Arbitrator Did Not Exceed Authority by Holding Agency Decision Precluded Arbitrating Union Grievance: Second Circuit | Practical Law
In American Postal Workers Union v. U.S. Postal Service, the US Court of Appeals for the Second Circuit reversed a district court judgment vacating an arbitral award because an arbitrator exceeded his authority under the collective bargaining agreement (CBA). The Second Circuit held that the arbitrator had authority to interpret the CBA, including to apply the doctrine of collateral estoppel to preclude arbitration on grievance claims under the CBA allegedly litigated by the grievant in prior federal agency proceedings. Nothing in the CBA specifically foreclosed the arbitrator from reaching that conclusion and the district court should not have vacated the decision simply because it disagreed with the arbitrator's CBA interpretation.