Good day,

With the signing of the new Collective Agreement, there have been important changes to how seniority is established and maintained within the APOC bargaining unit.

Seniority can sometimes be confusing, particularly when employees enter the Association from another bargaining unit, when several employees are appointed on the same day, or when employees leave and later return to the bargaining unit.

The following is intended to provide members with a straightforward explanation of how the system works and why seniority matters.

One Seniority List

One of the important changes negotiated in the new Collective Agreement is the movement to one APOC seniority list.

The significant date for this new rule is October 19, 2026.

Any employee entering the APOC bargaining unit on or after October 19, 2026 will fall under the new seniority provisions.

A joint APOC–Canada Post Seniority List Committee has also been established to review the seniority dates of APOC-represented employees using the definitions contained in the new Collective Agreement.

Once that review is completed, employees will be advised of their seniority date and will have an opportunity to request a review if they believe their date has been determined incorrectly.

How Is Seniority Acquired?

For employees appointed to an APOC bargaining-unit position on or after October 19, 2026, seniority begins with the employee’s latest date of indeterminate appointment into the APOC bargaining unit.

In simple terms, an employee entering APOC from another bargaining unit on or after October 19, 2026 does not bring the seniority accumulated in that other bargaining unit with them as their APOC seniority date.

Their APOC seniority begins when they receive their indeterminate appointment into an APOC position.

This change ensures that employees who are already members of the bargaining unit are protected from having someone enter the Association from another bargaining group and immediately move ahead of them based upon seniority accumulated elsewhere.

What About Existing Members?

Employees who entered the APOC bargaining unit before October 19, 2026 remain subject to the seniority provisions that applied to them under the historical language of Article 41.

The new one-list rule does not simply erase the seniority treatment that existing members accumulated under the previous system. The intent is to move forward with one seniority list while preserving the rights that had already been established before the new provisions took effect.

Why Seniority Matters

Seniority has practical value in a number of important areas under the Collective Agreement.

The most significant advantages include:

Staffing opportunities – seniority can determine priority in certain staffing processes and can become the deciding factor where qualified Association candidates are otherwise equal.
Bidding rights – seniority is used in certain bidding processes, including some OS1 staffing opportunities.
Job security – seniority can play an important role in surplus and displacement situations, including determining who may be affected first and who has stronger options to remain employed or move into available work.
Protection when leaving and returning to the bargaining unit – members can preserve their seniority rights when they temporarily leave the bargaining unit and return within the negotiated timeframe.
Protection during acting assignments outside the bargaining unit – members can continue to maintain and accumulate seniority during qualifying acting assignments.
Protection from leapfrogging – the new rules prevent employees entering APOC on or after October 19, 2026 from bringing seniority from another bargaining unit and moving ahead of existing APOC members on that basis.
Clear standing within the bargaining unit – seniority provides an objective order among members and helps reduce subjective decision-making where seniority is a determining factor.

This list is not intended to be all-inclusive, but it captures the main areas where seniority can have a meaningful impact on a member’s career and job security.

What Happens If I Leave the Bargaining Unit?

The new Collective Agreement also improves the protection available to members who leave the APOC bargaining unit for another position within Canada Post.

An employee who accepts a position outside the bargaining unit now has up to two years to return to the APOC bargaining unit and retain their seniority.

Previously, this protection was limited to twelve months.

This means that if you leave APOC for a position elsewhere in the Corporation, your existing APOC seniority can be preserved provided you return to the bargaining unit within the two-year period.

If you do not return within that period, your seniority protection is lost in accordance with Article 41.

What About Acting Assignments Outside the Bargaining Unit?

The same two-year period now applies where an employee is temporarily assigned on an acting basis outside the bargaining unit.

An employee on an acting assignment outside APOC for a period of less than two years will continue to maintain and accumulate seniority.

If the employee does not return to the bargaining unit within two years, the seniority protection provided under that provision is lost.

This gives members considerably more flexibility to accept developmental or acting opportunities outside the bargaining unit without immediately putting their APOC seniority at risk.

Does My Employee Number Determine My Seniority?

No.

This is an important distinction.

Your Canada Post employee number does not normally determine your seniority and it does not establish your seniority date.

The employee number is used only as the final tie-breaker when two or more employees remain tied after the other seniority provisions have been applied.

What Happens When Several Employees Are Appointed on the Same Day?

This is particularly important when Canada Post conducts a class or mass hiring process and several employees receive their APOC appointments on exactly the same date.

They do not simply remain tied.

The Collective Agreement establishes a sequence for determining their ranking.

First – Time in the APOC Bargaining Unit

Where two or more employees are appointed on the same date, their ranking is first determined by their total uninterrupted length of service in the APOC bargaining unit.

If one employee has previously accumulated greater uninterrupted service within APOC, that employee will rank ahead.

Second – Indeterminate Service with Canada Post

If the employees remain tied after looking at their uninterrupted APOC bargaining-unit service, the next consideration is their total uninterrupted service in an indeterminate position with Canada Post or its predecessor, the Post Office Department.

This is a tie-breaking mechanism. It does not change the employee’s APOC seniority date.

For example, two employees could both enter APOC on the same day. If one has longer uninterrupted indeterminate service with Canada Post, that service may determine which of the two ranks higher when their APOC seniority dates are otherwise identical.

Third – Corporate Employee Number

Only if the employees are still tied after the first two tests is the Canada Post employee number used.

At that point:

The employee with the lowest corporate employee number ranks highest.

The employee number is therefore the last step in resolving a tie — not the starting point for establishing seniority.

Example – A New APOC Class

Assume five employees are appointed to indeterminate APOC positions on the same day on or after October 19, 2026.

All five would initially have the same APOC seniority date.

Their order would then be determined by applying the Collective Agreement in sequence:

Compare their uninterrupted service in the APOC bargaining unit.

If they remain tied:

Compare their uninterrupted indeterminate service with Canada Post.

If they are still tied:

Use their corporate employee numbers, with the lowest employee number ranking highest.

This provides an objective method of ranking employees even where an entire class enters the bargaining unit on the same day.

A Simple Way to Remember It

For employees entering APOC on or after October 19, 2026:

APOC appointment date establishes your seniority.

If several employees have the same date:

APOC service first → Canada Post indeterminate service second → employee number last.

If you leave the bargaining unit:

You have up to two years to return and retain your seniority protection.

The employee number does not replace seniority and does not allow an employee to carry seniority from another bargaining unit into APOC. It simply provides the final method of breaking a tie when everything else is equal.

Reviewing Your Seniority Date

As part of the implementation of the new Collective Agreement, the joint Seniority List Committee will review the seniority dates of APOC-represented employees.

Employees will be advised in writing of the seniority date determined for them.

If an employee believes that date has been incorrectly determined, they will have one month from receiving that notification to request a review by the Committee.

Members should therefore pay particular attention when they receive their seniority notification and raise any concerns within the required timeframe.

The move to one seniority list represents a significant change, but the objective is straightforward: establish a transparent system that recognizes seniority within our bargaining unit, protects existing members and provides clear rules for determining the ranking of employees entering APOC in the future.

Thanks,

Rick Williams, National President

Good day,

With the signing of the new Collective Agreement, there have been important changes to how seniority is established and maintained within the APOC bargaining unit.

Seniority can sometimes be confusing, particularly when employees enter the Association from another bargaining unit, when several employees are appointed on the same day, or when employees leave and later return to the bargaining unit.

The following is intended to provide members with a straightforward explanation of how the system works and why seniority matters.

One Seniority List

One of the important changes negotiated in the new Collective Agreement is the movement to one APOC seniority list.

The significant date for this new rule is October 19, 2026.

Any employee entering the APOC bargaining unit on or after October 19, 2026 will fall under the new seniority provisions.

A joint APOC–Canada Post Seniority List Committee has also been established to review the seniority dates of APOC-represented employees using the definitions contained in the new Collective Agreement.

Once that review is completed, employees will be advised of their seniority date and will have an opportunity to request a review if they believe their date has been determined incorrectly.

How Is Seniority Acquired?

For employees appointed to an APOC bargaining-unit position on or after October 19, 2026, seniority begins with the employee’s latest date of indeterminate appointment into the APOC bargaining unit.

In simple terms, an employee entering APOC from another bargaining unit on or after October 19, 2026 does not bring the seniority accumulated in that other bargaining unit with them as their APOC seniority date.

Their APOC seniority begins when they receive their indeterminate appointment into an APOC position.

This change ensures that employees who are already members of the bargaining unit are protected from having someone enter the Association from another bargaining group and immediately move ahead of them based upon seniority accumulated elsewhere.

What About Existing Members?

Employees who entered the APOC bargaining unit before October 19, 2026 remain subject to the seniority provisions that applied to them under the historical language of Article 41.

The new one-list rule does not simply erase the seniority treatment that existing members accumulated under the previous system. The intent is to move forward with one seniority list while preserving the rights that had already been established before the new provisions took effect.

Why Seniority Matters

Seniority has practical value in a number of important areas under the Collective Agreement.

The most significant advantages include:

Staffing opportunities – seniority can determine priority in certain staffing processes and can become the deciding factor where qualified Association candidates are otherwise equal.

Bidding rights – seniority is used in certain bidding processes, including some OS1 staffing opportunities.

Job security – seniority can play an important role in surplus and displacement situations, including determining who may be affected first and who has stronger options to remain employed or move into available work.

Protection when leaving and returning to the bargaining unit – members can preserve their seniority rights when they temporarily leave the bargaining unit and return within the negotiated timeframe.

Protection during acting assignments outside the bargaining unit – members can continue to maintain and accumulate seniority during qualifying acting assignments.

Protection from leapfrogging – the new rules prevent employees entering APOC on or after October 19, 2026 from bringing seniority from another bargaining unit and moving ahead of existing APOC members on that basis.

Clear standing within the bargaining unit – seniority provides an objective order among members and helps reduce subjective decision-making where seniority is a determining factor.

This list is not intended to be all-inclusive, but it captures the main areas where seniority can have a meaningful impact on a member’s career and job security.

What Happens If I Leave the Bargaining Unit?

The new Collective Agreement also improves the protection available to members who leave the APOC bargaining unit for another position within Canada Post.

An employee who accepts a position outside the bargaining unit now has up to two years to return to the APOC bargaining unit and retain their seniority.

Previously, this protection was limited to twelve months.

This means that if you leave APOC for a position elsewhere in the Corporation, your existing APOC seniority can be preserved provided you return to the bargaining unit within the two-year period.

If you do not return within that period, your seniority protection is lost in accordance with Article 41.

What About Acting Assignments Outside the Bargaining Unit?

The same two-year period now applies where an employee is temporarily assigned on an acting basis outside the bargaining unit.

An employee on an acting assignment outside APOC for a period of less than two years will continue to maintain and accumulate seniority.

If the employee does not return to the bargaining unit within two years, the seniority protection provided under that provision is lost.

This gives members considerably more flexibility to accept developmental or acting opportunities outside the bargaining unit without immediately putting their APOC seniority at risk.

Does My Employee Number Determine My Seniority?

No.

This is an important distinction.

Your Canada Post employee number does not normally determine your seniority and it does not establish your seniority date.

The employee number is used only as the final tie-breaker when two or more employees remain tied after the other seniority provisions have been applied.

What Happens When Several Employees Are Appointed on the Same Day?

This is particularly important when Canada Post conducts a class or mass hiring process and several employees receive their APOC appointments on exactly the same date.

They do not simply remain tied.

The Collective Agreement establishes a sequence for determining their ranking.

First – Time in the APOC Bargaining Unit

Where two or more employees are appointed on the same date, their ranking is first determined by their total uninterrupted length of service in the APOC bargaining unit.

If one employee has previously accumulated greater uninterrupted service within APOC, that employee will rank ahead.

Second – Indeterminate Service with Canada Post

If the employees remain tied after looking at their uninterrupted APOC bargaining-unit service, the next consideration is their total uninterrupted service in an indeterminate position with Canada Post or its predecessor, the Post Office Department.

This is a tie-breaking mechanism. It does not change the employee’s APOC seniority date.

For example, two employees could both enter APOC on the same day. If one has longer uninterrupted indeterminate service with Canada Post, that service may determine which of the two ranks higher when their APOC seniority dates are otherwise identical.

Third – Corporate Employee Number

Only if the employees are still tied after the first two tests is the Canada Post employee number used.

At that point:

The employee with the lowest corporate employee number ranks highest.

The employee number is therefore the last step in resolving a tie — not the starting point for establishing seniority.

Example – A New APOC Class

Assume five employees are appointed to indeterminate APOC positions on the same day on or after October 19, 2026.

All five would initially have the same APOC seniority date.

Their order would then be determined by applying the Collective Agreement in sequence:

Compare their uninterrupted service in the APOC bargaining unit.

If they remain tied:

Compare their uninterrupted indeterminate service with Canada Post.

If they are still tied:

Use their corporate employee numbers, with the lowest employee number ranking highest.

This provides an objective method of ranking employees even where an entire class enters the bargaining unit on the same day.

A Simple Way to Remember It

For employees entering APOC on or after October 19, 2026:

APOC appointment date establishes your seniority.

If several employees have the same date:

APOC service first → Canada Post indeterminate service second → employee number last.

If you leave the bargaining unit:

You have up to two years to return and retain your seniority protection.

The employee number does not replace seniority and does not allow an employee to carry seniority from another bargaining unit into APOC. It simply provides the final method of breaking a tie when everything else is equal.

Reviewing Your Seniority Date