Truck Accident Laws in Idaho (2026): Deadlines & Liability

A crash with a large commercial truck in Idaho is governed by two layers of law at once: Idaho's own rules on deadlines, fault, damages, and insurance, and a detailed set of federal safety regulations that apply to interstate trucking companies and their drivers. Together they shape who can be held responsible and how long you have to act. This page explains both, as general legal information rather than legal advice.

The deadline to sue in Idaho

Idaho's statute of limitations for an injury to the person is two years under Idaho Code 5-219(4), measured from the date of the injury. A wrongful-death action, brought by the decedent's heirs or personal representative under Idaho Code 5-311, is also subject to the two-year limit in Idaho Code 5-219(4), generally running from the date of death.

A few situations change the deadline. The period can be tolled for an injured minor, who generally has until two years after turning 18, and for a legally incompetent person. If a government entity is a defendant, the Idaho Tort Claims Act requires a notice of claim within 180 days, far sooner than the two-year deadline. Because the exceptions are narrow and courts enforce the limit strictly, the safest course is to treat two years as a firm deadline.

How fault works: Idaho's 50% bar

Idaho uses modified comparative negligence under Idaho Code 6-801. The statute provides that contributory negligence does not bar recovery if your fault "was not as great as" the fault of the party you are suing, and that any damages are reduced in proportion to your own share of fault. In practice this is the 50% bar: you can recover if you are 49% at fault or less, but at 50% or more your claim is barred entirely.

Idaho law also allocates fault among multiple responsible parties, which matters in a truck case where responsibility may be divided among the driver, the motor carrier, and others. Identifying every responsible party is important to a full recovery.

No-fault status: Idaho is an at-fault state

Idaho is not a no-fault state. It does not require personal injury protection (PIP) coverage, and there is no statutory injury threshold you must cross before you can sue. Instead, the driver and company at fault for the crash are directly responsible for the resulting harm, and you pursue them (and their insurers) for medical bills, lost income, pain and suffering, and other losses. This differs from no-fault states, where an injured person first turns to their own PIP coverage and must clear a threshold before stepping outside the no-fault system.

Damage caps in Idaho

Unlike most states, Idaho caps noneconomic damages, the category that covers pain and suffering, mental anguish, and similar losses. Under Idaho Code 6-1603, the cap started at $250,000 and is adjusted each July 1 based on the percentage change in the Idaho Industrial Commission's average annual wage, so the current figure is considerably higher than the original amount. The cap does not apply to causes of action arising out of willful or reckless misconduct, or out of conduct that the trier of fact finds beyond a reasonable doubt would constitute a felony. Economic damages, such as medical bills and lost income, are not capped. Because the noneconomic figure changes annually, confirm the current amount for your case.

Insurance context in Idaho

Idaho requires every driver to carry minimum auto liability coverage of $25,000 per person and $50,000 per accident for bodily injury, plus $15,000 for property damage, under Idaho's financial-responsibility law (Idaho Code 49-1212). Those minimums are modest, but a commercial truck operating in interstate commerce is subject to the much higher federal financial-responsibility rules discussed below, which is one reason trucking cases differ from ordinary car crashes.

Federal FMCSA rules that apply to trucking companies

Most large commercial trucks and the companies that run them are regulated by the Federal Motor Carrier Safety Administration (FMCSA) under Title 49 of the Code of Federal Regulations. These rules set the safety baseline, and a violation can be powerful evidence of negligence:

• Hours of service (49 CFR Part 395): a property-carrying driver may drive no more than 11 hours after 10 consecutive hours off duty, cannot drive beyond the 14th hour after coming on duty, must take a 30-minute break after 8 hours of driving, and is capped at 60 hours in 7 days or 70 hours in 8 days.
• Electronic logging devices (49 CFR Part 395): most drivers must record their hours with an ELD, and carriers must retain the data, which can confirm or contradict a fatigue defense.
• Driver qualification and CDL (49 CFR Part 391): carriers must verify a driver's license, medical fitness, and record before putting them on the road.
• Drug and alcohol testing (49 CFR Part 382): carriers must conduct pre-employment, random, and post-accident testing and use the FMCSA Clearinghouse.
• Inspection, repair, and maintenance (49 CFR Part 396): carriers must systematically inspect and maintain their vehicles and keep records.

Who can be liable after a truck crash

A truck case routinely involves more potential defendants than a typical car crash, and many are corporate. Depending on the facts, responsibility may extend to:

• The driver, for negligent driving such as speeding, distraction, or fatigue.
• The motor carrier (trucking company), often vicariously for its driver's on-the-job conduct, and directly for negligent hiring, training, supervision, or retention, or for pressuring drivers past the hours-of-service limits.
• A broker or shipper, in some circumstances.
• A cargo loader, when improper or overweight loading causes or worsens a crash.
• A parts or vehicle manufacturer, when a defective brake, tire, or component contributes.

Identifying every responsible party matters because, under Idaho's apportionment rule, each defendant generally pays only its share of fault, and additional defendants can mean additional insurance coverage.

Federal minimum insurance for trucks

Under 49 CFR 387.9, a for-hire motor carrier transporting non-hazardous general freight in interstate commerce must maintain at least $750,000 in liability insurance. Carriers hauling certain hazardous materials must carry far more, up to $5,000,000. That $750,000 baseline, set by the Motor Carrier Act of 1980, dwarfs Idaho's $25,000 minimum for ordinary drivers and is a major reason truck cases are handled differently from car-accident claims.

Why evidence preservation matters early

Much of the proof in a truck case lives in the truck and the carrier's files: ELD and logbook records, the engine control module (the truck's onboard data recorder or black box), maintenance and inspection logs, dispatch records, and the post-accident drug-and-alcohol test. Some of that data can be overwritten or routinely discarded within months. A timely spoliation or evidence-preservation letter to the carrier, sent early, helps ensure this information is kept rather than lost.

How to evaluate an Idaho truck-accident claim

If you have been injured, preserve what you can: the police report, photographs of the scene and vehicles, the names of witnesses, and your medical records. Get medical care and keep documentation of your treatment and lost income. Many Idaho personal-injury attorneys evaluate truck cases on a contingency-fee basis and offer a free initial consultation, meaning no upfront fee, though no lawyer can guarantee a result. Because the two-year deadline is firm and evidence can disappear, it is wise to consult a licensed Idaho attorney promptly rather than waiting.