New York no-fault — the serious injury threshold.

New York is one of a dozen US jurisdictions that operate under a no-fault automobile insurance system. Enacted in 1973 by what is now Article 51 of the Insurance Law (sections §5101 through §5108), the New York no-fault scheme guarantees first-party benefits to injured motorists, passengers, and pedestrians — basic economic loss including medical bills and lost wages up to $50,000 per person — regardless of who caused the accident. In exchange, the statute restricts the right to sue the at-fault driver for non-economic damages: only claimants whose injuries qualify as a serious injury under §5102(d) may bring a tort action for pain and suffering.

The statutory bargain was politically explicit. Pre-1973, New York's common-law tort system handled every fender-bender as a fault-based negligence claim, generating significant litigation costs and relatively slow payouts to genuinely injured claimants. The no-fault scheme promised faster medical and wage replacement in exchange for a filtering threshold on tort access. Whether the threshold has functioned as intended, or as an over-tuned barrier that produces disproportionate summary-judgment litigation in low-severity cases, has been debated for fifty years.

What is not debated is the practical centrality of Toure v. Avis Rent A Car Systems, 98 N.Y.2d 345 (2002), the Court of Appeals decision that fixed the proof requirements for the §5102(d) limitation categories. Toure demands objective medical evidence and quantified limitation; conclusory doctor affirmations, however confidently stated, do not satisfy it. Two decades later, every threshold motion in New York is litigated against the Toure standard.

This guide walks the categories of §5102(d) one by one, explains how threshold motions are typically litigated, and surveys the leading appellate guidance on each branch. For comparators in other US tort-reform jurisdictions, see our explainers on Florida HB 837 and California MICRA.

Why New York has a threshold at all

New York enacted no-fault in 1973 against a backdrop of insurance-market complaints about litigation costs and slow tort payouts in low-severity cases. The legislative bargain was clear: claimants would receive guaranteed first-party benefits regardless of fault, and the right to tort recovery would be preserved for genuinely serious cases through a statutory threshold. The statute identified specific categories of serious injury that would qualify, expecting that the threshold would clear most soft-tissue and minor cases out of the tort docket.

Fifty years on, the threshold has produced a robust body of summary-judgment law that attempts to distinguish genuinely serious soft-tissue injuries from those that, while real, do not satisfy the statute. The line is not always intuitive — a documented herniated disc with credibly quantified limitation can qualify, while a herniated disc without proper objective quantification will not.

What §5102(d) actually says

Section 5102(d) defines “serious injury” as a personal injury that results in any of: death; dismemberment; significant disfigurement; a fracture; loss of a fetus; permanent loss of use of a body organ, member, function, or system; permanent consequential limitation of use of a body organ or member; significant limitation of use of a body function or system; or a medically determined injury or impairment of a non-permanent nature that prevents the injured person from performing substantially all of the material acts that constitute their usual and customary daily activities for not less than ninety days during the one hundred eighty days immediately following the occurrence of the injury or impairment.

That last category is universally referred to as the 90/180-day rule. The categories are disjunctive — clearing any one is sufficient to defeat a threshold motion. In practice, however, the objective categories (fracture, dismemberment, significant disfigurement) are rarely contested while the limitation categories (permanent consequential, significant) and the 90/180-day rule generate the vast majority of summary-judgment litigation.

The nine categories

The Toure standard

The Court of Appeals decision in Toure v. Avis Rent A Car Systems, 98 N.Y.2d 345 (2002), set the standard of proof for the limitation categories. Toure requires objective medical evidence — typically goniometric range-of-motion testing, MRI findings paired with clinical correlation, EMG studies, or comparable diagnostic instruments — that quantifies the claimed limitation. Bare statements of disability, however emphatic, are insufficient.

The decision also established that a treating physician must offer a comparative analysis of the claimed limitation against normal function. A finding of, say, 60-degree forward flexion in the lumbar spine is meaningless without context; the doctor must establish what normal flexion is and explain why the limitation is significant. Subsequent appellate decisions — particularly in the Second and First Departments — have policed this requirement strictly.

Toure also confirmed that a credible explanation for any gap in treatment is required. A plaintiff who claims a permanent or significant limitation but stopped treatment for an extended period without a documented clinical reason will face a strong inference that the claimed limitation had resolved or was not as significant as claimed.

Threshold motion practice

Threshold motions in New York follow a well-established summary-judgment template. The defence makes a prima facie showing — typically through affirmed reports of an independent medical examiner finding full range of motion, normal neurology, and no objective evidence of limitation — and the burden then shifts to the plaintiff to raise a triable issue of fact through Toure-compliant medical proof.

For the 90/180-day category specifically, the plaintiff must produce contemporaneous medical evidence of a doctor-imposed restriction during the 90/180 window — typically a written work note, physical-therapy prescription, or specific activity restriction. Self-imposed restriction or informal claimant testimony alone is insufficient under decisions such as Licari v. Elliott, 57 N.Y.2d 230 (1982).

The volume of threshold motions in the New York trial courts is substantial — thousands per year — and in the Second Department in particular, threshold motion practice has been the engine of a very large body of intermediate-appellate case law on Toure-application questions.

Exceptions and exemptions

The §5102(d) threshold applies only to claims arising from the use or operation of a covered motor vehicle. Claims arising from other accident types — premises liability, products liability, slip-and-fall — are not subject to the threshold and proceed under ordinary tort principles. Certain commercial vehicles fall outside the no-fault scheme entirely under §5103(b), and accidents involving uncovered or out-of-state vehicles can present complicated coverage and threshold issues.

Claims for economic damages in excess of the basic-economic-loss limit ($50,000) require clearing the threshold to be recoverable through tort, but recovery within that limit is by direct claim against the claimant's own no-fault carrier and proceeds without threshold analysis.

How New York compares

New York is one of about a dozen states with a no-fault auto system, and one of a smaller subset that uses a verbal threshold (a defined list of qualifying injuries) rather than a monetary one. Florida, another large no-fault jurisdiction, used a different threshold construct before HB 837 (2023) reshaped its broader tort framework. Among non-no-fault states, the closest functional comparator is the medical malpractice cap regime in California (post-AB 35) or the damages cap in Texas (§74.301) — both limit non-economic damages by amount rather than gating tort access by injury type.

Frequently asked questions

Related

• New York settlement-value reference
• Florida HB 837 tort reform (2023)
• California MICRA, post-AB 35
• Texas medical malpractice caps (§74.301)

Sources

• New York Insurance Law §5102 (definitions, including serious injury)
• New York Insurance Law §5104 (right to recover for non-economic loss)
• New York Insurance Law §5103 (mandatory no-fault coverage)
• Toure v. Avis Rent A Car Systems, 98 N.Y.2d 345 (2002) — controlling Court of Appeals authority
• Licari v. Elliott, 57 N.Y.2d 230 (1982) — 90/180-day standard
• Oberly v. Bangs Ambulance, 96 N.Y.2d 295 (2001) — permanent loss of use
• Pommells v. Perez, 4 N.Y.3d 566 (2005) — gap-in-treatment doctrine
• New York State Department of Financial Services — no-fault regulations (11 NYCRR Part 65)