A labour arbitration decision released on April 13, 2026 reinforces a principle that Ontario HR leaders, union representatives, and workplace investigators repeatedly get wrong: discrimination is not harassment, and the two carry separate legal obligations even when they sit under the same article of a collective agreement or the same heading of a workplace policy. The full Canadian HR Reporter coverage is here.
The case turned on a grievance that was filed as a discrete discrimination complaint — about the scheduling and payout of vacation while an employee was on medical leave. Months later, on the doorstep of the hearing, the union tried to "clarify" the grievance to also include harassment and requested an additional six hearing days to run that new theory. The arbitrator refused. The reasons used language every HR leader should internalize:
"The absence of any earlier reference is not merely a matter of imprecision. It is a failure to raise the issue."
The arbitrator treated the proposed amendment as an impermissible expansion of the grievance. The original discrimination claim will proceed on its original schedule. The lesson cuts both ways — it is a union-side loss in this particular case, but it is also a warning shot to employers who blur the two concepts in their own policies and intake forms.
Key Takeaways
- Discrimination and harassment are legally distinct. Ontario law treats them as such, and so do collective agreements, tribunal adjudicators, and labour arbitrators.
- The duty to investigate harassment is a standalone statutory obligation under s. 32.0.7 of the Ontario OHSA. It does not travel with a discrimination complaint by default.
- The concepts also have distinct definitions under the Human Rights Code. Analyzing one as if it were the other is a common failure mode in internal investigations — and it is visible to tribunals and arbitrators on review.
- "Blended" complaint forms that ask only "what happened?" without separating the two concepts at intake push the analytical error downstream into the investigation file.
- Employers and unions alike should scope in — or scope out — harassment at the very first intake, in writing.
Why This Distinction Exists in Ontario Law
The definitions come from two statutes that most employers treat as one. They should not.
Discrimination under the Human Rights Code is adverse differential treatment connected to a protected ground — age, ancestry, citizenship, colour, creed, disability, ethnic origin, family status, gender expression, gender identity, marital status, place of origin, race, record of offences, sex, sexual orientation. The Code is a remedy statute; the analysis focuses on whether the adverse treatment is connected to the ground. The Ontario Human Rights Commission's policy framework lays out the employer's responsibility to prevent and respond.
Harassment in the workplace has its own definition under the Code ("engaging in a course of vexatious comment or conduct that is known or ought reasonably to be known to be unwelcome") and a separate, layered obligation under Part III.0.1 of the OHSA — the set of provisions introduced by Bill 168 (workplace violence) and Bill 132 (workplace harassment). The OHSA requires a written program, procedures for complaint intake where the alleged harasser is the employer or supervisor, mandatory annual review, and — at s. 32.0.7 — an investigation obligation that applies to every incident or complaint of workplace harassment, not only harassment connected to a Code-protected ground. For a crisp analysis of the two regimes, see Sherrard Kuzz's guidance on the duty to investigate.
In other words: harassment without a Code ground is still a statutory issue under the OHSA. Discrimination without a pattern of vexatious conduct is still a standalone issue under the Code. The two circles overlap, but they are not the same circle.
Where Employers Typically Collapse the Two — and What It Costs
We see four recurring failure modes across the Ontario HR clients we support:
1. "One complaint form to rule them all." The intake form asks the employee to "describe what happened" with no structured prompts separating a discrimination theory from a harassment theory. The investigator then has to reverse-engineer the legal theory. Tribunals and arbitrators read that investigator confusion as lack of rigour.
2. Policy consolidation that over-consolidates. A single "Respectful Workplace Policy" bundles discrimination, harassment, violence, and bullying into one framework with one procedure. This simplifies reading but erases the OHSA's distinct procedural requirements — particularly the s. 32.0.6 program obligations and the s. 32.0.7 investigation trigger.
3. Investigation scope that drifts. An investigator hired for a discrimination matter discovers facts that sound like harassment, and either (a) ignores them, or (b) silently expands the investigation without putting new allegations to the respondent. The Human Rights Tribunal's ruling in Bidwai v. Ontario Teachers' Pension Plan Board, 2024 HRTO 1092 is a reminder that procedurally defective investigations are themselves breaches of the Code — even when they look thorough from the outside. A useful plain-language summary from Williams HR Law walks through the failure modes.
4. Late-stage theory addition. As the April 13 arbitration decision illustrates, adding a harassment theory at the eleventh hour is treated as an impermissible expansion of the grievance or complaint. The same principle operates in HRTO practice. Once the scope is set, it sets the boundaries of the evidence, the witnesses, the findings, and the remedy.
A Practical Intake Protocol for Ontario Employers
The fix is not complicated. It is disciplined.
At intake, use a structured form that asks the complainant, separately:
- What adverse treatment are you alleging? (discrimination frame)
- Is the treatment connected to a protected ground? If yes, which one(s)?
- Is there a course of vexatious comment or conduct you want investigated? (harassment frame)
- Is there conduct that you consider threatening or violent? (workplace violence frame under OHSA s. 32.0.1)
Document the scoping decision in writing, before the investigator is retained. "The complaint is being investigated as [discrimination / harassment / workplace violence / all of the above]. The factual allegations falling within scope are listed in Appendix A." This is the moment to decide — not after the first witness interview.
Assign the right legal framework to each allegation. Discrimination allegations get the Code analysis. Harassment allegations get the OHSA s. 32.0.7 "appropriate in the circumstances" analysis. Workplace violence allegations trigger the OHSA s. 32.0.1 program. A single investigator can handle all three, but the analytical threads must be visibly distinct in the investigation plan, interview guides, and final report. Gowling WLG's analysis of the duty to investigate is a useful reference for how tribunals evaluate this.
Communicate scope to the respondent — in writing — with the allegations attached. If the investigator discovers new facts that fall outside the original scope, you have to formally expand the scope, with notice to the respondent and a fresh opportunity to respond. Silent scope creep is a procedural fairness breach.
Keep the reporting structure separate. The final investigation report should have distinct sections for each legal framework: findings on discrimination, findings on harassment, findings on violence. Remedies attach to each.
Why This Matters Beyond Unionized Workplaces
The arbitration decision sits in a unionized context, but the principle is general. Ontario adjudicators of every kind — HRTO members, labour arbitrators, judges on judicial review, Superior Court judges hearing constructive dismissal claims — expect employers to treat discrimination, harassment, and violence as distinct legal obligations. The best-prepared Ontario employers build that distinction into policy, intake, investigation, and reporting. The worst-prepared employers discover the distinction in a hearing room when an adjudicator refuses to let them argue a case they did not set up.
Where 1205 Consulting Fits
1205 Consulting helps Ontario employers architect workplace harassment and discrimination programs that hold up to regulatory and tribunal scrutiny. We also serve as external investigators where independence is required — for complaints involving senior respondents, small organizations, or matters that carry reputational or litigation risk. If your workplace harassment program has not been pressure-tested against the 2026 enforcement environment — including the new OHSA administrative monetary penalty regime — get in touch. See also our HR services and workplace investigations practice pages.
This article is not legal advice. Consult your legal counsel on specific matters. The practical lesson, though, is jurisdictional-agnostic: in Ontario, as in every Canadian jurisdiction with a modern workplace harassment regime, the cost of blurring the line between discrimination and harassment is paid by the party who blurred it first.
Wondering whether your current policies and intake process would survive scrutiny? Take our free 2-minute assessment or book a consultation.