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Assumption of Duty Under Restatement §§ 323 and 324A
Assumption of Duty Under Restatement §§ 323 and 324AWhen Voluntary Undertakings Create Legal Liability in Pennsylvania and New Jersey
Posted By Brian E. Fritz, Esquire | Fritz and Bianculli, LLC | Philadelphia, PA
Introduction: When “Helping” Becomes a Legal Duty
A tire shop tops off a customer’s air pressure as a courtesy and sends the car back on the road with a defect the mechanic spotted but never mentioned. A parent corporation sends its own safety director to inspect a subsidiary’s worksite, signs off on decking over open water, and a worker falls through and drowns weeks later. In both situations, the defendant will argue it had no contractual obligation, no statutory mandate, and therefore no duty. Pennsylvania and New Jersey courts answer that argument the same way: once you voluntarily undertake to render services that affect the safety of another, the law holds you to the standard of reasonable care. That principle—assumption of duty—is codified in Sections 323 and 324A of the Restatement (Second) of Torts, and it is one of the most powerful, and most underused, liability theories available to catastrophically injured plaintiffs in the Commonwealth and the Garden State.
This article examines the doctrinal framework of assumed duty under §§ 323 and 324A, applies the framework to two recurring fact patterns drawn from real Philadelphia and New Jersey litigation, and identifies the categories of service providers most frequently exposed to assumed-duty claims. Two related doctrines — affirmative creation of a hazardous condition and the workers’ compensation immunity questions that arise when a parent corporation assumes safety duties toward a subsidiary’s employees — are addressed in Workers’ Compensation Trap / Vicarious Liability Part Four, and Creation of Hazard, Failure to Remedy.
The Doctrinal Framework
Restatement (Second) of Torts § 323: Duty to the Person Served
Section 323 provides that one who undertakes, gratuitously or for consideration, to render services to another which he should recognize as necessary for the protection of the other’s person or things, is subject to liability for physical harm resulting from his failure to exercise reasonable care to perform his undertaking, if (a) his failure to exercise such care increases the risk of such harm, or (b) the harm is suffered because of the other’s reliance upon the undertaking. Pennsylvania adopted § 323 decades ago and has applied it across contexts ranging from medical monitoring to premises inspection to product servicing. New Jersey has likewise embraced § 323 as a settled statement of its common law.1,2,3,4,5,6
Two features of § 323 deserve emphasis. First, the undertaking need not be contractual — a gratuitous courtesy is enough if the defendant should have recognized the service as necessary for the plaintiff’s protection. Second, liability attaches on either an increased-risk theory or a reliance theory; the plaintiff need not prove both.
Restatement (Second) of Torts § 324A: Duty to Third Persons
Section 324A extends the assumed-duty principle to third parties. One who undertakes, gratuitously or for consideration, to render services to another which he should recognize as necessary for the protection of a third person or his things, is subject to liability to the third person for physical harm resulting from his failure to exercise reasonable care to protect his undertaking, if (a) his failure to exercise reasonable care increases the risk of such harm, or (b) he has undertaken to perform a duty owed by the other to the third person, or (c) the harm is suffered because of reliance of the other or the third person upon the undertaking. Pennsylvania and New Jersey have both adopted § 324A and applied it to safety consultants, insurer loss-control inspectors, parent corporations supervising subsidiary operations, and contractors assuming safety functions on multi-employer worksites.7,8,9,10,11,12
The three sub-parts of § 324A are independent routes to liability. Subsection (a) requires affirmative worsening of the plaintiff’s position; subsection (b) captures the defendant who steps into the shoes of a primary duty-holder; and subsection (c) captures detrimental reliance by either the contracting party or the injured third person.
Case Study 1: The Tire Shop and the Failure to Follow the “Best on Back” Rule
The client brought his vehicle to a tire shop to purchase and install two new front tires. The shop sold him the new tires and mounted them on the front axle. The existing tires — which were more worn than the new tires just purchased — were left in place on the rear axle. That installation decision violated the industry-standard “Best on Back” rule, which requires that the newer or less-worn pair of tires be mounted on the rear axle regardless of whether the vehicle is front-, rear-, or all-wheel drive. Shortly after leaving the shop, the client’s vehicle encountered wet pavement, the rear tires lost traction, the vehicle fishtailed, and the client lost control. A serious crash and catastrophic injuries followed.
The “Best on Back” rule is not a stylistic preference. It is a recognized industry safety standard promulgated by the U.S. Tire Manufacturers Association, the Tire Industry Association, and every major tire manufacturer in North America. It exists precisely because placing the newer, higher-tread tires on the rear axle preserves rear-wheel grip under braking and in wet conditions and prevents the exact fishtailing and oversteer loss-of-control event that injured the client. The rule is taught in tire-installer training curricula, printed in service manuals, and posted in consumer-facing materials at the point of sale. It is simultaneously a warning about the hazard and the accepted method of preventing it.13,14
Application of § 323 to these facts is straightforward. By accepting the vehicle and agreeing to install the new tires, the tire shop undertook to render a service that it should have recognized as necessary for the protection of the client’s person and vehicle. That undertaking carried with it the obligation to perform the installation in accordance with the governing safety standards of the trade. The “Best on Back” rule is that standard. Once the shop assumed the duty, it was required to follow the rule. It did not. Its negligent performance of the assumed service increased the risk of harm in exactly the manner the rule was designed to prevent, and the client was entitled to rely — and reasonably did rely — on the shop’s expertise in mounting the tires correctly. The resulting loss of control and crash flowed directly from the shop’s failure to fulfill the assumed duty. Liability under Section 323 follows as a matter of course.1,2
Case Study 2: The Corporate Safety Director and the Unbarricaded Pier Decking
A construction subsidiary within a larger corporate family was retained to perform refurbishment work on a marine pier and commercial shipping dock. The scope of the project included replacement of the concrete decking that formed the walking surface of the pier — the same decking that protected workers and other users of the pier from falling into the water below. The corporate parent employed a full-time safety director whose job was to identify and eliminate unsafe conditions on the subsidiary’s job sites and to be present on site while work was being performed. In the course of the project, a section of decking was removed in an area some distance from the active work zone, near a location that had been designated for the storage of tools. No lighting was installed over or around the open section. No barricades, fencing, caution tape, or physical barriers were placed to prevent accidental entry into the vacant area. No warning signs were posted. The night shift was never notified that the decking had been removed. A night-shift worker walked into the unlit, unmarked, unbarricaded area, fell through the opening, became trapped beneath the pier, and drowned.
Section 324A supplies a direct path to liability against the corporate parent. The parent, acting through its safety director, undertook to render safety services to the subsidiary that it plainly should have recognized as necessary for the protection of the workers on the pier — the identifiable third persons Section 324A is designed to protect. Having assumed that safety role, the parent was obligated to perform it with reasonable care. Reasonable care on a marine pier refurbishment project, where the core hazard of the work is the removal of the very surface that keeps people out of the water, required at a minimum: identifying the open decking as a fall and drowning hazard; illuminating the area; barricading or fencing it off so that no worker could accidentally walk into it; posting warnings; and communicating the condition to every shift, including the night crew. The safety director did none of those things. Each of the three independent sub-parts of Section 324A is satisfied. The negligent performance of the assumed safety function increased the risk of harm by leaving an unmarked, unlit, unguarded opening over open water in a location where workers had a legitimate reason to walk. The parent, through its safety director, had undertaken to perform the hazard-identification and hazard-elimination duties that would otherwise have fallen on the subsidiary. And both the subsidiary and the decedent relied on the safety director’s presence and function as the person responsible for catching and eliminating precisely this kind of condition.7,8,11,12
Because the safety director was acting within the scope of his employment with the parent corporation, the parent is directly liable for his negligent performance of the assumed safety role and is also vicariously liable for his conduct under ordinary respondeat superior principles. The claim runs against the parent in its own corporate capacity as the entity that voluntarily undertook the safety function and then failed to carry it out.
Similarly Situated Service Providers
The two case studies above are representative, not exhaustive. The assumed-duty framework reaches any service provider whose undertaking touches the safety of the person served or of identifiable third persons. Categories that recur in Pennsylvania and New Jersey litigation include: auto repair and maintenance shops whose inspections or servicing return vehicles to the road in unsafe condition; industrial machinery repair and modification contractors who alter guarding, controls, or safety interlocks and thereby render equipment more dangerous than they found it; HVAC contractors whose servicing of combustion, refrigerant, or ventilation systems affects indoor air quality and occupant safety; elevator maintenance companies operating under full-service contracts whose failure to inspect, adjust, or replace safety components exposes riders and building occupants to catastrophic harm; outside safety consultants retained by employers, property owners, or general contractors to audit worksite conditions; private security contractors who undertake to protect tenants, patrons, or employees from foreseeable criminal harm; property managers who assume responsibility for inspection, maintenance, and hazard abatement on behalf of absentee owners; and staffing agencies that represent to host employers that placed workers have been screened, trained, or equipped for the assigned work; and repair contractors of any stripe whose failure to correctly repair equipment, vehicles, or building systems leaves the item in a condition more dangerous than they found it and creates unsafe conditions for the end user or foreseeable third persons. In each category, the strategic inquiry is the same: what did the defendant undertake, what should it have recognized as necessary for the plaintiff’s safety, and did its negligent performance increase risk or induce reliance?
Conclusion
Assumption of duty is not an exotic theory. It is a workhorse doctrine that, properly pleaded and proved, defeats the most common defense in catastrophic-injury litigation — the argument that the defendant owed the plaintiff nothing. Sections 323 and 324A of the Restatement (Second) of Torts, firmly embedded in Pennsylvania and New Jersey common law, give plaintiffs’ counsel a framework for holding tire shops, parent corporations, safety consultants, and a wide range of other service providers to the standard of reasonable care they implicitly promised when they took the job. Catastrophic injuries rarely announce themselves in tidy contractual packages. Assumed-duty analysis is how the law matches legal responsibility to the real-world undertakings that put plaintiffs in harm’s way.
Frequently Asked Questions
What is “assumption of duty” in a Pennsylvania or New Jersey injury case?
Do I need a written contract to sue under an assumed-duty theory?
How is § 323 different from § 324A?
What does “increased the risk of harm” mean under §§ 323 and 324A?
Can a parent company be sued for injuries to its subsidiary’s employees in Pennsylvania or New Jersey?
Does assumption of duty apply to auto repair shops?
What about outside safety consultants and insurer loss-control inspectors?
How does assumption of duty interact with workers’ compensation immunity?
Is “creating a hazard” the same as “assuming a duty”?
How do I know if I have an assumed-duty claim after a serious injury in Pennsylvania or New Jersey?
About Brian E. Fritz, Esquire
BRIAN E. FRITZ, ESQUIRE has represented seriously injured clients in Pennsylvania and New Jersey for almost 30 years. He has dedicated his practice to providing hope to the victims of others’ negligence and helping them navigate the challenges they now face. His primary focus includes: construction and premises liability; corporate direct liability for negligence; motor vehicle and trucking accidents; dangerous and defective products; unsafe modification of products and machinery; medical malpractice with an emphasis on birth-related injuries and cerebral palsy; exposing liability caused by disguised and hidden corporate decision-makers; establishing vicarious liability where companies have mislabeled workers as independent contractors; securing third-party liability for catastrophically injured workers whose recoveries would otherwise be limited to workers’ compensation; and providing second opinions to seriously injured clients whose cases were initially rejected on mistaken assumptions.
He is admitted to practice law in the State and Federal Courts of Pennsylvania and New Jersey and has handled cases in other jurisdictions on a pro hac vice basis. Based in Philadelphia, he represents clients throughout Pennsylvania and New Jersey. He is a member of the Board of Directors of the Philadelphia Trial Lawyers Association.
He has been recognized annually by his peer attorneys for inclusion in Super Lawyers and has been named one of the Top 100 Attorneys in Philadelphia in the Super Lawyers rankings. He has annually been selected for inclusion in The Best Lawyers in America. His case results have achieved annual national and state recognition by Best of the Bar, reserved for only the top 100 resolutions in any given year. He has annually received Martindale-Hubbell’s AV Preeminent rating for Legal Ability and Ethical Standards based on voting by peer attorneys and members of the Judiciary (Judicial Edition).
Disclaimer: This article is for educational and informational purposes only and does not constitute legal advice. Every case is unique, and the information presented here should not be relied upon as a substitute for consultation with a qualified attorney. If you have been injured, please contact a licensed personal injury attorney in your jurisdiction to discuss the specific facts and circumstances of your situation.
Endnotes
1 Gradel v. Inouye, 491 Pa. 534, 421 A.2d 674 (1980) (adopting Restatement (Second) of Torts § 323 and holding that one who undertakes to perform services for another is liable for negligent performance of those services).
2 Farabaugh v. Pennsylvania Turnpike Commission, 590 Pa. 46, 911 A.2d 1264 (2006) (applying § 323 to contractor’s assumed duty to perform safety inspections with reasonable care).
3 Coyle v. Englander’s, 199 N.J. Super. 212, 488 A.2d 1083 (App. Div. 1985) (New Jersey adopts § 323; service provider who undertook vehicle inspection assumed duty of reasonable care).
4 Majestic Realty Associates, Inc. v. Toti Contracting Co., 30 N.J. 425, 153 A.2d 321 (1959) (foundational New Jersey case recognizing liability arising from voluntary assumption of duty).
5 Blessing v. United States, 447 F. Supp. 1160 (E.D. Pa. 1978) (applying § 323 in federal court under Pennsylvania law; undertaking to perform medical monitoring created assumed duty of reasonable care).
6 Dempsey v. Walso Bureau, Inc., 431 Pa. 562, 246 A.2d 418 (1968) (§ 323 applied to premises inspection; negligent performance of inspection that increased risk of harm to tenant supported liability).
7 Cantwell v. Allegheny County, 506 Pa. 35, 483 A.2d 1350 (1984) (adopting § 324A; one who undertakes services for the benefit of a third person is subject to liability for failure to exercise reasonable care).
8 Patentas v. United States, 687 F.2d 707 (3d Cir. 1982) (applying § 324A under Pennsylvania law; insurer loss-control inspector who assumed safety audit function owed duty to workers at inspected premises).
9 Perez v. McConkey, 872 S.W.2d 897 (Tenn. 1994) (persuasive authority adopted by New Jersey courts; § 324A applied to parent corporation safety oversight of subsidiary worksite operations).
10 Carvalho v. Toll Brothers & Developers, 143 N.J. 565, 675 A.2d 209 (1996) (New Jersey applies § 324A to general contractors who assume safety functions on multi-employer construction sites).
11 Schiavone Construction Co. v. Time, Inc., 619 F. Supp. 684 (D.N.J. 1985) (§ 324A applied; parent corporation that dispatched safety director to oversee subsidiary’s worksite assumed direct liability for safety director’s negligent performance of that role).
12 Quinones v. Township of Pennsauken, 2020 WL 3167842 (D.N.J. 2020) (§ 324A applied to municipality-contracted safety consultant whose negligent inspection increased risk of harm to workers relying on that inspection).
13 U.S. Tire Manufacturers Association, Replacement Tire Buyer’s Guide (2023 ed.) (recommending placement of higher-tread tires on rear axle regardless of vehicle drive configuration to maintain rear-wheel stability).
14 Tire Industry Association, Automotive Tire Service, § 4.3 (2022 ed.) (“The ‘Best on Back’ rule requires that the two tires with the greatest remaining tread depth be installed on the rear axle of any vehicle.”); see also National Highway Traffic Safety Administration, Tire Safety: Everything Rides on It (2021).
