New York’s auto tort reform, effective May 27, 2026, marks the most significant shift in the state’s motor vehicle litigation since the introduction of the no-fault law in 1973. The change, part of the FY2027 state budget, introduces a modified comparative fault bar under CPLR 1411(b), altering how personal injury claims are handled in motor vehicle accidents.
What the Reform Changes
Under the new rule, a claimant whose culpable conduct exceeds that of the defendant or the combined fault of all defendants cannot recover damages. This provision applies only to motor vehicle personal injury actions subject to Article 51 of the Insurance Law. Notably, it does not affect premises, product, construction, or professional negligence claims, which remain under the unchanged CPLR 1411(a).
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The reform is framed as a comparison of fault rather than a percentage-based bar. While the “50 percent bar” shorthand works for cases with one defendant, the statute complicates matters with multiple defendants by comparing the claimant’s fault to the combined fault of all defendants. The law also applies to actions commenced on or after May 27, 2026, regardless of when the accident occurred.
Key Provisions That Didn’t Pass
Two proposed changes failed to make it into the final bill, significantly shaping the exposure environment. The repeal of CPLR 1602(6), which excludes motor vehicle actions from limitations on joint and several liability for non-economic damages, did not occur. A defendant found 10 percent at fault in a multi-vehicle collision remains exposed to the entire non-economic award when co-defendants are uninsured or judgment-proof. Additionally, Labor Law 240(1), the scaffold law, remains unchanged, continuing to impose absolute liability for elevation-related construction injuries without reduction for the worker’s comparative fault.
The immediate effects of the reform are already evident. Plaintiffs’ firms rushed to file motor vehicle actions in the final weeks of May to secure the old rule, leading to a surge in filings. This was followed by a filing trough in June and July as marginal-liability cases were re-evaluated. The trough is expected to persist while the bar recalibrates which fact patterns are worth taking.
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One significant shift is the increased importance of summary judgment motions. Under the old rule, comparative fault was typically a jury question, but now a defendant can win outright by proving the plaintiff’s fault exceeds their own. This has raised the role of liability evidence, such as event data recorder downloads, dashcam footage, telematics, and phone records, making early investigation a structural necessity rather than an option.
The serious-injury threshold under Insurance Law 5102(d) remains a critical factor in non-economic recovery, and defendants can now combine threshold and fault defenses in a single motion. This has heightened the need for plaintiffs to provide exacting medical and liability documentation from the outset.
Courts will face several key questions, including whether particular claimants are in actions “subject to” Article 51, how non-party fault is treated in the combined-fault comparison, and whether the new rule’s application to pre-effective-date accidents will survive constitutional challenges. The interaction between the new fault bar and CPLR 1602(6) at the judgment stage will also be closely watched, particularly in cases involving low-fault solvent defendants.
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The New Rule’s Impact on Liability Evidence and Litigation Strategies
The introduction of the modified comparative fault bar has significantly altered the value of liability evidence in motor vehicle personal injury cases. Evidence such as event data recorder downloads, dashcam footage, telematics, and phone records has become decisive in determining fault. Both plaintiffs and defendants are now sending preservation demands earlier in the process, making early investigation a structural necessity rather than an optional step. This shift has increased the cost and complexity of case preparation, particularly for plaintiffs who must now provide exacting medical and liability documentation from the first week.
Key Legal Questions and Future Implications
The interpretive work required to fully understand and apply the new rule has only just begun. Florida’s 2023 reform, which generated two years of appellate litigation, provides a precedent, but New York’s larger docket and narrower statute present unique challenges. Practitioners and claims professionals will need to closely monitor appellate decisions and adjust their strategies accordingly. The Law Office of Jason Tenenbaum, P.C., maintains a plain-language CPLR 1411(b) status tracker, offering a valuable resource for those working through the complexities of the new rule.
