National Labor Relations Board v. Plasterers' Local Union No. 79
Headline: Court rules employers are parties to union jurisdiction disputes and reverses lower court, allowing the Labor Board to decide work-assignment conflicts even when only the unions agreed to settle.
Holding: The Court held that employers are parties to work-assignment disputes under section 10(k), so the Labor Board may hear and decide such disputes and employers have a right to participate even when only the unions agreed to settle.
- Protects employers’ right to participate in Labor Board work-dispute hearings.
- Prevents unions alone from blocking Board decisions by private agreement.
- Keeps the Labor Board as the forum to decide live three-sided disputes.
Summary
Background
Two Houston subcontractors that install tile and terrazzo had contracts with a tile setters union but not with the plasterers union. The plasterers picketed job sites claiming that the work of applying a mortar coat under tile belonged to them. The dispute was submitted to a national Joint Board that awarded the work to the plasterers, but the two contractors and the tile setters refused to follow that award. The plasterers’ picketing led to consolidated unfair-labor-practice charges and a Labor Board hearing under a statute that requires the Board to decide which group is entitled to the work unless the parties have voluntarily agreed on a settlement method.
Reasoning
The Court examined whether an employer in this situation counts as a “party” to the dispute for purposes of the statute. The majority found that employers often have a real, practical stake in who does the work — affecting costs, contracts, and efficiency — and that nothing in the statute’s text or history plainly excludes them from participation. The Court rejected the idea that an agreement between the two unions alone necessarily bars the Board from deciding the dispute, distinguished situations where one union truly renounces a claim, and reversed the Court of Appeals’ ruling that had ousted the Board.
Real world impact
The decision preserves the Board’s power to resolve live, three-sided work-assignment disputes and protects employers’ right to join and defend their chosen work assignments. It limits the ability of unions to stop Board proceedings simply by privately agreeing to an arbitration method that excludes the employer, though a true union disclaimer of interest can still end a Board case.
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