The applicant union applied for certification to represent employees working aboard the respondent's tugs in the Port of Hamilton.
The respondent challenged the Board's jurisdiction, arguing its operations fell under federal jurisdiction pursuant to the British North America Act's provisions on navigation and shipping.
The Board examined the respondent's operations, which included pushing a fuel barge, docking ships, and towing vessels extra-provincially.
The Board concluded that the respondent's tug boat operations were an integral part of or necessarily incidental to federal navigation and shipping undertakings.
Consequently, the Board found that the respondent's labour relations were governed by the Canada Labour Code rather than provincial legislation, and dismissed the application for lack of jurisdiction.