A statute of limitations counts down from your injury; a statute of repose counts down from an unrelated earlier event — like the date a product was sold or a building was finished — and it can run out and permanently bar a lawsuit even before you are hurt. That makes it one of the most counterintuitive traps in personal injury law: you can do everything right after an accident and still have no case, simply because too many years passed since the product left the factory or the building was completed.
The basic difference
Both rules put a time limit on lawsuits, but they measure time from different starting points and behave very differently:
Statute of limitations (SOL): Starts when you are injured, or in many states when you discover (or reasonably should have discovered) the injury and its cause. It is treated as a procedural deadline, and courts sometimes pause ("toll") it — for example while a victim is a minor, or if the defendant hid the problem.
Statute of repose (SOR): Starts on a fixed, unrelated calendar event — the date a product was first sold or manufactured, or the date a building or improvement was substantially completed. It keeps running regardless of when (or whether) anyone is ever injured, and many states treat it as creating a substantive right for the defendant, not a procedural rule for the plaintiff. That means it is usually much harder to pause or extend, even for a child, someone who couldn't have known about the defect, or someone who was injured the day after the repose period expired.
In practical terms: the statute of limitations asks "how long since you were hurt?" The statute of repose asks "how long since the product was sold or the building was built?" — a question that has nothing to do with you personally.
Why this matters most in product and construction cases
Statutes of repose show up most often in two areas of personal injury law:
Product liability. Some states set an outer limit measured from when a product was first sold, delivered, or manufactured — regardless of when a defect causes an injury. A machine, medical device, vehicle part, or piece of equipment that sits in use for many years before failing can fall outside the repose window even though the injury itself is brand new.
Construction and "improvements to real property." Many states set an outer limit measured from substantial completion of a building, structural component, or other improvement (think architects, engineers, and contractors). If a structural defect causes a collapse or fall decades after construction, the repose period may have already expired long before the accident happened.
Because these periods run from a sale or completion date rather than from an injury, it is entirely possible for the repose clock to expire while the product or structure is still in ordinary use, with no one aware that any deadline is even ticking.
How long are these periods?
This is the part that genuinely varies by state, by type of claim (product vs. construction), and sometimes by the type of defendant. Some states have no statute of repose at all for certain claims; others apply one only to construction claims, only to products, or to both; and the length of the period differs from state to state. Reported repose periods across the country commonly fall somewhere in a range of roughly 6 to 15 years, but that is only a general sense of the landscape — it is not a number you can rely on for your situation. There is no substitute for checking the specific statute that applies in the state where the product was sold, the building was built, or the lawsuit would be filed.
Some states also carve out exceptions — for example for cases involving fraudulent concealment, certain toxic exposure claims (like asbestos), or claims against the party who actually caused a known and hidden defect. Whether any exception applies is a state-specific legal question, not something to assume.
A real distinction courts have drawn
Courts, including the U.S. Supreme Court, have explicitly recognized that statutes of limitations and statutes of repose are legally different tools. In CTS Corp. v. Waldburger, 573 U.S. 1 (2014), the Court held that a federal environmental law's provision delaying the start of a limitations period until an injury is discovered applies to statutes of limitations but does not extend to statutes of repose, because repose periods are meant to give defendants an absolute cutoff rather than a discovery-based trigger. The case wasn't about a car accident or a slip-and-fall, but it illustrates a point that comes up constantly in product and construction injury cases: courts often will not stretch a repose deadline just because the injury or discovery came later.
Why this can bar a claim "before you're hurt"
The unsettling part of a statute of repose is that it can expire before an injury ever happens. Picture a piece of industrial equipment sold 18 years ago, or a parking structure completed 14 years ago. If the applicable repose period in that state is shorter than that, an injury caused by a defect in that product or structure today may already fall outside the window — even though the victim was hurt just yesterday, had no way to know about the defect earlier, and filed suit as promptly as possible after the injury. The statute of limitations clock (measured from the injury) might still have plenty of time left, but the statute of repose clock (measured from the sale or completion date) has already run out, and in many states that ends the case regardless.
What to do if this might affect you
Identify the two relevant dates. Note both the date you were injured and, separately, the original sale/manufacture date of the product or the substantial-completion date of the building or structure involved.
Don't assume the ordinary injury-based deadline is the only deadline. Even if you're well within the time most people think of as "the statute of limitations," a repose period tied to an older sale or construction date could already have expired.
Preserve records now. Look for a manufacture date, model/serial number, purchase receipt, permit records, or a certificate of occupancy — these documents are often what actually establishes when the repose clock started.
Get a prompt legal opinion in the state where the product was sold or the structure was built. Repose rules differ by state and by claim type, so the answer depends on exactly where and what happened — this is not something to guess at.
Ask specifically about exceptions. If there's any indication the manufacturer or builder knew about and concealed a defect, ask whether that state recognizes a fraudulent-concealment or similar exception to its repose statute.
Act quickly regardless. Because repose periods are generally not paused for the reasons that pause ordinary limitations periods, waiting to investigate rarely helps and can only hurt.
Time-sensitive note: Unlike many limitations issues, a repose deadline usually cannot be fixed by "discovering" the injury later or by being a minor at the time — so if a product or structure involved in your injury is more than a few years old, treat the repose question as urgent and get it checked immediately rather than assuming you have the usual amount of time.
The bigger picture on injury claims generally
Most personal injury claims are still built on ordinary negligence principles — duty, breach, causation, and damages — and most personal injury cases settle before trial, often with the injured person represented on a contingency fee (commonly around one-third of any recovery, taken only if the case succeeds). States differ on whether a partly-at-fault plaintiff can still recover (comparative fault) or is barred entirely past a certain percentage of fault, and a small minority of states still follow a stricter contributory-fault rule that can bar recovery for a plaintiff who is even slightly at fault. None of that changes because a statute of repose is in play — repose is simply an extra, earlier gate that has to be cleared before those ordinary negligence rules ever get applied.
Key takeaways
A statute of limitations counts from your injury; a statute of repose counts from an unrelated event like a product's sale or a building's completion.
A statute of repose can expire — and permanently bar a claim — before you are ever injured or could have known about a defect.
These rules show up most often in product liability and construction/improvement-to-real-property cases.
Exact repose periods and exceptions vary by state and by claim type — always confirm the specific rule where the product was sold or the structure was built.
Because repose deadlines are hard to pause, treat any claim involving an older product or older building as time-sensitive and get it reviewed promptly.
This article is general information, not legal advice. Personal injury deadlines are state-specific and can be unforgiving — confirm the exact rules for your situation with a qualified attorney in the relevant state before assuming any deadline has or hasn't passed.
Frequently asked questions
If a statute of repose has expired, does that mean I have no case at all?
In most states, yes for that particular claim - once the repose period runs, courts generally treat the right to sue as extinguished, regardless of when the injury happened. There can be narrow exceptions (such as fraudulent concealment) in some states, so it's worth having a lawyer check, but you shouldn't assume an exception applies.
Does the discovery rule help if I didn't find out about the defect until years later?
The discovery rule typically applies to statutes of limitations, delaying when that clock starts until you knew or should have known about the injury. Courts have generally treated statutes of repose differently, since repose is meant to be an absolute outer limit rather than one triggered by discovery.
Does every state have a statute of repose for product or construction cases?
No. Coverage varies - some states have repose statutes for construction claims, some for products, some for both, and some states don't apply repose to certain claims at all. You have to check the specific state involved.
Which state's repose statute applies to my case?
This depends on the facts and can involve choice-of-law rules - often it relates to where the product was sold/used or where the building/structure is located. An attorney reviewing your specific facts can identify which state's rule controls.
I was hurt by an old piece of equipment - what should I do first?
Find the manufacture or sale date (model/serial number, purchase records) as soon as possible and get a prompt legal opinion in the relevant state, since repose issues are time-sensitive and generally can't be paused the way some limitations periods can.
This article is general legal information, not legal advice, and may not reflect the most current law or the law in your jurisdiction. Laws vary by state and change over time. For advice about your specific situation, consult a licensed attorney.
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