Search this and the first thing you meet is an argument about counting. Four elements, or five. Tables comparing the two. Whether causation is one element or two.
Nevada’s courts have settled the counting question, and they say four. But the count is the least useful thing to know about it, because the four are not equally contested. In a car accident claim, one of them is usually conceded within minutes, one is argued on the evidence, and one decides most cases that are lost.
What follows is the structure of a Nevada negligence claim and, more to the point, where a collision case actually turns.
Key Takeaways
- Nevada courts state a negligence claim in four elements: duty, breach, proximate causation, and damages.
- The five-element version that circulates online splits causation in two. Nevada’s published formulation treats proximate causation as a single element.
- Duty is almost never the contested element in a collision between road users.
- Breach is argued against a standard, and that standard may come from a written traffic law or from ordinary reasonable care.
- Causation is where car accident claims are most often defeated, and the fight is usually medical rather than mechanical.
- Damages is a required element, not a final step. Without a compensable loss there is no claim, however careless the driving.
- Comparative negligence is a defence, not an element.
How Nevada States the Elements
In Humphries v. New York-New York Hotel & Casino, 133 Nev. 607, 403 P.3d 358 (2017), the Nevada Supreme Court set out the elements of a negligence-based claim in four parts: “(1) duty, (2) breach, (3) proximate causation, and (4) damages.” The court was describing an innkeeper liability suit, a premises claim, and drew the formulation from its earlier decision in Estate of Smith v. Mahoney’s Silver Nugget, Inc., 127 Nev. 855, 265 P.3d 688 (2011).
So the four-versus-five question has an answer in Nevada’s published decisions, and the answer is four. The five-element version separates factual causation from proximate causation and counts them individually. That is a teaching structure, useful for showing that causation does two distinct jobs, but it is not how the formulation appears in Nevada’s own cases.
The practical point is that nothing turns on the count. A claim that fails for want of causation fails whether causation was being counted as one element or two. What is worth knowing is which of the four is likely to be the obstacle.
Duty: Rarely the Fight After a Collision
Duty asks whether the defendant owed the injured person an obligation to take care at all. In many areas of injury law this is the hard question — whether a business owed anything to a particular visitor, whether a professional owed anything to someone who was not a client.
Between drivers on a road it is close to a given. People who share a roadway owe each other care in how they operate their vehicles, and a defence built on denying that is not a defence anyone runs.
Duty becomes live again when a claim reaches past the other driver. Whether an employer is answerable for the driving of an employee, whether a road authority owed an obligation in respect of a hazard, whether a vehicle owner is answerable for a driver they permitted — these are genuine duty questions, and they turn on relationships rather than on the collision itself. For most claimants, the significance of duty is that it is the element that decides who else can be sued.
Breach: Measured Against What
Breach asks whether the defendant fell short. The answer depends entirely on the standard being applied, and in a Nevada collision case the standard can come from either of two places.
It can come from a written law. Where a traffic statute sets out what a driver must do, a violation of it can supply the standard directly instead of leaving a jury to construct one. How that works, and where it does not, is set out on our Nevada car accident page.
Or it can come from ordinary reasonable care — what a careful driver would have done in those conditions, on that road, at that moment. This is the standard that applies to the large category of careless driving that breaks no specific rule: the speed that was legal but wrong for the weather, the lane change that was permitted but badly judged, the attention that drifted.
Both routes are available. A claim is not weaker for running on the second, and in poor-visibility and poor-surface cases the second is frequently the more accurate description of what went wrong.
Causation: Where Claims Are Actually Lost
Causation is the element that defeats the most car accident claims, and it is rarely about whether the collision happened.
Liability usually divides into two questions that get collapsed into one in casual discussion. The first is whether the defendant’s conduct caused the crash. In a collision with physical evidence, witnesses and often vehicle data, this is frequently the easier of the two.
The second is whether the crash caused the specific injury being claimed. This is where the real contest sits. An insurer rarely argues that a rear-end impact did not occur; it argues that the disc herniation on the scan predates it, that the shoulder had been symptomatic before, that the condition would have progressed anyway. These are medical causation arguments, and they are made in almost every claim involving anything other than an obvious acute injury.
A prior injury to the same area does not defeat a claim. It changes the question from whether the person is injured to what changed after the collision, which makes records predating the crash useful rather than damaging. What does real harm is an unexplained stretch of time before anyone sought care, because it hands that argument a gap to work with.
Damages: An Element, Not a Final Step
Damages is routinely described as what a claim is worth. As an element it means something stricter: that there is an actual compensable loss. Conduct that was careless, even dangerously so, supports no claim if it produced no injury and no loss.
This is why near-misses and property-only collisions occupy a different position from injury claims, and why documentation of loss is not administrative work done at the end. It is proof of an element the claim requires.
What Is Not an Element
Two things commonly listed alongside the elements belong somewhere else.
Comparative negligence is a defence. A defendant raises it once the elements are in issue, and in Nevada it carries unusual weight, because a plaintiff whose share of fault passes the statutory threshold recovers nothing rather than less. Our Nevada personal injury page works through how that threshold operates.
The filing deadline is a limitations question, not an element. It does not describe the claim; it describes how long there is to bring it.
Talk to a Nevada Car Accident Lawyer
Vaksman Khalfin, PC acts for injured people across Nevada from the firm’s Las Vegas office at 10161 Park Run Drive, Suite 150. The first consultation is free, and injury claims are handled on a contingency-fee basis: there is no upfront cost, attorney’s fees are owed only out of a recovery, and fees and case costs are separate items set out in the written agreement. Wider material sits in the Nevada personal injury guides.
Reviewed by Robert B. Vaksman, Partner, Vaksman Khalfin, PC (admitted in Nevada). Last reviewed: 10/23/2026
Frequently Asked Questions
Duty, breach, proximate causation, and damages. The Nevada Supreme Court stated this four-part formulation in Humphries v. New York-New York Hotel & Casino, 133 Nev. 607 (2017), drawing on its earlier decision in Estate of Smith v. Mahoney's Silver Nugget, Inc.
Nevada's published formulation uses four. The five-element version separates factual causation from proximate causation and counts them individually, which is a useful teaching structure but not how the elements appear in Nevada's decisions.
Causation, and specifically the link between the collision and the particular injury claimed. Whether the crash occurred is usually straightforward; whether it produced this disc, this shoulder, this ongoing limitation is what gets contested.
Almost never as between two drivers on a road. Duty becomes a live question when a claim reaches beyond the driver — to an employer, a vehicle owner, or a road authority — because those turn on relationships rather than on the collision.
Falling short of the applicable standard. That standard may come from a traffic statute that states what a driver must do, or from ordinary reasonable care where no specific rule covers the conduct.
Damage to property is a compensable loss, so the damages element can be satisfied without a physical injury. What that produces is a property claim rather than an injury claim, and the two are governed by different considerations.
Yes. A prior condition shifts the causation question to what changed after the collision rather than whether anything is wrong. Records predating the crash tend to help that comparison rather than undermine it.
No. It is a defence raised against a claim, not something a plaintiff must establish. In Nevada it can bar recovery outright rather than merely reduce it, which is why it receives so much attention.
