Massachusetts General Laws
Mass. Gen. Laws ch. 93B, § 3 (2026)
Unfair competition and practices
✓ text as last checked Sept. 2026 (this copy records no edition or section history)
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Section 3. (a) Unfair methods of competition and unfair or deceptive acts or practices, as defined in section 4, are hereby declared to be unlawful.
(b) In construing subsection (a) the courts may be guided by the interpretations of the Federal Trade Commission Act, 15 U.S.C. 45.
(c) The attorney general may make rules and regulations interpreting the subsection (a). The rules and regulations shall not be inconsistent with the rules, regulations and decisions of the Federal Trade Commission and the federal courts interpreting the Federal Trade Commission Act, 15 U.S.C. 45.
Notes of Decisions
Cited in 22
cases (4 in the last 5 years), 1975–2024 · leading case: Coady Corp. v. Toyota Motor Distributors, Inc., 346 F. Supp. 2d 225 (D. Mass. 2003).
Coady Corp. v. Toyota Motor Distributors, Inc., 346 F. Supp. 2d 225 (D. Mass. 2003). “” M.G.L. c. 93B, § 3(a). Section 4 of Chapter 93B explicitly, although not always helpfully, defines actions that fall within the prohibition of § 3(a).”
Massachusetts State Auto. Dealers Ass'n v. Tesla Motors MA, Inc., 15 N.E.3d 1152 (Mass. 2014). “” 3 The plaintiffs claimed that the defendants were in violation of G. L. c. 93B, §§ 3 (a) 4 and 4 (c) (10), 5 and were engaged in a civil conspiracy “to evade Massachusetts law and to *677 operate an automobile dealership without the required licenses.”
Ricky Smith Pontiac, Inc. v. Subaru of New England, Inc., 440 N.E.2d 29 (Mass. App. Ct. 1982). “The plaintiff (Ricky Smith) challenged the grant as an impermissible intrusion on its “relevant market area,” alleging that SNE had violated the plaintiff’s franchise agreement and had committed unfair and deceptive practices in violation of G. L. c. 93B, §§ 3 and 4. SNE…”
Cadillac/Oldsmobile/Nissan Ctr., Inc. v. Gen. Motors Corp., 391 F.3d 304 (1st Cir. 2004). “” Mass. Gen. Laws ch. 93B, § 3. These methods, acts, and practices are delineated in section 4.”
Wagner & Wagner Auto Sales, Inc. v. Land Rover North Am., Inc., 547 F.3d 38 (1st Cir. 2008). “The letter stated that the grounds for termination included Wagner’s failure to comply with the agreed upon deadlines under the 2004 LOI.”
Beard Motors, Inc. v. Toyota Motor Distributors, Inc., 480 N.E.2d 303 (Mass. 1985). “” G. L. c. 93B, § 3 (a) (1984 ed.). Unfair methods of competition and unfair or deceptive acts are defined in § 4 of the act, which provides in part: “There shall be no assignment, delegation or transfer of the franchise or management or control thereunder without the written…”
Tober Foreign Motors, Inc. v. Reiter Oldsmobile, Inc., 381 N.E.2d 908 (Mass. 1978). “The words used in 1970 were no less informing than the reference to "unfair methods of competition,” and so forth, contained in the Federal Trade Commission Act ( 15 U.”
Reiter Oldsmobile, Inc. v. Gen. Motors Corp., 393 N.E.2d 376 (Mass. 1979). “The complaint proceeded on the theory that the grant of a competitive motor vehicle franchise without the current franchisee’s prior approval violated G. L. c. 93B, §§ 3 and 4, and therefore was an unfair method of competition and an unfair or deceptive act or practice within…”
Coady Corp. v. Toyota Motor Distributors, Inc., 361 F.3d 50 (1st Cir. 2004). “Coady’s position at trial was that deliberately false reporting was widespread and known to Toyota. At trial, Coady claimed that Toyota’s tolerance of false reporting by its competitors violated chapter 93B.”
Boyle v. Int'l Truck & Engine Corp., 369 F.3d 9 (1st Cir. 2004). “Chapters 93A and 93B Boyle appeals to provisions in Chapters 93A and 93B to redress his loss of Navistar business.”
Foreign Auto Imp., Inc. v. Renault Ne., Inc., 326 N.E.2d 888 (Mass. 1975). “It is at least questionable whether the plaintiff can insist on the benefit of G. L. c. 93B, §§ 3 (a), 4 (3) (1), and at the same time ask a court to adjudicate a dispute which the statute mandates must be “submitted to final and binding arbitration,” and further to insist on .”
Richard Lundgren, Inc. v. Am. Honda Motor Co., 699 N.E.2d 11 (Mass. App. Ct. 1998). “Section 12A, thus, provides a dealer a right of action for damages in Superior Court for violation of G. L. c. 93B, §§ 3 through 11, and, ancillary to that right of action, if the dealer is successful, the right to recover legal fees.”
Mass. Gen. Laws ch. 93B, § 3(a): 7 cases
Coady Corp. v. Toyota Motor Distributors, Inc., 346 F. Supp. 2d 225 (D. Mass. 2003). “” M.G.L. c. 93B, § 3(a). Section 4 of Chapter 93B explicitly, although not always helpfully, defines actions that fall within the prohibition of § 3(a).”
Tober Foreign Motors, Inc. v. Reiter Oldsmobile, Inc., 381 N.E.2d 908 (Mass. 1978). “The words used in 1970 were no less informing than the reference to "unfair methods of competition,” and so forth, contained in the Federal Trade Commission Act ( 15 U.”
Cadillac/Oldsmobile/Nissan Ctr., Inc. v. Gen. Motors Corp., 391 F.3d 304 (1st Cir. 2004). “” Mass. Gen. Laws ch. 93B, § 3. These methods, acts, and practices are delineated in section 4.”
Bahig F. Bishay v. Am. Isuzu Motors, Inc., 404 F.3d 491 (1st Cir. 2005).
Am. Honda Motor Co. v. Bernardi's Inc., 113 F. Supp. 2d 58 (D. Mass. 1999).
Mass. Gen. Laws ch. 93B, § 3(a)(2001): 1 case
Coady Corp. v. Toyota Motor Distributors, Inc., 361 F.3d 50 (1st Cir. 2004). “Coady’s position at trial was that deliberately false reporting was widespread and known to Toyota. At trial, Coady claimed that Toyota’s tolerance of false reporting by its competitors violated chapter 93B.”
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