Last week, the Tribunal administratif du travail (TAT) made a landmark ruling in the case to modernize union certifications at Hydro-Québec. This decision confirms that on-site workers, who were previously considered non-unionized, will now be represented by two major CUPE locals: the Syndicat des technologues d’Hydro-Québec (CUPE 957) and the Syndicat des employé(e)s de techniques professionnelles et de bureau d’Hydro-Québec (CUPE 2000). The ruling is an important step forward in the recognition of union rights for all workers in this Crown corporation.

In addition to on-site workers, a number of administrative employees historically not covered by the current certification will now be represented by CUPE 2000. This corrects long-standing inequity and strengthens union cohesion within Hydro-Québec.

CUPE commends TAT’s ruling, which recognizes the justification of the steps taken by Hydro-Québec’s unions to update their certifications.

“This ruling confirms that our modernization was not only legitimate,” said Mathieu Dumont, coordinator of CUPE’s Organizing Department, “it was necessary to ensure fairer access to collective bargaining. It is a strong step towards fairer representation for all workers at Hydro-Québec.”

In January 2025, CUPE 957, 1500, 2000 and 4250 filed applications with the TAT to modernize their certifications with the goal of better defending workers’ rights in a context of contracting out, privatization and structural changes at Hydro-Québec. Last week’s ruling applies only to CUPE 957 and 2000. The court requested further information regarding CUPE 1500 (the Syndicat des employé(e)s de métiers d’Hydro-Québec), but CUPE is optimistic that a similar conclusion will be reached. As for CUPE 4250 (Syndicat des spécialistes et professionnels d’Hydro-Québec), petitions have been filed concerning consultants the union considers to be employees in disguise. The case is still before the court.