Comparative Fault in 2024: Tracking State-Level Allocation Reforms

Comparative fault doctrine is one of the most variable areas of American tort law. The state-level differences are not cosmetic refinements of a single underlying framework. They reflect deliberately distinct legislative choices about how fault should be apportioned among multiple responsible parties, what role plaintiff fault should play in barring or reducing recovery, and how joint and several liability should operate among defendants.

For defense counsel handling multi-state dockets, the variation matters operationally. The same facts can produce materially different exposure profiles depending on the controlling state's framework. This piece surveys the eight state frameworks in which Holdsworth & Inkwell has handled commercial defense matters in recent years, organizing the variation into pure comparative and modified comparative categories and addressing the structural distinctions within each.

The Variation Is Structural, Not Cosmetic

The first analytical distinction is between pure comparative and modified comparative regimes. Pure comparative fault allows plaintiff recovery regardless of the plaintiff's percentage of fault. Modified comparative fault bars plaintiff recovery if the plaintiff's fault exceeds a specified threshold. The choice between these frameworks is fundamental and produces fundamentally different litigation dynamics.

Within each category, additional distinctions matter. Pure comparative jurisdictions vary in their treatment of joint and several liability — some have abolished it entirely, others retain it in modified form. Modified comparative jurisdictions vary in the threshold percentage at which the plaintiff is barred (49%, 50%, 51%) and in their treatment of apportionment among defendants and non-parties. These variations are not technical refinements. They produce different defense strategies, different settlement dynamics, and different verdict structures.

Pure Comparative Jurisdictions

Pure comparative jurisdictions allow plaintiff recovery regardless of plaintiff fault percentage. A plaintiff 80% at fault recovers 20% of damages. The framework is more permissive on plaintiff recovery than modified comparative, but the joint and several liability rules within pure comparative jurisdictions can produce substantial differences in defendant exposure.

Arizona (A.R.S. §§ 12-2505 and 12-2506)

Arizona operates under pure comparative fault under A.R.S. § 12-2505. The state abolished joint and several liability under A.R.S. § 12-2506 in 1986, with limited exceptions for intentional conduct and certain other categories. The combined framework means that defendants are responsible only for their proportionate share of damages, with no risk of paying for the allocated shares of other defendants. Non-party fault allocation is permitted, making the operational analysis turn on distributing fault across the universe of contributing parties and non-parties.

Louisiana (La. Civ. Code arts. 2323 and 2324)

Louisiana applies pure comparative fault under La. Civ. Code art. 2323. The state operates under a civilian law system rather than common law tort, with delictual liability governed by the Louisiana Civil Code. Art. 2324 abolished joint and several liability for negligence-based claims in 1996. The combined framework is structurally similar to Arizona's, but the civilian law overlay produces some procedural and substantive distinctions that out-of-state defense counsel should account for when handling Louisiana matters.

Washington (RCW 4.22.070)

Washington's Tort Reform Act of 1986 produced one of the most distinctive frameworks in the country. Under RCW 4.22.070, the state operates under pure comparative fault with a binary plaintiff-fault rule for joint and several liability. Joint and several liability among defendants is preserved only if the plaintiff is entirely fault-free. If the plaintiff bears any contributing fault, even a small percentage, each defendant is severally liable only for its allocated share. The binary structure makes plaintiff-fault analysis dispositive of the joint-and-several question in every Washington multi-party case.

Modified Comparative Jurisdictions

Modified comparative jurisdictions bar plaintiff recovery once plaintiff fault crosses a specified threshold. The threshold varies across states, and the precise comparison rule — 'as great as' or 'greater than' — determines whether the plaintiff is barred at the boundary or just past it. These distinctions affect litigation tactics, settlement calculations, and verdict form drafting.

Kansas (K.S.A. § 60-258a)

Kansas operates under K.S.A. § 60-258a with a 49% bar. The plaintiff recovers only if their fault is less than the combined fault of all other parties. The 'less than' comparison means the plaintiff is barred at 50% or more, recovering only at 49% or less. Kansas also abolished joint and several liability in 1987 under the same statutory scheme, with non-party fault comparison required under Brown v. Keill. The combined framework is favorable to defense allocation strategy because both the recovery bar and the several-only liability framework reduce defendant exposure structurally.

Georgia (OCGA § 51-12-33) and Utah (Utah Code § 78B-5-818)

Georgia and Utah both operate under 50% bar modified comparative frameworks, but with different statutory architectures. Georgia's OCGA § 51-12-33 implements apportionment among defendants and to non-parties with a fault threshold that bars plaintiff recovery if the plaintiff's fault equals or exceeds 50% of total fault. Utah's § 78B-5-818, enacted as the Liability Reform Act of 1986, similarly imposes a 50% bar with several-only liability and non-party allocation under § 78B-5-820. Both states present similar defense considerations: allocate fault aggressively to non-parties, develop the apportionment record at trial, and treat the 50% threshold as a hard barrier to plaintiff recovery.

Connecticut (C.G.S. § 52-572h)

Connecticut's C.G.S. § 52-572h applies a 51% bar (the 'as great as' rule, barring plaintiff at greater than 50% fault) with several liability among defendants. The framework includes a distinctive reallocation provision: if a defendant's allocated share cannot be collected (the defendant is insolvent, bankrupt, or otherwise judgment-proof), the uncollectible share is reallocated among the remaining solvent defendants. The reallocation provision changes the strategic calculus in multi-party cases where defendants may face co-defendant insolvency risk.

Pennsylvania (42 Pa.C.S. § 7102)

Pennsylvania's Fair Share Act under 42 Pa.C.S. § 7102 produces a 51% bar for plaintiff recovery and a distinctive 60% threshold for joint and several liability under § 7102(a.1)(3)(iii). Defendants found less than 60% at fault are responsible only for their proportionate share. Defendants at 60% or more remain jointly and severally liable for the full damages amount. This is the only modified comparative framework in the country with a fault-percentage threshold for joint liability rather than a categorical rule. Pennsylvania defense strategy in multi-party cases centers on keeping each defendant below the 60% threshold.

Strategic Implications for Multi-State Defense

The eight-state variation produces four operational themes that defense counsel handling multi-state dockets should internalize.

1. Pure vs. modified comparative is the first analytical question. The variation between pure and modified comparative is the most consequential structural distinction. Defense counsel should evaluate plaintiff fault exposure against the controlling state's framework before assessing other strategic considerations.
2. Several-only liability is widespread but not universal. Most states in the firm's footprint have abolished joint and several liability for negligence-based claims, but the abolition is sometimes conditional (Pennsylvania's 60% threshold, Washington's binary plaintiff-fault rule, Connecticut's reallocation provision). Defense counsel should not assume several-only liability without verifying the controlling framework.
3. Non-party fault allocation is a primary defense tool. Most state frameworks permit non-party fault allocation under varying procedural mechanics. Identifying non-party contributors and developing the evidence for their allocated share is a primary defense priority in multi-party matters.
4. Threshold percentages drive verdict form drafting. The variation in threshold percentages (49%, 50%, 51%, 60%) makes verdict form drafting a focused area of defense practice. Proposed verdict forms, jury instructions on apportionment, and the wording of fault allocation questions all merit dedicated motion practice tailored to the controlling framework.

Looking Forward

State comparative fault doctrine continues to evolve. Apportionment statutes are periodically amended (Pennsylvania's 2011 Fair Share Act amendments are the most recent example of a major reform), and appellate authority refines the operational details across all frameworks. Defense counsel handling multi-state dockets should treat comparative fault doctrine as a continuing area of attention. Future issues of State Procedural Updates will track developments across these and other state frameworks.