Applicable obligations and conditions during a labour conflict

Have you been a victim of or witness to acts of intimidation during a labour conflict? Report the situation immediately to the CCQ’s Direction des enquêtes by calling 1 844 736-6746 (toll-free) or 514 736-6746 (Montréal and area) or by email

The Act Respecting Labour Relations, Vocational Training and Workforce Management in the Construction Industry (Act R-20) continues to apply even during a labour conflict (strike or lock-out) in one or more sectors of the industry.

When one of the parties exercises its right to strike or lock out, Act R-20 provides that employees cannot be kept from working nor employers from continuing their activities.

Workers must still hold a competency certificate, and employers must have a licence issued by the Régie du bâtiment.

Applicable working conditions

Under the Act, the common clauses of the collective agreements remain in effect during a labour conflict. These clauses concern:

    • Union security and union dues check-off
    • Union representation
    • Grievance procedure and resolution
    • Recourses in cases of disciplinary measures
    • Arbitration
    • The basic complementary social benefits plan

Other working conditions, including wage rates, work schedules, travel costs, contributions to the welding qualification and training funds (for employers only), paid statutory holidays, and obligatory annual vacations, depend on the sector targeted by the conflict.

  • In the institutional and commercial, industrial, and civil engineering and roadwork sectors, these working conditions are not maintained until a new collective agreement is concluded between the parties.
  • In the residential sector, the working conditions are maintained until a new collective agreement is concluded between the parties.

Regulatory obligations and monthly report

Regulatory obligations continue to apply during a labour conflict.

Therefore, employers are obliged to keep accounting records and transmit a monthly report. They must also continue to make deductions at source for the following items:

    • The CCQ levy due by the employer and the worker
    • Social benefits (basic contributions and premiums)
    • The contribution to the Fonds d’indemnisation des salariés de l’industrie de la construction
    • Union and employer dues

The CCQ’s activities

Even during a strike or lock-out, the CCQ continues to ensure compliance with the rules in force in the construction industry, including by conducting site visits.

All services offered by the CCQ are maintained.