Massachusetts General Laws

Mass. Gen. Laws ch. 150A, § 4B (2026)

Refusal to bargain collectively with employer

✓ current as of July 2026

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Section 4B. It shall be an unfair labor practice for a labor organization to refuse to bargain collectively with any employer who has recognized it as the exclusive representative of employees in a unit appropriate for the purposes of collective bargaining.

Notes of Decisions

Cited in 3 cases, 1982–1990 · leading case: Sch. Comm. v. United Steelworkers of Am., Local 8751, 557 N.E.2d 51 (Mass. App. Ct. 1990).

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Sch. Comm. v. United Steelworkers of Am., Local 8751, 557 N.E.2d 51 (Mass. App. Ct. 1990). “We note also that the union acted outside the scope of its collective bargaining agreement with the employer and entered into the arbitration agreement with the committee to whom it owed neither contractual nor statutory obligations, see G. L. c. 150A, § 4B, omitting, meanwhile,…”

Diluzio v. United Elec., Radio & Mach. Wkrs. of Am., 435 N.E.2d 1027 (Mass. 1982). “150A, § 4A (unfair labor practices by "labor organizations"); G.L.c. 150A, § 4B ("labor organization" commits unfair labor practice by refusing to bargain collectively); G.”

DiLuzio v. United Elec., Radio & Mach. Workers of Am., 435 N.E.2d 1027 (Mass. 1982). “150A, § 4A (unfair labor practices by “labor organizations”); G. L. c. 150A, § 4B (“labor organization” commits unfair labor practice by refusing to bargain collectively); G.”

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