The appellant union disputed an arbitrator's award regarding the calculation of vacation benefits for casual employees who became permanent.
The arbitrator concluded that time as a casual employee was not to be included.
On judicial review, the chambers judge found the arbitrator's reasons insufficient and unreasonable, but the Court of Appeal overturned this decision.
The Supreme Court of Canada dismissed the appeal, clarifying that under the Dunsmuir reasonableness standard, the adequacy of reasons is not a stand-alone basis for quashing a decision nor a question of procedural fairness.
Instead, reasons must be read together with the outcome to determine if the result falls within a range of possible, acceptable outcomes.
