Relief Drivers/Employees. (a) The Company shall maintain a list of at least ten (10) qualified and Company approved relief drivers (five (5) for Bank Base and five (5) for other contract work) and three (3) bikers to back up Bank Base or Contract runs resulting from approved or emergency, temporary leave. (Temporary leave is ordinarily defined as a short term leave such as medical or dental appointments, family leave, sick leave, or bereavement leave, but excludes vacation). The Unit Chairperson shall be provided with a list of all relief drivers and their contact information.