Dist. Ct. did not err in granting defendant-union’s motion to confirm arbitrator’s decision that had overturned plaintiff-employer’s termination of employee based on employee’s violation of OSHA safety rule. Arbitrator acted within his authority to interpret collective bargaining agreement when finding that violation of instant safety rule did not require that said employee be terminated and that plaintiff’s termination lacked “good cause” in view of employee’s past good record. Moreover, arbitrator could impose lesser sanction of 6-month suspension even though arbitrator agreed with employer that employee had violated safety rule.