Boys Markets, Inc., a supermarket chain, and Retail Clerks Union, Local 770, were parties to a collective-bargaining agreement (CBA) containing (1) a mandatory grievance and binding arbitration procedure for disputes arising under the contract and (2) a broad no-strike clause. A dispute arose between the parties during the life of the CBA, and the union threatened strike activity and engaged in picketing over a matter the employer contended was subject to the agreement's grievance-arbitration provisions. Rather than channeling the dispute to arbitration, the union sought to exert economic pressure. Invoking §301 of the Labor Management Relations Act (LMRA), Boys Markets filed suit in federal district court for injunctive relief to restrain the strike and compel arbitration. The district court issued a preliminary injunction enjoining the strike pending arbitration. On appeal, the Ninth Circuit reversed, relying on the Norris–LaGuardia Act's general prohibition against labor injunctions and Sinclair Refining's holding that such injunctions were unavailable even when a union violated a no-strike clause tied to arbitration. The Supreme Court granted certiorari to resolve the conflict between Norris–LaGuardia and §301 in the context of strikes over arbitrable disputes.
Whether a federal court, consistent with the Norris–LaGuardia Act, may enjoin a strike that violates a no-strike clause when the underlying dispute is subject to mandatory arbitration under a collective-bargaining agreement, pursuant to §301 of the LMRA.
Federal courts may issue a narrowly tailored injunction to restrain strike activity that breaches a no-strike clause where (1) the collective-bargaining agreement contains a mandatory grievance-arbitration provision, (2) the strike is over a dispute that the parties are contractually bound to arbitrate (i.e., the dispute is at least arguably arbitrable), (3) the employer is willing to arbitrate and is not in default of its contractual obligations, and (4) traditional equitable principles, including the specific findings required by §7 of the Norris–LaGuardia Act (e.g., irreparable injury, inadequate remedy at law, balance of hardships, and inability of public authorities to protect the property), are satisfied. To the extent inconsistent, Sinclair Refining Co. v. Atkinson is overruled.
Yes. A federal court may enjoin a strike in violation of a no-strike clause when the underlying dispute is subject to binding arbitration under the CBA, provided the court makes the requisite equitable and statutory findings and conditions relief on the parties' submission of the dispute to arbitration.
The Court began by recognizing two powerful, competing congressional policies: the Norris–LaGuardia Act's (1932) general prohibition on labor injunctions and the LMRA's (particularly §301) commitment to the enforcement of collective-bargaining agreements and the promotion of arbitration as the primary means of resolving labor disputes. After Sinclair, which had read Norris–LaGuardia to bar injunctions even when strikes violated a no-strike clause, the Court's later labor-arbitration jurisprudence—the Steelworkers Trilogy (American Manufacturing, Warrior & Gulf, Enterprise Wheel) and Lincoln Mills—significantly strengthened the federal policy favoring arbitration. Against that backdrop, the Court concluded that an absolute ban on injunctions frustrated the parties' bargain: a union's no-strike promise is the quid pro quo for the employer's agreement to arbitrate, and allowing strikes to proceed over arbitrable grievances would render the arbitral process ineffective. To harmonize the statutes, the Court construed §301 to permit specific enforcement of the agreement to arbitrate by maintaining the status quo through a narrow injunction—one tethered to preserving arbitration rather than adjudicating the merits of the labor dispute. The Court emphasized several limiting principles to respect Norris–LaGuardia: the dispute must be one the parties agreed to arbitrate; the employer must be ready and willing to arbitrate; and the district court must make the traditional equitable findings, including those codified in §7 of Norris–LaGuardia. The injunction should be closely tailored to prevent frustration of arbitration and should not intrude on the merits of the underlying grievance. With these constraints, the Court held that a limited labor injunction does not contravene Norris–LaGuardia and is necessary to effectuate the federal policy in favor of arbitration under §301. In so holding, the Court expressly overruled Sinclair to the extent it prohibited such injunctions even in arbitrable, contractually governed disputes.
Boys Markets is the foundation for the so-called "Boys Markets injunction," a narrow but critical exception to the Norris–LaGuardia Act that enables courts to preserve the parties' arbitral bargain by halting strikes over arbitrable grievances. It operationalizes the no-strike/arbitration exchange central to collective bargaining and ensures that arbitration remains the primary method of dispute resolution in unionized workplaces. For law students, the case illustrates statutory reconciliation, the interplay between federal labor policy and equitable remedies, and the judicial role in policing the boundaries of labor arbitration. Its limits are equally important: later cases, notably Buffalo Forge Co. v. United Steelworkers (1976), constrain Boys Markets by forbidding injunctions where the strike concerns a dispute not subject to arbitration (e.g., a sympathy strike) and by preventing courts from reaching the merits of the underlying grievance at the injunction stage. Other decisions, such as Gateway Coal Co. v. UMW (1974), apply Boys Markets to different contexts, reinforcing that the doctrine exists to protect the arbitral forum, not to expand general labor injunctions.
Boys Markets reshaped labor injunction practice by reconciling the Norris–LaGuardia Act with §301 of the LMRA. It enables federal courts to safeguard the parties' bargained-for arbitration mechanism by enjoining strikes over arbitrable grievances when traditional equitable requirements are satisfied. This narrow but vital remedy preserves the integrity of the no-strike/arbitration exchange and keeps the merits of labor disputes where the parties agreed they belong: in arbitration.