What Are Subsequent Remedial Measures?
A factory floods, a plaintiff slips, and the very next week the owner installs new non-slip mats. Can the plaintiff point to those mats as proof the floor was dangerous before? Generally, no. Subsequent remedial measures are repairs, design changes, or safety upgrades made after an accident, and courts exclude them to prove negligence, culpability, or a defective condition — not because they’re irrelevant, but because admitting them would discourage people from making things safer.
This is one of the most testable “policy exclusion” rules on the bar exam, precisely because California and federal law part ways on it. If you’re studying for the California Bar Exam, you need both versions cold.
Subsequent remedial measures, defined: post-accident repairs, design changes, or precautions that a defendant made after an injury-causing event, generally inadmissible to prove negligence, culpability, a product defect, or the need for a warning (FRE 407).
The Federal Rule: FRE 407’s Categorical Bar
Under FRE 407, evidence that a defendant took a remedial measure after an injury is inadmissible to prove:
- Negligence
- Culpable conduct
- A defect in a product or its design
- A need for a warning or instruction
The policy rationale is simple: if repairs could be used against defendants in court, they would have every incentive to leave hazards in place. The rule only reaches measures taken by the defendant — a fix made by a landlord, a different manufacturer, or any non-party is not barred by FRE 407 at all.
The Three Recognized Exceptions to FRE 407
FRE 407 is not absolute. Subsequent remedial measures come in for three other purposes:
- Ownership or control, when the defendant disputes owning or controlling the property or product.
- Feasibility of precautions, but only if the defendant has opened the door by claiming the precaution was impossible.
- Impeachment, or to rebut a defense claim that no safety measures were ever taken.
The feasibility exception is the one bar examiners love. If the defendant never argues the fix was infeasible, the exception doesn’t apply, and FRE 407 bars the evidence outright. Timing also matters: safety measures the defendant made at other locations before the accident aren’t “subsequent” at all — they’re ordinary evidence and can rebut an infeasibility defense.
California’s Split: Evidence Code § 1151 vs. FRE 407
This is where California diverges sharply from federal law, and it’s a favorite bar exam trap. California Evidence Code § 1151 tracks FRE 407’s basic negligence bar — but California carves out an exception for strict products liability claims that federal law does not recognize.
| Issue | FRE 407 (Federal) | CEC § 1151 (California) |
|---|---|---|
| Bars remedial measures to prove negligence | Yes | Yes |
| Bars remedial measures to prove a defect (strict products liability) | Yes — categorical | No — admissible in strict products liability actions |
| Feasibility exception | Yes, if defendant denies feasibility | Yes, same principle |
| Ownership/control exception | Yes | Yes |
| Applies to third-party repairs | No — only defendant’s own measures | No — only defendant’s own measures |
In other words, a California plaintiff suing under a strict products liability theory can introduce the manufacturer’s post-accident design change to help prove the product was defective — something a federal court would never allow. The measure still can’t be used to prove ordinary negligence in California, so the exception is narrow and theory-specific.
Worked Example: The Reinforced Ladder Rung
Marta buys a ladder from Apex Tools. While climbing, a rung snaps and she falls, breaking her wrist. One month later, Apex redesigns the ladder with a reinforced rung.
- If Marta sues for negligence (in federal court or California court), the redesign is inadmissible under FRE 407 or CEC § 1151 to show Apex was careless.
- If Marta sues Apex under strict products liability in California state court, CEC § 1151’s carve-out lets her introduce the redesign to help prove the original rung was defective.
- If Apex claims at trial that reinforcing the rung “wasn’t possible with existing materials,” the redesign becomes admissible everywhere — federal or state — under the feasibility exception, because Apex opened the door.
- If Apex still owned and stored the ladder after the sale and disputed that fact, the redesign could also come in on the ownership/control issue.
Common Mistakes Bar Examiners Test
- Assuming FRE 407 bars remedial measures made by anyone — it only bars the defendant’s own post-accident fixes.
- Applying the feasibility exception when the defendant never claimed the fix was impossible.
- Treating pre-accident safety upgrades (at other locations) as “subsequent” — they aren’t, and they’re freely admissible.
- Forgetting California’s products liability carve-out and assuming CEC § 1151 is identical to FRE 407 in every context.
Frequently Asked Questions
Does FRE 407 bar evidence of repairs made by someone other than the defendant?
No. FRE 407 only excludes remedial measures taken by the defendant in the lawsuit. A repair by a landlord, a third-party contractor, or an unrelated manufacturer is not barred by the rule at all.
Can subsequent remedial measures ever prove a product defect in California?
Yes, in a strict products liability action under California law. CEC § 1151 admits subsequent remedial measures to help prove a defect in that specific context, even though the same evidence remains barred to prove negligence.
What triggers the feasibility exception under FRE 407?
The defendant must first claim, at trial, that a safety precaution was not feasible or possible. Once that door is opened, the plaintiff may introduce the subsequent remedial measure to show the precaution actually was feasible.
Key Takeaways
- Subsequent remedial measures are generally inadmissible to prove negligence, culpability, defect, or need for a warning (FRE 407; CEC § 1151).
- Three federal exceptions apply: ownership/control, feasibility (only if defendant denies it), and impeachment.
- California’s CEC § 1151 admits subsequent remedial measures in strict products liability cases — a major, testable divergence from federal law.
- The rule reaches only the defendant’s own post-accident measures, not third-party repairs or pre-accident fixes elsewhere.
- On the California Bar Exam, always ask whether the claim is negligence or strict products liability before applying § 1151.
This article is educational and is not legal advice. Consult a licensed California attorney about your situation.
Related guides
- hearsay rule basics
- character evidence rules
- California’s approach to witness impeachment
- hearsay exceptions under FRE 803