International Brotherhood of Teamsters, Local 519 v. United Parcel Service, Inc.

OPINION

MOORE, Circuit Judge.

Plaintiff-Appellant International Brotherhood of Teamsters, Local 519 (“Local 519”), brought a grievance against United Parcel Service, Inc. (“UPS”), alleging that UPS unjustly discharged Thomas Loftis (“Loftis”). The arbitrator issued an award in favor of UPS, finding that because Lof-tis verbally threatened another employee in violation of UPS’s zero-tolerance policy, UPS had just cause to terminate Loftis’s employment without notice under the collective bargaining agreements governing the relationship between UPS and Local 519.

Local 519 filed a complaint in…