Seniority and layoffs: in what order must your employer lay off workers?

A drop in contracts, a production slowdown, a corporate restructuring — the reasons behind a temporary (or permanent) layoff are many. What rarely changes, though, is the question that immediately runs through every unionized worker's mind: who goes first, and why me?

That answer does not belong to the employer alone. In a unionized workplace, the collective agreement — the negotiated contract between the union and the employer — sets out precisely how layoffs must be ordered. Seniority, meaning the length of service a worker has accumulated in the bargaining unit, plays the central role. This article explains how that mechanism works, what happens when a worker exercises their "bumping" right, and when an employer can legally set seniority aside.

Why seniority is the cornerstone of layoffs

Seniority refers to the number of years, months, and days a person has worked for an employer, generally counted from their hiring date into the bargaining unit. It is recorded on a seniority list that the union and the employer maintain together.

In virtually every Quebec collective agreement, seniority is the primary criterion — and often the only one — that determines:

• the order of layoffs: workers with the least seniority go first;
• the order of recall: workers with the most seniority come back first;
• the right to "displace" a less senior colleague (bumping) in order to keep a job.

The logic is straightforward: it limits employer discretion and protects workers from arbitrary or discriminatory decisions. In other words, it is not the manager's personal preference that decides who stays — the list does.

Concrete example: Imagine your collective agreement says: "In the event of a layoff, employees shall be laid off in reverse order of seniority." If the employer needs to cut three positions in your department, the three workers with the least seniority receive layoff notices — regardless of their performance evaluations or exact job titles.

What your layoff notice must include

Before diving deeper into seniority rights, it is worth reviewing the employer's minimum notice obligations.

Statutory notice periods

Quebec's Act Respecting Labour Standards (ARLS, commonly called the LNT) requires written notice of termination or long-term layoff (lasting more than six months). The notice period scales with the worker's length of service:

For temporary layoffs of less than six months, the LNT does not require written notice — but your collective agreement often does, and may require more generous notice than the statute. Always check your agreement first.

Collective dismissal notice

When an employer lays off ten or more workers within any two-month period, the LNT requires a collective dismissal notice to the Minister of Labour, with advance notice periods reaching up to 16 weeks depending on the number of workers affected. This obligation stacks on top of whatever your collective agreement provides.

The order of layoffs: principles and variations

The basic rule: last in, first out

The classic rule — often called "LIFO" (last in, first out) — holds that the worker with the least seniority in the bargaining unit or in the affected department is laid off first.

Most agreements apply this principle within a specific department, job category, or job classification. This means a lab technician's seniority does not necessarily protect them from a layoff in the production department — unless the agreement explicitly says so.

Plant-wide vs. departmental seniority

Some agreements grant establishment-wide (or plant-wide) seniority that gives rights across the entire workplace, while others recognize only departmental or classification-based seniority. The scope of your protection depends entirely on how your agreement is worded.

Concrete example: Take Karima, who has 12 years with the company but only 2 years in her current department (she transferred two years ago). If the agreement protects only departmental seniority, Karima could be laid off before colleagues who have 4 or 5 years in that same department, even though she is one of the most senior workers plant-wide. If the agreement recognizes establishment-wide seniority, her situation looks very different.

Bumping: exercising your displacement right

Bumping (also called the right of displacement or supersession) is the mechanism by which a worker facing a layoff can "displace" a less senior worker in another position in order to keep their job.

How it works

1. The employer announces a layoff in a position or department.
2. The affected worker, if their agreement allows it, can exercise their bumping right against a position held by someone with less seniority.
3. To exercise this right, the worker generally must show they are capable of performing the work of the target position (with or without a short adaptation period, depending on the agreement).
4. The "bumped" worker can themselves exercise their own bumping right in a cascade — bumping someone else with even less seniority — sometimes called a "chain bump."

The limits of bumping

The bumping right is not unlimited. Collective agreements typically attach conditions to it:

• Minimum qualification or competency: the worker must be able to do the job (sometimes after a familiarization period of a few days to a few weeks).
• Time limit to exercise the right: the worker must signal their intention to bump within a set window after receiving notice (e.g., 48 hours, 5 business days).
• Geographic scope: in some agreements, bumping is limited to a single establishment; in others, it can extend across multiple sites.
• Direction of displacement: workers can generally bump into an equivalent or lower-level position, rarely into a higher one.

If your collective agreement is silent on bumping, Quebec grievance arbitrators generally do not recognize it automatically — there must be a clear textual basis in the agreement. This is one of the strongest reasons to read your agreement carefully.

When the employer can set seniority aside

Seniority rules the layoff process, but it has exceptions.

Competency as a secondary (or primary) criterion

Some agreements use a mixed formula: "In the event of a layoff, seniority shall govern provided the employees are relatively equal in ability." This gives the employer a narrow margin to retain a less senior worker if they hold a clearly superior and necessary competency.

A word of caution: the word "clearly" carries real weight. In arbitration, employers who invoke competency to override seniority must prove it concretely. A personal preference or a vague sense that someone "performs better" is generally not enough.

Key positions and negotiated exclusions

Collective agreements sometimes exclude certain positions or functions from automatic seniority-based layoff rules — for example, workers in specialized training, positions requiring specific certifications, or certain supervisory roles. These exclusions must be expressly written into the agreement to be valid.

Structural reorganizations and position eliminations

When an employer completely eliminates a position (rather than reducing headcount in an existing category), seniority rules apply differently. If the position no longer exists, there is no one in that classification to bump. The displaced worker may then attempt to bump into another classification — if the agreement allows it.

The order of recall

A temporary layoff is, by definition, meant to end at some point. When the employer is ready to call workers back, the recall order is generally the reverse of the layoff order: the most senior worker among those laid off comes back first.

What your agreement should spell out

A well-drafted recall article will specify:

• The notice period the employer must give (e.g., 48 hours, 5 days).
• The method of notice (phone call, email, registered mail).
• The response window the worker has to accept or decline.
• The consequences of refusal (loss of rights? end of layoff status? remaining on the list?).

Losing your recall rights

If a worker on layoff refuses a recall to a position matching their classification and seniority standing, the agreement will usually specify that they lose their right to a subsequent recall for that position — and sometimes their entire seniority. This is a critical moment: before refusing a recall, speak to your union rep.

The maximum duration of a temporary layoff

The LNT protects workers from a temporary layoff that drags on indefinitely. Under the Act, a layoff that exceeds six months is presumed to constitute a termination of employment, entitling the worker to severance notice. Your collective agreement may set a different (often shorter) threshold.

The grievance: your remedy when the order is not respected

A grievance is a formal complaint filed by the union (or sometimes directly by the worker, depending on the agreement) to challenge an employer decision that violates the collective agreement. If the employer does not follow the layoff or recall order set out in the agreement, the union can file a grievance.

When to file a grievance

• The employer laid off a more senior worker before a less senior one.
• The employer recalled a less senior worker before a more senior one.
• The employer refused to recognize a valid bumping right.
• The seniority list used by the employer is inaccurate or disputed.

Grievance deadlines: act fast

Collective agreements almost always include strict time limits for filing a grievance — often 15, 20, or 30 days after the worker becomes aware of the alleged violation. A grievance filed outside that window may be dismissed for that reason alone, even if it is well-founded. The moment you believe your rights have been violated, contact your union rep immediately.

Conclusion: read your agreement, talk to your union — and ask your questions on Konvention

A layoff is one of the most stressful events in any worker's professional life. The good news, in a unionized workplace, is that the rules are written in black and white in your collective agreement. It is not the employer's call alone to decide who goes and who stays — seniority protections, bumping rights, and recall timelines are all safeguards that your union representatives negotiated for you.

But those protections are only worth something if you know them and enforce them. A few habits to develop:

• Review your seniority list regularly and flag any errors to your union.
• Read the articles in your agreement that cover layoffs, bumping, and recall.
• Act quickly if you believe the order was not followed — grievance deadlines are short.
• Talk to your rep before accepting or refusing anything.

Have a question about a specific clause in your agreement? Not sure whether you have a bumping right, or how long you have to respond to a recall notice? Ask your question directly on Konvention — our tool helps you understand your rights based on the exact text of your own collective agreement.