Uber/Lyft TNC Liability in California

One-sentence thesis. California law contains seven independent theories that establish Transportation Network Company (TNC) liability for driver negligence, none of which require a finding that the driver was an employee. Uber and Lyft should be prepared to answer all seven. A plaintiff may need only one viable theory.

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Why this matters now

For five years, Uber and Lyft told California courts that Proposition 22 quietly rewrote tort law and barred many tort-liability theories involving driver conduct on public highways. They made that argument in arbitrations that produced no published opinions and in trial-court motions that most plaintiffs' lawyers, working without specialized expertise, did not have the time or resources to fully oppose. In that asymmetric environment, they largely won.

The 2026 record has changed the asymmetry. On March 31, 2026, an arbitrator in Rutkovitz v. Uber Technologies, Inc., AAA Case No. 01-24-0004-5195 (arbitration award; not binding precedent), applied Public Utilities Code § 5354 and entered a multi-million-dollar award against Uber (subject to attorney verification; arbitration award, not binding precedent). The arbitrator's findings were unequivocal: imputation under § 5354 applies regardless of employment classification, and Proposition 22 is irrelevant to the analysis. Three months earlier, on February 5, 2026, a federal jury in Dean v. Uber Technologies, Inc. (D. Ariz.) (trial-court verdict; subject to post-trial motions) returned an eight-figure (subject to attorney verification) verdict against Uber on an apparent-agency theory. On April 20, 2026, a federal jury in Charlotte returned a verdict against Uber on the common-carrier nondelegable duty in WHB 823 v. Uber Technologies, Inc. (W.D.N.C.) (the Mensing case). And the Gonzales writ proceeding (Cal. Ct. App. 4th Dist., No. G085932) is pending in the Court of Appeal, with the potential to resolve the asymmetry as a matter of binding California appellate authority.

If you handle catastrophic personal-injury or wrongful-death matters in California, the framework set out below is the playbook.

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The seven theories at a glance

The seven theories operate at three doctrinal levels. Each is independent. Each is sufficient. A practitioner who pleads only one is fighting the case the defense wants. A practitioner who pleads all seven is fighting the case California law authorizes.

Statutory and regulatory

1. Public Utilities Code § 5354 — statutory imputation. The driver's act, by force of statute, is the permit holder's act. No employment finding. No agency analysis. No Borello multifactor weighing. The Legislature wrote a rule that converts the conduct of the regulated worker into the conduct of the regulated entity. Deep dive →
2. Civil Code § 2100 — common carrier nondelegable duty of utmost care. Charter party carriers owe their passengers the most demanding duty in California tort law. The duty is nondelegable as a matter of law under Eli v. Murphy (1952) 39 Cal.2d 598. Deep dive →

Vicarious liability

1. Secci regulated hirer exception. Secci v. United Independent Taxi Drivers, Inc. (2017) 8 Cal.App.5th 846 establishes vicarious liability for entities engaged in activity involving danger to the public, operating under government-imposed safety regulations, and holding a permit in aid of public safety. Plaintiffs can argue the TNC satisfies each element. Borello drops out. Deep dive →
2. Ostensible agency (CACI 3709; Civ. Code §§ 2300, 2317). The rider opens the TNC's app, is matched with a driver the TNC's algorithm selected, sees TNC branding, pays the TNC, and rates the experience through the TNC. From the rider's perspective, the driver is the TNC. The Arizona federal jury in Dean found exactly that and returned an eight-figure amount (subject to attorney verification). Deep dive →

Direct liability

1. Direct negligence (Civ. Code § 1714). The TNC's affirmative conduct — retaining a driver with a documented complaint history, continuing to match him with riders, ignoring removal requests — creates the risk. Kuciemba v. Victory Woodworks, Inc. (2023) 14 Cal.5th 993 and the Ninth Circuit's Doe v. Uber memorandum disposition confirm the duty. Deep dive →
2. Negligent retention (CACI 426; Noble v. Sears). Where a corporation undertakes an activity involving possible danger to the public under a license granted by public authorities, it may not evade liability for retaining workers it knew or should have known were unfit. The TNC has the data. The TNC has the deactivation authority. The TNC chose not to use them. Deep dive →
3. Negligent undertaking (CACI 450; Restatement 2d § 324A). The TNC made specific safety promises through Community Guidelines, Rider Terms, and public marketing. When it performs those promises negligently and the failure increases the risk of harm or the rider relied on the undertaking, the TNC is liable. Deep dive →

The fortress, not the menu. Practitioners new to TNC litigation often treat the available theories as a menu, choosing the strongest one on the facts and putting the others aside. That is a mistake. The seven theories are a fortress with seven walls. The defense must breach every wall. The plaintiff needs only one wall to hold.

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The two doctrines that close the loop

Two further doctrines convert the seven-theory liability framework into actual recovery.

• Public Utilities Code § 5433(f) — the $1M coverage savings clause. The statute expressly preserves "the liability of a transportation network company arising out of an automobile accident involving a participating driver in any action for damages against a transportation network company for an amount above the required insurance coverage." this regulatory floor — $1,000,000 per Public Utilities Code § 5433(f); subject to verification at policy-issuance date — is a floor, not a ceiling. Deep dive →
• Prop 51 single-tortfeasor doctrine. Where TNC liability is statutorily imputed under § 5354, the TNC and the driver are a single tortfeasor for damages-allocation purposes, and Civil Code § 1431.2 does not require apportionment. The Rutkovitz arbitrator made the holding express in footnote 1. Deep dive →

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Why Proposition 22 does not collapse the framework

Proposition 22 is a labor classification statute. Its text, structure, history, and ballot record all confirm its limited scope. Business and Professions Code § 7451 classifies app-based drivers as independent contractors "with respect to the app-based driver's relationship with a network company." That language addresses the bilateral driver-to-company relationship, not third-party tort claims by injured passengers and members of the public. The opening "notwithstanding" clause enumerates only the Labor Code, the Unemployment Insurance Code, and Department of Industrial Relations orders. The Public Utilities Code is absent. The Civil Code is absent. The CACI Advisory Committee on Civil Jury Instructions deleted a reference to § 7451 from CACI 3704's user notes in 2025, stating that the deleted sentence "does not directly relate to vicarious liability for tort claims."

Even if § 7451 extended to passenger tort claims, only two of the seven theories would even arguably be affected. The other five — § 5354 imputation, common carrier nondelegable duty, Secci regulated hirer, direct negligence, negligent retention, and negligent undertaking — would survive intact. Deep dive on Prop 22 →

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The validations: 2026 has rewritten the record

Date	Case	Court / Forum	Theory	Result
Feb. 5, 2026	Dean v. Uber Technologies, Inc., No. 2:25-cv-04276	D. Ariz. (MDL 3084 bellwether)	Apparent (ostensible) agency	an eight-figure jury verdict (subject to attorney verification; trial-court verdict)
Mar. 31, 2026	Rutkovitz v. Uber Technologies, Inc., AAA No. 01-24-0004-5195	AAA arbitration	PUC § 5354 statutory imputation	a multi-million-dollar award (subject to attorney verification; arbitration award, not binding precedent)
Apr. 20, 2026	WHB 823 v. Uber Technologies, Inc., No. 3:25-cv-00737 (Mensing)	W.D.N.C. (MDL 3084 bellwether)	Common-carrier nondelegable duty	Plaintiff verdict
Pending	Gonzales v. Orange County Sup. Ct., No. G085932 (writ proceeding pending in the California Court of Appeal)	Cal. Ct. App. 4th Dist.	Prop 22 / § 5354 reach (writ)	HLF amicus filed

Deep dive on the MDL bellwethers → | Deep dive on Gonzales →

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How to use this cluster

If you are a referring attorney evaluating a catastrophic Uber/Lyft case, three pages will tell you most of what you need to know:

1. This hub.
2. PUC § 5354 — the cleanest pathway to liability.
3. The $1 million coverage myth — so you do not anchor the case to the wrong number.

If you are litigating the case yourself, the discovery roadmap and the Prop 22 page are the next two stops. The remaining theory pages give you the doctrinal architecture and the citations.

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Why The Homampour Law Firm built this resource

We are a Los Angeles–based catastrophic-injury and wrongful-death trial firm with a decade-plus practice holding TNCs and their permit holders accountable in California. We were the firm in Rutkovitz. We filed an amicus brief in Gonzales. Our founding partner, Arash Homampour, published the Holding Transportation Network Companies Accountable practitioner's guide that this cluster summarizes, and his April 30, 2026 Daily Journal article, "Uber/Lyft are liable for the drivers they put on the road," lays out the textual case in long form. Press page →

If you are evaluating a TNC matter and would like to talk through theory selection, discovery design, MSJ defense, or a referral, call (323) 252-7921 or email [email protected].

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See also (cluster index)

• 02. PUC § 5354 — Statutory Imputation Without Employment
• 03. Common Carrier Nondelegable Duty (Civ. Code § 2100)
• 04. Secci Regulated Hirer Exception
• 05. Ostensible Agency in the TNC Context
• 06. Direct Negligence (§ 1714; Kuciemba)
• 07. Negligent Retention (CACI 426)
• 08. Negligent Undertaking (CACI 450)
• 09. Proposition 22 Is a Labor Statute, Not a Tort Immunity
• 10. The $1 Million Coverage Myth + Prop 51
• 11. TNC Discovery Roadmap — 24 Categories
• 12. Federal MDL Bellwethers (Dean + Mensing)
• 13. The Gonzales Writ + the Asymmetry Problem
• 14. TNC Coverage: April 30, 2026 DJ Byline + Rutkovitz Award

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