Can I Sue for a Defective Product in Massachusetts?

Yes, and the route is stranger than in almost any other state. Massachusetts never adopted strict product liability. The Supreme Judicial Court declined it outright in 1978 and has left it declined ever since, which means there is no free-standing tort claim here for selling a dangerous product. What Massachusetts has instead is a sales-contract promise, the implied warranty of merchantability in M.G.L. c. 106, sec. 2-314, which the Legislature rebuilt until it does the same work under a different name. That detour matters for a practical reason most people never hear: because the claim is a warranty claim rather than a negligence claim, the comparative negligence statute that trims most Massachusetts injury recoveries does not reduce it at all. To talk through a specific situation, the Jim Glaser Law line at (617) JIM-WINS is answered 24 hours a day, and the first telephone consultation is offered without charge.

The Doctrine Massachusetts Refused, and Why It Barely Matters

Most states adopted section 402A of the Restatement (Second) of Torts, which makes a seller liable for a product sold in a defective condition unreasonably dangerous to the user, full stop, without proof that anybody was careless. Massachusetts was asked to do the same thing in 1978 and said no. In Swartz v. General Motors Corp., 375 Mass. 628 (1978), the court held that there is no strict liability in tort in Massachusetts “apart from liability for breach of warranty under the Uniform Commercial Code, G. L. c. 106, secs. 2-314 - 2-318.”

Read on its own, that sentence sounds like bad news for an injured person. It is not, and the companion case decided the same day explains why. In Back v. Wickes Corp., 375 Mass. 633 (1978), the court explained that the Legislature “has jettisoned many of the doctrinal encumbrances of the law of sales, and what remains is a very different theory of recovery from that traditionally associated with the sale of goods.” Then it said the thing that has governed this area for nearly fifty years: “The Legislature has made the Massachusetts law of warranty congruent in nearly all respects with the principles expressed in Restatement (Second) of Torts sec. 402A (1965).”

So the answer to whether Massachusetts has strict product liability is no in name and close to yes in substance. The label on the claim is breach of warranty. The proof is about the product, not about anyone’s carelessness. And in one specific respect covered further down, the Massachusetts version is more favorable to an injured person than the strict liability rule it declined to adopt.

One guardrail belongs here rather than at the end. Back also said, in terms, that “Warranty liability is not absolute liability”. A manufacturer does not insure against every injury involving its product. There has to be a defect, and the defect has to have caused the harm.

What the Warranty Actually Promises

Section 2-314 attaches a promise to a sale automatically whenever the seller is “a merchant with respect to goods of that kind”. Nobody has to negotiate for it and nobody has to sign anything. The statute lists what merchantable goods must be, and the clause that carries almost every injury case is subsection (2)(c): the goods must be “fit for the ordinary purposes for which such goods are used.”

That phrase is doing more work than it looks like. Back held that the “ordinary purposes” the statute contemplates “include both those uses which the manufacturer intended and those which are reasonably foreseeable.” A ladder is not used only the way the instruction sheet imagines. A machine guard is not removed only by people the designer approved of. If a use is foreseeable, the product has to be safe for it.

The same sentence sets the outer boundary, and it is a real one: “Clearly, a defendant is not liable for the consequences of the unforeseeable misuse of a product.” That limit is not an affirmative defense the manufacturer raises. As the court put it later in Correia, it “is most properly analyzed as an element of the plaintiff’s case, since he must prove that his injury was caused by a defect making the product unfit for its ordinary use.”

Massachusetts law recognizes the same three families of defect that product cases everywhere turn on. A manufacturing defect is a product that came out wrong compared to the design its own maker drew. A design defect is a product built exactly as intended, where the intention was the problem. A warning defect is a product that is fine in the hand and dangerous in the dark, because the risk was never disclosed. The first is usually the simplest to prove and the rarest. The second and third are where most contested cases live.

Design Defect: the Balance the Jury Is Asked to Strike

A design case asks a jury to second-guess an engineering decision, so the court gave it a framework. Back instructs that in evaluating a design the jury should consider, among other factors, “the gravity of the danger posed by the challenged design, the likelihood that such danger would occur, the mechanical feasibility of a safer alternative design, the financial cost of an improved design, and the adverse consequences to the product and to the consumer that would result from an alternative design.”

Two things about that list are worth an injured person’s attention. The first is that “the mechanical feasibility of a safer alternative design” sits in the middle of it, which is why serious design cases are built around an alternative that existed and was not used, rather than around the accident alone. The second is what the court said about the exercise: “In balancing all the pertinent factors, the jury made a judgment as to the social acceptability of the design, and this is the same judgment originally made by the designer of the product.”

There is a related point that catches people off guard. Back rejected the argument that a jury may not weigh industry custom, and it refused to hold that conformity with industry practice settles the question. Everyone in an industry building a product the same unsafe way is evidence, not a defense.

The Warning Rule Changed in 1998, and Most Articles Still Have It Wrong

This is the part of Massachusetts product law where secondhand summaries are most likely to be stale, so it is worth stating precisely.

For years Massachusetts was an outlier. The old rule presumed a manufacturer knew every risk its product carried, whether or not the risk was knowable when the product was sold, which the court itself described as amounting to “strict liability for failure to warn of these risks.” The court acknowledged plainly that this put Massachusetts “among a distinct minority of States that applies a hindsight analysis to the duty to warn.”

In Vassallo v. Baxter Healthcare Corp., 428 Mass. 1 (1998), the court changed it. The holding is the operative law today: “we hereby revise our law to state that a defendant will not be held liable under an implied warranty of merchantability for failure to warn or provide instructions about risks that were not reasonably foreseeable at the time of sale or could not have been discovered by way of reasonable testing prior to marketing the product.”

Two sentences follow it that do most of the practical work, and they cut toward the injured person. First, on how much the manufacturer is charged with knowing: “A manufacturer will be held to the standard of knowledge of an expert in the appropriate field”. That is not what the company actually knew. It is what a genuine expert in that field would have known, which is why the testing a manufacturer chose not to run is often the center of a warning case. Second, on time: the manufacturer “will remain subject to a continuing duty to warn (at least purchasers) of risks discovered following the sale of the product at issue.” The duty does not end when the box leaves the warehouse. A risk learned about in year three is still a risk the maker has to do something about.

So the modern question in a Massachusetts warning case is not whether the company happened to know. It is whether a competent expert in the field would have foreseen the risk, or whether reasonable testing before marketing would have surfaced it, and then whether anything was done once it was known.

You Do Not Have to Have Bought It

The oldest obstacle in warranty law was privity: a promise in a sales contract belonged to the buyer, so a person who never bought anything had nobody to sue. Massachusetts deleted that obstacle by statute, and M.G.L. c. 106, sec. 2-318 is unusually direct about it.

“Lack of privity between plaintiff and defendant shall be no defense in any action brought against the manufacturer, seller, lessor or supplier of goods to recover damages for breach of warranty, express or implied, or for negligence, although the plaintiff did not purchase the goods from the defendant if the plaintiff was a person whom the manufacturer, seller, lessor or supplier might reasonably have expected to use, consume or be affected by the goods.”

Notice how wide the last clause is. It is not limited to the purchaser, or the purchaser’s household, or even to the person using the product. Someone the seller “might reasonably have expected to use, consume or be affected by the goods” is covered, which is the statutory basis for a claim by a person who was standing nearby when something failed. The statute never uses the word bystander; it describes the situation instead.

Two more sentences in the same section matter after an injury. “The manufacturer, seller, lessor or supplier may not exclude or limit the operation of this section”, so the privity rule cannot be written back in by contract. And on the notice problem: “Failure to give notice shall not bar recovery under this section unless the defendant proves that he was prejudiced thereby.”

That last one deserves emphasis because the general rule elsewhere in the sales chapter is far harsher. Under M.G.L. c. 106, sec. 2-607(3)(a), a buyer “must within a reasonable time after he discovers or should have discovered any breach notify the seller of breach or be barred from any remedy”. Barred, with no showing of harm required. Section 2-318 flips the burden for the personal injury claim and puts it on the defendant to prove prejudice. None of which is a reason to sit on a claim, since evidence of prejudice gets easier for a defendant to assemble the longer a product sits unpreserved.

The Rule That Surprises Everyone: Your Own Carelessness Does Not Cut the Recovery

Massachusetts is a modified comparative negligence state. In an ordinary injury case, a plaintiff found partly at fault has the award reduced by that percentage and recovers nothing at all once the share passes the other side’s, which is the rule set out in how partial fault affects a Massachusetts claim. Nearly every injury claim in the Commonwealth is valued against that arithmetic.

It does not apply to a warranty claim. In Correia v. Firestone Tire & Rubber Co., 388 Mass. 342 (1983), the federal court certified the question directly: “Does Massachusetts recognize contributory or comparative negligence or fault as a full or partial defense to an action for personal injury or wrongful death based on breach of warranty?” The Supreme Judicial Court answered, “No.”

The reasoning is worth understanding, because it explains why the rule has survived four decades of pressure to change it. Adopting comparative fault in warranty cases, the court said, “would be to meld improperly the theory of negligence with the theory of warranty as expressed in G. L. c. 106, secs. 2-314 - 2-318, and thereby to undercut the policies supporting these statutes.” Negligence law presumes people should look after themselves. Warranty law makes a different bargain: it puts the risk of a defective product on the party that put the product into the world. Mixing them dissolves the bargain. The court also noted the narrower textual point that “Since G. L. c. 231, sec. 85, is limited to actions in negligence, it would not apply here to diminish damages for a product user found to be contributorily negligent in the manner described.”

The One Exception, and It Is Not a Discount

Honesty about this matters more than the headline does, because the exception is severe. There is a single category of plaintiff conduct that defeats a Massachusetts warranty claim, and when it applies it does not shave a percentage off the recovery. It ends the claim.

The court stated it this way: “we conclude that the plaintiff in a warranty action under G. L. c. 106, sec. 2-314, may not recover if it is found that, after discovering the product’s defect and being made aware of its danger, he nevertheless proceeded unreasonably to make use of the product and was injured by it. No recovery by the plaintiff shall be diminished on account of any other conduct which might be deemed contributorily negligent.”

Read the conditions carefully. The user has to have discovered the defect, been made aware of its danger, and then gone on using the product unreasonably anyway. All of it has to be true. A person who never knew, or who knew something was off without appreciating the danger, or who had no practical alternative, is not in this category. And the court was careful about what is happening doctrinally: “the user is denied recovery, not because of his contributory negligence or his assumption of the risk but rather because his conduct is the proximate cause of his injuries.”

The practical shape of a Massachusetts product case follows from those two rules together. The defense usually cannot chip away at the recovery with ordinary carelessness, so it pushes hard on the total bar instead, which is why what the injured person knew about the defect before the injury becomes such contested ground. Complaints made to a supervisor, a manual that was never provided, a warning label that had worn off, and a machine that had been failing quietly for months all matter more than they would in a car case.

The Disclaimer in the Box Does Not Reach an Injury Claim

Every product arrives with paperwork limiting the manufacturer’s warranty. In Massachusetts that paperwork has a hard ceiling, and it is statutory.

M.G.L. c. 106, sec. 2-316A(4) provides that any language “which attempts to exclude or modify any implied warranties of merchantability and fitness for a particular purpose or to exclude or modify remedies for breach of those warranties, shall be unenforceable with respect to injury to the person.” Not disfavored. Unenforceable. And subsection (5) closes the obvious workaround: “The provisions of this section may not be disclaimed or waived by agreement.”

The section is broader still for consumer goods. Subsection (2) makes any attempt by a seller or manufacturer of consumer goods and services to exclude the implied warranties, or to limit the consumer’s remedies for breaching them, unenforceable regardless of whether anyone was hurt.

There is a carve-out worth naming honestly rather than hiding. The rest of subsection (4) preserves risk-allocation and indemnity agreements between a seller or manufacturer and “a buyer that is an organization”, so two businesses can still allocate this risk between themselves by contract. That does not reach the injured person’s claim; it governs who ultimately absorbs the loss as between the companies.

How Long You Have, and the Question Nobody Has Answered

Treat this as three years and do not wait, because the safest reading and the ordinary reading agree on the number.

M.G.L. c. 260, sec. 2A is the general tort deadline: “actions of tort, actions of contract to recover for personal injuries, and actions of replevin, shall be commenced only within three years next after the cause of action accrues.” That is the same clock covered in the Massachusetts personal injury statute of limitations.

Section 2-318 carries its own, in its last sentence: “All actions under this section shall be commenced within three years next after the date the injury and damage occurs.”

Three years either way, so nothing turns on the number. What differs is the trigger. Section 2A runs from when the cause of action accrues, and accrual is the concept that carries the discovery rule for injuries that are not apparent when they happen. Section 2-318 is written from “the date the injury and damage occurs”. Nothing read for this article resolves how those two interact for a product injury that is not discovered until years later, and that gap is real rather than academic in toxic exposure and medical device cases. This article states the difference and does not guess at the answer. If an injury may have been caused by a product and any meaningful time has passed, the deadline question is the first thing to put in front of a lawyer, not the last.

What Actually Builds One of These Cases

The single most valuable thing a family can do has nothing to do with law. Keep the product. Keep it in the condition it was in, with the broken part attached, the packaging if it still exists, the manual, the receipt and the model and serial numbers. A defect case is proved through the object itself, usually by an engineer who examines it, and a product that has been repaired, scrapped or returned to the seller for a refund can take an otherwise strong claim with it.

Photograph everything before anything moves, including the scene and the injuries. Write down who else was present and what the product was being used for at the moment it failed. Preserve any recall notice, safety bulletin or manufacturer letter, and any complaint anyone made about the product before the injury, because a continuing duty to warn under Vassallo turns on what the company learned and when.

Two practical notes on where these claims tend to arise. If the injury happened at work, a defective machine or tool usually creates a claim against the equipment’s manufacturer that runs alongside the workers compensation case rather than instead of it, and the interaction between the two systems is set out in Massachusetts workers compensation attorney fees and how long workers compensation lasts. If the product failure caused a death, the claim runs through the wrongful death statute and its own procedure, described in Massachusetts wrongful death claims.

Finally, be prepared for how these cases are valued and paid. Serious product injuries are often catastrophic ones, and the way Massachusetts values them is covered in what an injury case is worth, with the specific patterns for the most severe outcomes in spinal cord injury claims and traumatic brain injury claims. What comes out of a settlement before the client sees it is covered in who gets paid out of a Massachusetts injury settlement, and how fees work is covered in what Massachusetts personal injury lawyers charge. One modern caution applies here as much as anywhere: what gets posted about the injury and the product tends to arrive in the defense file, as explained in social media and a Massachusetts injury claim. The firm’s general approach to these matters is described on the personal injury practice page.

Frequently Asked Questions

Q: Does Massachusetts have strict product liability?

A: No, not by that name. In Swartz v. General Motors Corp., 375 Mass. 628 (1978), the Supreme Judicial Court held that there is no strict liability in tort in Massachusetts “apart from liability for breach of warranty under the Uniform Commercial Code, G. L. c. 106, secs. 2-314 - 2-318.” The claim runs through the implied warranty of merchantability instead. In practice the difference is smaller than it sounds, because Back v. Wickes Corp., 375 Mass. 633 (1978) held that “The Legislature has made the Massachusetts law of warranty congruent in nearly all respects with the principles expressed in Restatement (Second) of Torts sec. 402A (1965).”

Q: Do I have to have bought the product myself to sue?

A: No. M.G.L. c. 106, sec. 2-318 states that “Lack of privity between plaintiff and defendant shall be no defense” in an action against the manufacturer, seller, lessor or supplier, so long as the injured person is someone the seller “might reasonably have expected to use, consume or be affected by the goods”. That language reaches a borrower, a family member, an employee using an employer’s equipment and a person who was simply nearby when the product failed. The statute also provides that the seller “may not exclude or limit the operation of this section.”

Q: Will my own carelessness reduce what I recover in a Massachusetts product case?

A: Generally no, which is the opposite of the rule in almost every other kind of injury claim here. In Correia v. Firestone Tire & Rubber Co., 388 Mass. 342 (1983), the Supreme Judicial Court was asked whether Massachusetts recognizes “contributory or comparative negligence or fault as a full or partial defense to an action for personal injury or wrongful death based on breach of warranty” and answered, “No.” The court explained that “Since G. L. c. 231, sec. 85, is limited to actions in negligence, it would not apply here to diminish damages for a product user found to be contributorily negligent in the manner described.”

Q: Is there anything I could have done that would defeat the claim entirely?

A: Yes, one thing, and it is all or nothing rather than a percentage. Correia holds that a plaintiff “may not recover if it is found that, after discovering the product’s defect and being made aware of its danger, he nevertheless proceeded unreasonably to make use of the product and was injured by it”, and that otherwise “No recovery by the plaintiff shall be diminished on account of any other conduct which might be deemed contributorily negligent.” Every element has to be present: actual discovery of the defect, awareness of the danger, and unreasonable continued use.

Q: The manufacturer says the warranty expired or was disclaimed. Does that end my injury claim?

A: No. M.G.L. c. 106, sec. 2-316A(4) makes any language attempting “to exclude or modify any implied warranties of merchantability and fitness for a particular purpose or to exclude or modify remedies for breach of those warranties” unenforceable “with respect to injury to the person”, and subsection (5) adds that “The provisions of this section may not be disclaimed or waived by agreement.” A limited repair warranty on a card in the box governs repairs and replacements. It does not govern a personal injury claim.

Q: Does a manufacturer have to warn about a risk nobody knew existed when the product was sold?

A: Not since 1998. Vassallo v. Baxter Healthcare Corp., 428 Mass. 1 (1998) revised Massachusetts law “to state that a defendant will not be held liable under an implied warranty of merchantability for failure to warn or provide instructions about risks that were not reasonably foreseeable at the time of sale or could not have been discovered by way of reasonable testing prior to marketing the product.” The standard is demanding even so. A manufacturer “will be held to the standard of knowledge of an expert in the appropriate field”, which is not the same as what the company actually knew.

Q: What if the danger only came to light after the product was sold?

A: The duty does not stop at the sale. Vassallo states that a manufacturer “will remain subject to a continuing duty to warn (at least purchasers) of risks discovered following the sale of the product at issue.” Recall notices, safety bulletins and service letters are often the evidence that shows what was learned and when, which is why they are worth preserving.

Q: I was using the product in a way the manual did not describe. Am I out of luck?

A: Not necessarily. The warranty covers a product’s fitness for “the ordinary purposes for which such goods are used” under M.G.L. c. 106, sec. 2-314(2)(c), and Back v. Wickes Corp. held that those ordinary purposes “include both those uses which the manufacturer intended and those which are reasonably foreseeable.” The boundary is unforeseeable misuse, and Back is equally clear that “a defendant is not liable for the consequences of the unforeseeable misuse of a product.” Foreseeability is a question about the real world rather than about the instruction sheet.

Q: Does the fact that everyone in the industry builds it this way protect the manufacturer?

A: No, though it is admissible. Back v. Wickes Corp. set out the factors a jury weighs in a design case, including “the gravity of the danger posed by the challenged design, the likelihood that such danger would occur, the mechanical feasibility of a safer alternative design, the financial cost of an improved design, and the adverse consequences to the product and to the consumer that would result from an alternative design.” Industry custom is evidence going into that balance, not a defense that ends it.

Q: How long do I have to bring a defective product claim in Massachusetts?

A: Three years, and do not wait. M.G.L. c. 260, sec. 2A provides that “actions of tort, actions of contract to recover for personal injuries, and actions of replevin, shall be commenced only within three years next after the cause of action accrues”, and M.G.L. c. 106, sec. 2-318 carries its own deadline: “All actions under this section shall be commenced within three years next after the date the injury and damage occurs.” Both are three years, but the triggers are worded differently, and nothing read for this article resolves how that difference applies to an injury discovered long after the product was used. A lawyer should look at the dates early rather than late.

Q: Do I have to notify the seller before I sue?

A: For the personal injury claim the rule is unusually forgiving. M.G.L. c. 106, sec. 2-318 provides that “Failure to give notice shall not bar recovery under this section unless the defendant proves that he was prejudiced thereby”, which puts the burden on the defendant. That is a much softer rule than the general one in M.G.L. c. 106, sec. 2-607(3)(a), under which a buyer “must within a reasonable time after he discovers or should have discovered any breach notify the seller of breach or be barred from any remedy”. Preserving the product early is still the single best protection, since prejudice is easier to show once evidence is gone.

Q: What is the most important thing to do right now?

A: Keep the product and do not let anyone repair, scrap or collect it. A defect claim is usually proved by an engineer examining the object itself, and returning a failed product to the seller for a refund or replacement is one of the most common ways a strong claim quietly becomes unprovable. Photograph the product, the scene and the injuries, save the manual, packaging, receipt, model and serial numbers, and keep any recall or safety notice.

Q: Is Jimmy Knows AI giving me legal advice?

A: No. This is general information about Massachusetts law, not legal advice, and reading it does not create an attorney-client relationship. Whether a particular product failure supports a claim, and what that claim is worth, depends on facts that only a lawyer reviewing them can assess. For advice about a specific situation, call Jim Glaser Law at (617) JIM-WINS.