In a supplementary decision regarding a grievance arbitration award, the parties disputed the calculation of interest on back wages.
The employer had issued a cheque for the award but marked it as full and final payment.
The grievor refused to cash it until the employer provided assurance that cashing it would not prejudice his right to claim additional compensation.
The grievor received this assurance on January 12, 1999, but still delayed cashing the cheque until June 17, 1999, and the union claimed interest for this period.
The Grievance Settlement Board held that the employer's liability for interest ceased on January 12, 1999, as the grievor's loss of the use of the money after that date was a result of his own unjustified decision not to cash the cheque, rather than any wrongful conduct by the employer.