Woelke & Romero Framing, Inc. v. National Labor Relations Board

In these consolidated cases, petitioners ask us to decide whether union signatory subcontracting clauses that are sought or negotiated in the context of a collective-bargaining relationship are protected by the construction industry proviso to §8(e) of the National Labor Relations Act (Act), 29 U. S. C. § 158(e). Such clauses bar subcontracting except to subcontractors who are signatories to agreements with particular unions. Petitioners also ask us to decide whether a union violates § 8(b)(4)(A) of the Act, 29 U. S. C. § 158 (b)(4)(A), when it pickets to obtain a lawful subcontracting clause.