LAS VEGAS — Comparative negligence is one of the most influential legal doctrines in personal injury cases, shaping everything from settlement amounts to courtroom strategies. In Nevada, where traffic collisions, casino slip-and-falls, workplace injuries, and pedestrian accidents are common, understanding how fault is divided is essential for anyone involved in an accident claim.

This expanded explainer breaks down Nevada’s comparative negligence framework, how fault percentages are determined, why the 51-percent rule is critical, and how insurers and attorneys argue these cases. It also includes examples, practical impacts, and the policy reasoning behind the law.

What Is Comparative Negligence?

Comparative negligence is a legal rule that distributes fault among all individuals or entities involved in an incident. Instead of determining who was entirely at fault, the system recognizes that responsibility is often shared.

Under comparative negligence:

• Each party receives a percentage of fault
• An injured person’s damages are reduced by their share of fault
• Liability is not all-or-nothing unless the threshold is exceeded

The central purpose is fairness — compensation should reflect actual responsibility.

Nevada’s Approach: Modified Comparative Negligence (51% Rule)

Nevada follows modified comparative negligence, governed by NRS 41.141, which states:

• A plaintiff can recover damages if they are 50 percent or less at fault
• A plaintiff cannot recover damages if they are 51 percent or more at fault
• If eligible, the plaintiff’s damages are reduced proportionally to their fault

This cutoff — often called the 51-percent bar — determines whether a case can proceed.

Why Nevada Chose This System

Nevada lawmakers adopted this rule to balance three goals:

1. Encourage fairness in shared-fault cases
2. Prevent recovery for plaintiffs who are primarily responsible for their own injuries
3. Discourage frivolous claims where the claimant is mostly at fault

More than 30 states use a similar modified comparative negligence model.

How Fault Percentages Are Determined

Determining fault is a factual analysis involving multiple sources of evidence. In Nevada, fault can be assigned by:

• Insurance adjusters during claims negotiations
• Attorneys during pre-suit evaluations
• Judges or juries during litigation

Key Evidence Considered

1. Police Reports and Traffic Citations
   Officers document positions of vehicles, statements, skid marks, debris fields, and traffic violations.
2. Video Footage
   Nevada casinos, hotels, parking garages, and intersections heavily rely on surveillance, often providing clear evidence of conduct.
3. Witness Statements
   Eyewitness accounts shape how adjusters and juries interpret the sequence of events.
4. Accident Reconstruction
   Experts may create simulations based on vehicle speed, impact angles, and physics.
5. Medical Records
   These establish timing and causation of injuries.
6. Photographs and Scene Evidence
   Weather, lighting, road conditions, hazards, and signage can influence fault.
7. Black Box Data
   Many modern vehicles record speed, braking, and steering input before a crash.

The ultimate goal is to piece together what happened and determine how much each party contributed.

How Fault Is Assigned in Practice

Assigning fault isn’t an exact science. Nevada law requires that fault be allocated based on the conduct of the parties and how that conduct contributed to the accident.

Examples of Fault Allocation

• A driver who rear-ends another vehicle may be 80 percent at fault, but if the lead driver’s brake lights were not working, they may be assigned 20 percent.
• A restaurant may be 70 percent at fault for a slippery floor, while a patron who ran through the area may be 30 percent responsible.
• A pedestrian who crosses outside a marked crosswalk may share fault with a driver who was texting.

Each percentage directly affects the final payout.

Why Insurance Companies Rely on Comparative Negligence

Insurers routinely use comparative negligence to reduce payouts. Their strategies include:

1. Assigning Higher Fault to the Victim
   Even shifting blame by 10 percent can reduce the payout significantly.
2. Arguing Preexisting Conditions
   Insurers often claim injuries existed prior to the accident, reducing causation-related fault.
3. Overemphasizing Minor Unsafe Behavior
   Small mistakes by the claimant — glancing at a phone, wearing heels, walking distracted — can be used to claim partial fault.
4. Using Recorded Statements
   Adjusters may use a claimant’s own words to assign additional liability.

Understanding the system empowers injured victims to avoid common pitfalls.

Comparative Negligence in Common Nevada Accidents

1. Car Crashes

Nevada streets — including Sahara Avenue, Flamingo Road, Tropicana Avenue, Las Vegas Boulevard, and I-15 — see frequent collisions. Examples:

• A driver speeds through a yellow light while another makes a late left turn.
• A motorist is rear-ended but had no functioning brake lights.
• A driver merges improperly but the other vehicle was traveling above the speed limit.

Fault is divided based on actions leading up to the impact.

2. Casino and Resort Slip-and-Falls

With constant foot traffic, spills are common in Las Vegas resorts. Comparative fault may apply if:

• A casino failed to rope off a wet floor
• Cleanup was delayed
• The injured person was distracted or ignored warning signs

Both parties’ conduct is evaluated.

3. Pedestrian Accidents

Pedestrian collisions frequently occur near the Strip, Fremont Street, and high-traffic intersections.

Fault may be split if:

• A driver was speeding, distracted, or failed to yield
• A pedestrian crossed mid-block or against the signal

Nevada pedestrians can still recover unless they exceed the 51-percent bar.

4. Multi-Vehicle Pileups

Four-car and five-car collisions on U.S. 95 or the Spaghetti Bowl often involve shared fault. Each driver’s actions — speed, following distance, attention — contribute to their percentage.

5. Motorcycle Crashes

Comparative negligence is common when:

• Drivers fail to see motorcycles
• Motorcyclists lane-split or speed
• Road hazards are present

The smaller vehicle does not automatically receive full fault protection.

6. Workplace or Construction Accidents

In some cases, third-party negligence claims involve comparative fault among:

• Subcontractors
• Equipment operators
• Property owners
• Injured workers who failed to follow safety protocols

Workers’ compensation may limit some claims but fault analysis still applies in third-party actions.

Detailed Examples of Fault Calculations

Example 1: Intersection Collision

A driver turns left without yielding while another enters the intersection at 10 mph over the speed limit.

• Turning driver: 70 percent at fault
• Speeding driver: 30 percent at fault
• Damages: $120,000

Speeding driver’s recovery: $84,000.

Example 2: Supermarket Slip-and-Fall

A spill sat uncleaned for 30 minutes. A shopper slips while jogging down the aisle.

• Store: 65 percent at fault
• Shopper: 35 percent at fault
• Damages: $60,000

Recovery: $39,000.

Example 3: Nighttime Jaywalking

A driver traveling 15 mph over the limit hits a pedestrian crossing mid-block.

• Pedestrian: 55 percent at fault
• Driver: 45 percent at fault

Because the pedestrian exceeds the 50-percent threshold, recovery is barred.

Why Fault Percentages Matter So Much

Even small changes can dramatically affect compensation. Consider:

• A case worth $500,000
• A 5-percent fault increase reduces compensation by $25,000
• A shift from 50 to 51 percent eliminates the claim entirely

This is why attorneys aggressively dispute fault allocation.

How Lawyers Challenge Fault Assignments

Attorneys commonly use the following methods:

1. Push for Additional Evidence

Lawyers may subpoena footage from nearby casinos, bars, or traffic cameras.

2. Retain Expert Witnesses

Experts in biomechanics, accident reconstruction, or engineering may challenge insurer assessments.

3. Highlight Defendant Negligence

Showing the defendant violated safety rules or statutes can reduce comparative fault.

4. Challenge Bias or Assumptions

Attorneys attack conclusions drawn from incomplete or improperly interpreted evidence.

5. Argue Reasonable Behavior

If the plaintiff acted reasonably under circumstances, their assigned fault may be reduced.

These strategies often shift fault percentages before trial or during settlement talks.

Policy Goal: Encouraging Responsible Conduct

Comparative negligence aims to:

• Promote accountability
• Encourage reasonable safety precautions
• Ensure compensation reflects true responsibility

Nevada lawmakers intentionally designed the system to reduce windfalls and penalize conduct that meaningfully contributes to accidents.

Key Takeaways

• Nevada uses modified comparative negligence with a 51-percent bar
• Injured people can recover damages even when partially at fault
• Compensation is reduced by the victim’s percentage of fault
• Insurers aggressively use comparative negligence to reduce payouts
• Fault allocation directly impacts case value and litigation strategy
• Evidence, expert analysis, and attorney advocacy significantly influence percentages