Filing a car accident lawsuit in Wyoming

Wyoming gives injured drivers four years to sue, bars recovery only above 50 percent fault, and caps nothing. Here are the exact rules and statutes behind a Wyoming car accident claim.

ThatCarHitMe.com Editorial
Jun 28, 2026
6 min read

Filing a car accident lawsuit in Wyoming

If another driver hurt you on I-80, US 26, or a county road outside Casper, Wyoming law gives you a specific set of rules for turning that crash into a claim. The general mechanics of a lawsuit are the same everywhere. What changes from state to state are the deadlines, the fault math, the insurance floor, and the limits on what you can recover. Below is what actually governs a car accident case in Wyoming, with the statutes behind each rule.

If you decide you want a lawyer to handle it, you can find a Wyoming attorney here. If you're still gathering facts, keep reading first.

You have four years to file

Wyoming gives injured drivers four years from the date of the crash to file a personal injury lawsuit.1 That comes from Wyo. Stat. § 1-3-105(a)(iv)(C), which sets a four-year limit on a claim for "an injury to the rights of the plaintiff" not covered by another rule.1 Damage to your car or other property runs on the same four-year clock, under subsection (a)(iv)(B).1

Four years is generous by national standards; plenty of states cut you off at two or three. Don't treat the extra time as a reason to wait. Evidence disappears, the other driver's insurer starts building its own version of events on day one, and claims against a city, county, or state agency (say, a crash with a government vehicle or a road-design dispute) follow separate, earlier notice rules. Miss the four-year deadline on an ordinary claim, though, and the court will almost always throw the case out no matter how strong it is.

How Wyoming splits the blame

Wyoming is an at-fault state, and it uses modified comparative fault with a 50 percent bar. Under Wyo. Stat. § 1-1-109, your own share of the fault does not block your recovery as long as it is "not more than fifty percent" of the total fault.2 Cross that line, so that you are 51 percent or more responsible, and you recover nothing.2

If you are allowed to recover, the court reduces your damages by your percentage of fault.2 A $100,000 award drops to $70,000 if the jury puts you at 30 percent. At exactly 50 percent you still collect half; at 51 percent you collect nothing. Because that one point decides everything, fault allocation is usually the real fight in a Wyoming car case, not the size of the injury.

Weather makes this concrete here. Cheyenne alone averages more than 50 inches of snow a year, and ground blizzards and high wind shut down stretches of I-80 every winter.3 Ice and blowing snow don't change the fault rule. A driver who rear-ends you on a slick road is still negligent, but the insurer will argue you were going too fast for conditions to push some percentage onto you. Under the 50 percent bar, that argument has teeth.

Wyoming puts no cap on your damages

This is where Wyoming is unusually favorable to injured people. The state constitution flatly forbids the legislature from capping injury damages. Article 10, Section 4 says "no law shall be enacted limiting the amount of damages to be recovered for causing the injury or death of any person."4 There is no ceiling on your medical bills, lost income, or pain and suffering in an ordinary car crash, and no cap on punitive damages either.4

The one carve-out in that section lets lawmakers cap noneconomic damages in medical-malpractice suits, and it doesn't reach car accidents. Lawmakers haven't enacted such a cap anyway.4

Punitive damages are on the table when the at-fault driver did something worse than ordinary carelessness. In Danculovich v. Brown, a wrongful-death case out of a drunk-driving rollover near Wheatland, the Wyoming Supreme Court held that driving under the influence can support a finding of willful and wanton misconduct and an award of exemplary damages.5 You have to prove that conduct by clear and convincing evidence, but if you do, the constitution bars any cap on the number.4

The insurance rules behind your claim

Wyoming is a pure tort state. There is no no-fault system and no personal injury protection (PIP) here, so there's no first-party PIP deadline to worry about; you pursue the at-fault driver and that driver's insurer.6 Insurers do have to offer optional Medical Payments Coverage, which pays medical or funeral costs regardless of who caused the crash, but that's a coverage you buy, not a state benefit.6

The minimum liability limits every Wyoming driver must carry are low: $25,000 for injury to one person, $50,000 per accident, and $20,000 for property damage, under Wyo. Stat. § 31-9-405(b)(ii).7 Written as 25/50/20, those numbers vanish fast against a hospital stay. That gap is exactly what uninsured and underinsured motorist coverage fills.

Wyoming requires uninsured motorist (UM) coverage in every auto liability policy, and it stays there unless the named insured rejects it.8 Once you reject it, the insurer doesn't have to keep offering it on renewals unless you ask for it back in writing.8 Underinsured motorist (UIM) coverage is different: Wyoming does not require it at all, so it's a purely optional add-on.8 On rural highways where a minimum-limits driver can cause catastrophic harm, whether you carry UM and UIM often matters more than the other driver's policy.

Reports and driver conduct

The crash report is usually the first document that matters. Wyoming crash reports come from the Wyoming Department of Transportation's Highway Safety Program, which charges $3.00 per report plus a $2.50 fee for card payments.9 You can start with the Wyoming crash report page.

What the other driver was doing helps prove fault. Wyoming bans texting behind the wheel under Wyo. Stat. § 31-5-237, which makes it illegal to write, send, or read a text-based message on a handheld device while driving.10 It's a primary offense, meaning an officer can pull a driver over for it alone, and the fine runs up to $75.1011 The ban is narrow, though: dialing a number and hands-free use are both exempt, so a driver on a handheld call isn't automatically breaking this law.10 A citation for texting is strong evidence of negligence in your civil case.

Motorcycle crashes carry their own Wyoming rules. Helmets are mandatory only for riders under 18; adult riders have no helmet requirement under Wyo. Stat. § 31-5-115.12 The same statute makes lane-splitting and lane-filtering illegal, so a rider weaving between rows of stopped or slow traffic can be assigned comparative fault if a crash follows (two motorcycles may still share one lane side by side by consent).12 If your vehicle lost market value in the wreck, that's a separate claim, and the Wyoming diminished value page covers how that works.

What to do next

Get the crash report, document your medical treatment, and watch the four-year clock, especially if a government entity is involved. Because fault allocation drives the whole case under the 50 percent bar, the sooner the facts are locked down, the better your position. If you want representation, you can find a Wyoming car accident attorney.

This is general information about Wyoming law, not legal advice for your specific situation.

Sources

  1. Wyo. Stat. § 1-3-105 (limitation of actions; four years for personal injury and for injury to personal property). https://law.justia.com/codes/wyoming/title-1/chapter-3/section-1-3-105/

  2. Wyo. Stat. § 1-1-109 (comparative fault; recovery barred if the claimant is more than 50 percent at fault). https://law.justia.com/codes/wyoming/title-1/chapter-1/section-1-1-109/

  3. National Weather Service, Cheyenne, Wyoming climate data. https://www.weather.gov/cys/cliplotmntable

  4. Wyoming Constitution, Article 10, Section 4 (no law limiting damages for injury or death). https://sos.wyo.gov/Forms/Publications/WYConstitution.pdf

  5. Danculovich v. Brown, 593 P.2d 187 (Wyo. 1979). https://www.courtlistener.com/opinion/1134542/danculovich-v-brown/

  6. Wyoming Department of Insurance, auto insurance consumer information (Medical Payments Coverage; no PIP product). https://doi.wyo.gov/consumers/insurance-topics

  7. Wyo. Stat. § 31-9-405 (minimum motor vehicle liability limits, 25/50/20). https://law.justia.com/codes/wyoming/title-31/chapter-9/article-4/section-31-9-405/

  8. Wyo. Stat. § 31-10-101 (uninsured motorist coverage required; rejection; underinsured coverage not mandated). https://law.justia.com/codes/wyoming/title-31/chapter-10/section-31-10-101/

  9. Wyoming Department of Transportation, Highway Safety Program, Requesting Crash Reports. https://www.dot.state.wy.us/home/dot_safety/crash-reports/requesting-crash-reports.html

  10. Wyo. Stat. § 31-5-237 (prohibition on texting while driving; fine up to $75; dialing and hands-free use exempt). https://law.justia.com/codes/wyoming/title-31/chapter-5/article-2/section-31-5-237/

  11. Governors Highway Safety Association, distracted driving state laws (Wyoming: texting banned for all drivers, primary enforcement). https://www.ghsa.org/state-laws-issues/distracted-driving

  12. Wyo. Stat. § 31-5-115 (motorcycle operation; helmet required under 18; operating between lanes of traffic prohibited). https://law.justia.com/codes/wyoming/title-31/chapter-5/article-1/section-31-5-115/

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Written by: ThatCarHitMe.com Editorial

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