The applicant union sought certification for a bargaining unit of security guards.
The employer argued that five individuals classified as site supervisors exercised managerial functions under section 1(3) of the Labour Relations Act and should be excluded.
The Board reviewed the duties of a representative site supervisor, finding that the vast majority of his time was spent performing the same duties as other security guards.
His supervisory functions were minimal, consisting mainly of scheduling and reporting incidents, without independent disciplinary or hiring authority.
The Board concluded the site supervisors functioned as lead hands rather than managers, and included them in the bargaining unit.
A final certificate was issued.