in Industrial Components

    ITC 101 Series: Why Certifications (UL, CSA) Matter in Industrial Components

    September 2, 2026 By ITC Electrical Components When selecting industrial electrical components, certification is more than a logo on a datasheet. A certification mark indicates that a product or component has been independently evaluated against specified requirements for its intended market. In North America, selecting products with the appropriate certification can affect regulatory acceptance, equipment… Read More…

  • Project Spotlight: Leigh Square Fountain

    Project Spotlight: Leigh Square Fountain

    September 2, 2026 In spring 2025, the City of Port Coquitlam unveiled a transformed Leigh Square, reimagined as a vibrant, accessible, and welcoming gathering place in the heart of downtown. At the heart of the renewed plaza, a Bellagio-style programmable dancing fountain is integrated directly into the paving—three interlocking rings where jets rise, fall, and… Read More…


Changing Scene

  • 2026 Ontario Apprenticeship Awards Call for Nominations

    2026 Ontario Apprenticeship Awards Call for Nominations

    September 3, 2026 Skilled Trades Ontario is proud to open nominations for the 2026 Ontario Apprenticeship Awards, recognizing outstanding apprentices, journeypersons, organizations and skilled trades leaders who are helping strengthen Ontario’s apprenticeship system. Award recipients will be announced at the Ontario Apprenticeship Summit on November 4, 2026, at the Toronto Congress Centre. Nominations must be submitted… Read More…

  • Bartle & Gibson Announces New Partnership with Hubbell Canada

    Bartle & Gibson Announces New Partnership with Hubbell Canada

    September 3, 2026 Bartle & Gibson Co. Ltd., an Alberta-based premier plumbing, heating and electrical distributor and Hubbell Canada have announced a new regional partnership enabling increased access to Hubbell Canada’s end-to-end electrical product portfolio across Western Canada. “With our strong presence in the west through 31 branches and counting located in Alberta, Saskatchewan, British… Read More…

  • Bartle & Gibson Opens Salmon Arm Location

    Bartle & Gibson Opens Salmon Arm Location

    September 3, 2026 Bartle & Gibson opened their new Salmon Arm location on July 20th. The Salmon Arm location features: This site is strategically positioned in the city of Salmon Arm, located near to the busy Picadilly Mall.  Salmon Arm branch is located at: 621- 10 Street SW Salmon ARM, BC V1E 1T1 Photo Source Read More…

  • MacKinnon Magnetics Announces Partnership with Resilient Sales Corporation in Northeastern Ontario

    MacKinnon Magnetics Announces Partnership with Resilient Sales Corporation in Northeastern Ontario

    September 3, 2026 MacKinnon Magnetics is pleased to welcome Resilient Sales Corporation as their newest sales agency partner. Resilient Sales will represent MacKinnon Magnetics across Northeastern Ontario, including the Districts of Muskoka and Parry Sound. Key markets include Sudbury, North Bay, Timmins, Kirkland Lake, Sault Ste. Marie, Huntsville, Bracebridge and Parry Sound. “This partnership expands… Read More…