Louisiana

Louisiana operates under civilian (civil law) terminology and uses 'prescription' rather than 'statute of limitations' for the time within which civil actions must be brought. Prescription operates similarly to common law statutes of limitations in barring untimely claims, but the conceptual framework, terminology, and interpretive methodology differ from common law jurisdictions. The Louisiana Civil Code provides the primary source of prescriptive periods, supplemented by special legislation for specific categories of claims (medical malpractice, governmental claims, public works).

Delictual actions (the civilian law equivalent of tort claims) are governed by La. Civ. Code art. 3492 as amended by Act 423 of 2024. For causes of action arising on or after July 1, 2024, the prescriptive period is two years. For causes of action arising before July 1, 2024, the prescriptive period remains one year. The transition reflects a significant policy shift: Louisiana had maintained one of the shortest tort prescription periods in the United States for decades, and the 2024 amendment brings Louisiana into alignment with the two-year-PI majority among catalog states (CO, GA, IL, TX, NV, AZ, CT, KS, FL post-HB 837).

The transition issue mirrors Florida's HB 837 transition but in the opposite direction: Florida moved from 4 years to 2 years effective March 24, 2023 (defense-favorable reduction), while Louisiana moved from 1 year to 2 years effective July 1, 2024 (plaintiff-favorable extension). Practitioners with Louisiana exposure must verify accrual dates carefully to determine which framework applies. Claims arising near the July 1, 2024 effective date require particular attention, particularly for continuing torts and claims with extended accrual periods.

Defamation claims operate under the delictual prescription framework, meaning the same one-year/two-year transition applies. Defamation actions arising before July 1, 2024 are subject to the one-year period, while those arising on or after that date are subject to the two-year period. Louisiana's post-2024 two-year defamation period aligns with Florida (post-HB 837), Nevada, and Connecticut frameworks.

Personal actions (the civilian law equivalent of contract claims and many other non-delictual claims) are governed by a ten-year liberative prescription under La. Civ. Code art. 3499. The ten-year period applies to actions on most contracts, both written and oral, and is among the longer contractual prescription periods in the catalog. The ten-year period aligns with Illinois's ten-year written contract period (the longest in the catalog) and provides substantially more flexibility than the six-year period in NY, MA, NV, AZ, and CT, the five-year period in KS and FL, or the four-year period in CA and TX.

Open accounts and certain commercial claims operate under a shorter three-year prescription under La. Civ. Code art. 3494. UCC sale-of-goods claims follow the four-year UCC period under La. R.S. § 10:2-725. Fraud claims arising from contractual relationships generally follow the ten-year contractual prescription under art. 3499, while delictual fraud claims follow the delictual prescription framework with the 2024 amendment.

Medical malpractice claims operate under a special prescription framework at La. R.S. § 9:5628: one year from discovery and three years from the act, omission, or neglect, with the three-year outer bound operating as an absolute cap regardless of discovery. The 1/3-year framework is more defense-favorable than the standard delictual prescription for late-discovered injuries. The three-year outer cap is shorter than Massachusetts's seven-year repose, Georgia's five-year repose, and Texas's ten-year repose, and parallels California's three-year and Connecticut's three-year repose periods.

Claims against Louisiana governmental entities operate under special prescriptive and procedural frameworks. The Louisiana Constitution Article 12, Section 10 provides limited sovereign immunity waiver, and specific procedural requirements apply to claims against the State and political subdivisions. Public Bid Law requirements (covered separately) impose additional procedural deadlines for public contract claims that operate alongside the general prescriptive periods.

Louisiana applies a pure comparative fault framework under La. Civ. Code art. 2323. A plaintiff's recovery is reduced by the plaintiff's proportionate share of fault, regardless of the percentage. A plaintiff who is 99 percent at fault may still recover one percent of damages. The pure comparative framework places Louisiana among the catalog's pure comparative jurisdictions: California (Li v. Yellow Cab, 1975), New York (CPLR § 1411), New Mexico (Bartlett v. New Mexico Welding, 1982), Arizona (A.R.S. § 12-2505), and Washington (RCW 4.22.005).

Article 2323 was amended in 1996 as part of the comprehensive Louisiana tort reform package (Act 3 of 1996) to clarify the application of comparative fault across all categories of tort claims, including strict liability and product liability. The 1996 amendment also extended the comparative fault analysis to encompass fault by all parties whose conduct contributed to the injury, including settling parties, immune parties, and parties not named in the lawsuit.

Louisiana abolished solidary (joint and several) liability for non-intentional torts under La. Civ. Code art. 2324(B) as amended in 1996. Each defendant is liable only for the percentage of damages attributable to that defendant's fault as determined by the trier of fact. The 1996 reform was a substantial change in Louisiana tort law: prior to 1996, Louisiana followed a more traditional solidary liability framework that allowed plaintiffs to recover the full amount from any defendant. The current several-only framework parallels Arizona's hybrid pure comparative + several-only structure.

The combination of pure comparative fault with several-only liability creates a hybrid framework: plaintiff-favorable on threshold recovery but defense-favorable on damages allocation. Among the catalog's pure comparative states, only Arizona and Louisiana have this hybrid structure. California, New York (functionally via Article 16 several liability for non-economic damages), New Mexico, and Washington preserve broader joint and several liability across more categories of tort claims.

Solidary (joint and several) liability is preserved under La. Civ. Code art. 2324(A) for intentional torts. Multiple defendants who conspire or act in concert to commit an intentional tort remain solidarily liable for the full amount of damages, regardless of their individual percentage of fault. The categorical preservation operates as a substantive exception to the otherwise broad several-only framework, requiring careful claim characterization at the outset of litigation. The preservation parallels the intentional tort exceptions in Nevada (NRS 41.141(5)) and Arizona (A.R.S. § 12-2506(D)).

Fault may be allocated to nonparties under La. Civ. Code art. 2323, including settling parties, immune parties, and parties not named in the lawsuit. The framework requires defendants to identify potentially responsible nonparties and develop evidence about their conduct to maximize the allocation of fault away from named defendants. Louisiana's nonparty fault allocation parallels frameworks in Nevada (NRS 41.141), Arizona (A.R.S. § 12-2506(B)), Connecticut (C.G.S. § 52-572h(c)), and Kansas (K.S.A. § 60-258a), though Georgia's framework under OCGA § 51-12-33 remains the most aggressive in expressly contemplating nonparty allocation as a complete component of the analysis.

Louisiana is the only United States jurisdiction that operates under a civilian (civil law) legal system rather than the common law system that governs the other 49 states. The civilian tradition derives from Louisiana's French colonial heritage (under the Coutume de Paris and Napoleonic Code influence) and Spanish colonial heritage (under Spanish Civil Code traditions). Louisiana retained civilian principles when admitted to the United States in 1812, codifying them in the Digest of 1808 and the subsequent Louisiana Civil Codes of 1825 and 1870.

The civilian system operates with conceptual frameworks, terminology, and methodology that differ from common law. Practitioners moving to Louisiana from common law jurisdictions must adjust to the foundational distinctions: the Civil Code as primary authority rather than judicial precedent, code-based reasoning rather than case-based analogy, and distinct civilian terminology for fundamental legal concepts. The differences affect every aspect of practice, from legal research methodology to brief structure to courtroom argumentation.

The Louisiana Civil Code is the primary source of substantive private law: persons, property, obligations (contracts and quasi-contracts), torts (delicts and quasi-delicts), prescription, conflict of laws, and family law. The Civil Code is structured as a comprehensive logical system rather than a collection of separate statutes, with each article building on and relating to other articles in the same system. Code articles are organized into Books, Titles, Chapters, and Sections, with cross-references throughout maintaining the systematic structure.

When a Louisiana court interprets a Civil Code article, the article itself is the primary authority. Judicial decisions interpreting the article are secondary, persuasive rather than binding in the common law sense. The Civil Code's drafting reflects the civilian commitment to legislative supremacy: lawmakers, not judges, create the substantive law. This contrasts sharply with common law jurisdictions where judicial precedent has independent binding authority and where courts can create substantive legal doctrines through case-by-case development.

Louisiana operates under the civilian doctrine of jurisprudence constante rather than common law stare decisis. Under jurisprudence constante, a line of consistent judicial decisions interpreting a Civil Code provision has interpretive weight, but a single decision (even from the Louisiana Supreme Court) does not bind future courts in the same way that common law precedent binds. The doctrine reflects the civilian principle that the Civil Code is the primary authority and that judicial interpretation is a guide to (rather than a source of) substantive law.

Practically, jurisprudence constante means that practitioners can argue against established Louisiana case law if the Code text supports a different interpretation, in a way that would generally be unavailable under common law stare decisis. The distinction matters most in cases involving novel or under-developed areas of law, where Code interpretation may be more open than established case law would suggest. Louisiana courts increasingly cite stare decisis principles in some contexts, particularly for constitutional and procedural matters, creating a partially hybrid framework that requires careful navigation.

Practitioners with Louisiana exposure must adapt to civilian terminology that diverges from common law terms: prescription (rather than statute of limitations), delictual (rather than tort), conventional (rather than contractual), solidary (rather than joint and several), liberative (rather than running of limitations), and many others. The Civil Code's distinctive vocabulary requires careful attention when translating concepts between Louisiana and other catalog states, and superficial similarities can mask substantive differences in operation.

Louisiana practice also operates under distinctive procedural frameworks (the Louisiana Code of Civil Procedure rather than common law-derived rules) and distinctive evidentiary rules. While Louisiana has adopted many elements of the Federal Rules of Civil Procedure and Federal Rules of Evidence over time, the underlying civilian framework continues to shape interpretation and application. Cross-jurisdictional matters involving Louisiana require careful coordination of substantive and procedural frameworks to avoid the most common errors: applying common law presumptions to Louisiana issues, missing distinctive Louisiana procedural deadlines, or mistranslating civilian concepts into common law equivalents.

Louisiana's Public Bid Law under La. R.S. § 38:2211 et seq. governs the procurement of public works contracts by the State of Louisiana, parishes, municipalities, school boards, and other public entities. The Public Bid Law imposes strict procedural requirements for advertising, bidding, bid evaluation, and contract award. Public works contracts above statutory threshold amounts must be procured through competitive bidding, with limited exceptions for emergencies, sole-source procurements, and specific categorical exemptions.

The Public Bid Law's procedural requirements are strictly construed by Louisiana courts. Procedural violations can invalidate contracts, trigger competitor protests, and create cause of action for damages by aggrieved bidders. The strict-construction approach distinguishes Louisiana's public bid framework from many other states that allow more flexibility in procurement processes. Practitioners advising on Louisiana public works must understand the Public Bid Law's procedural requirements in detail and ensure compliance at each step.

The Louisiana Public Works Act under La. R.S. § 38:2241 et seq. requires contractors on public works projects to furnish a payment bond and performance bond. The payment bond protects subcontractors, suppliers, and laborers by providing a source of recovery for unpaid claims arising from the public works project. The performance bond protects the public entity by ensuring completion of the work according to contract specifications.

Claimants on the payment bond must follow specific procedural requirements to perfect their claims, including timely filing of statements of claim and timely commencement of suit on the bond. Failure to comply with the procedural requirements can bar otherwise valid claims. The framework operates as a substitute for traditional lien rights, which are not available against public property in Louisiana (parallel to most other US jurisdictions).

Louisiana public contracts must be in writing and signed by both parties to be enforceable. Oral modifications of public contracts are generally invalid, and equitable doctrines (estoppel, detrimental reliance) have limited application against public entities. The strict writing requirement parallels but goes beyond the typical statute of frauds frameworks in common law jurisdictions, reflecting Louisiana's civilian commitment to formal contract requirements and the additional public policy considerations involved in public expenditure.

Change orders and contract amendments must comply with the same writing requirements and (in many cases) the same procurement procedures as the original contract. Contractors performing work outside the scope of the written contract bear the risk that the additional work will not be compensated. Louisiana courts have applied the requirements strictly, sometimes denying recovery to contractors who performed substantial additional work without proper change order documentation.

For private construction projects, the Louisiana Private Works Act under La. R.S. § 9:4801 et seq. provides lien rights for contractors, subcontractors, suppliers, and laborers. The Private Works Act establishes procedures for filing and enforcing privileges (the civilian law equivalent of liens) against the property and against the contract proceeds. The framework operates as a substantive scheme for contractor protection on private projects, distinct from the public works framework but with parallel policy goals of protecting downstream construction participants from payment risk.

The Private Works Act includes specific procedural deadlines for filing statements of claim and commencing actions to enforce privileges. Missing the deadlines can extinguish lien rights, even where the underlying claim for payment remains valid. Practitioners representing parties on Louisiana construction projects (public or private) must understand both the Public Bid Law/Public Works Act framework for public projects and the Private Works Act framework for private projects, since they operate as the primary mechanisms for contractor and supplier protection.

Louisiana's Medical Assistance Programs Integrity Law under La. R.S. § 46:437.1 et seq. provides the state's primary false claims framework, focused specifically on Medicaid fraud. The statute creates civil penalties and treble damages for false claims against the Louisiana Medicaid program, with qui tam provisions allowing private relators to bring actions on behalf of the state.

Louisiana's Medicaid-only framework is narrower than the broad qui tam False Claims Acts in many other catalog states (NY, CA, IL, GA, MA, NM, TX, NV, CT, OR, TN). Louisiana joins Colorado, Arizona, Oklahoma, Utah, and Washington in the Medicaid-only state FCA camp, where qui tam relator actions are limited to healthcare fraud claims rather than spanning the broader range of state contract fraud, tax fraud, and procurement fraud covered by general FCA frameworks.

The Medical Assistance Programs Integrity Law includes qui tam provisions allowing private individuals (relators) to bring civil actions on behalf of the State of Louisiana against parties alleged to have submitted false claims to the Louisiana Medicaid program. Relators must file actions under seal and serve the Louisiana Attorney General with the complaint and supporting evidence. The Attorney General has the right to intervene in the action and pursue it directly, or to allow the relator to continue the action.

Successful qui tam actions provide relators with a percentage of the state's recovery, typically ranging from 15 to 25 percent depending on the level of relator involvement and whether the Attorney General intervened. The relator percentage framework parallels the federal False Claims Act qui tam structure and similar state FCA provisions in other catalog states.

Successful actions under the Medical Assistance Programs Integrity Law may recover treble damages (three times the amount of actual damages caused by the false claims), civil penalties per violation, attorney's fees and costs, and investigation costs. The treble damages provision and civil penalties framework parallels the federal False Claims Act remedies. The combined remedies create significant exposure for defendants in Medicaid fraud actions.

Medicaid is a joint federal-state program, so Louisiana Medicaid fraud cases often involve coordinated federal-state action under both the federal False Claims Act (31 U.S.C. § 3729 et seq.) and the Louisiana Medical Assistance Programs Integrity Law. Federal and state prosecutors frequently coordinate investigations, and qui tam actions may proceed in federal court (for federal FCA claims involving Medicaid's federal match) and state court (for state FCA claims involving state Medicaid funds) simultaneously. Practitioners with Louisiana Medicaid fraud exposure must understand the coordination between federal and state frameworks and the strategic implications of parallel actions.