The Union filed a policy grievance alleging the Employer violated the collective agreement by assigning 'change-offs' to standby bus drivers at the sixth hour of their shift.
The Union argued that a change-off is a 'task' rather than a 'specific piece of work' and therefore cannot be assigned at the sixth hour.
The Arbitrator dismissed the grievance, finding that the collective agreement's broad definition of standby work, the historical practice of assigning change-offs to standby drivers, and the purpose of protecting service supported the Employer's right to make such assignments, provided the supervisor reasonably believes the work can be completed within the driver's remaining spread limit.