The applicant union brought applications before the Ontario Labour Relations Board.
The responding party employer raised a preliminary objection that its labour relations were governed by federal law, specifically the Canada Labour Code.
At a procedural hearing, the Board declined to entertain submissions regarding the production of documents by a non-party until the constitutional jurisdiction issue was resolved.
The Board directed the parties to prepare submissions for the next hearing on whether the Board has the authority to determine the jurisdictional question and, if so, whether it can continue with the applications.