On the Idaho Property & Casualty exam, the Personal Automobile Policy appears both as a standard ISO-style contract and as a set of Idaho auto statutes you must apply. This standalone guide reviews the policy's coverage parts, then drills into the Idaho overlay: the 25/50/15 financial-responsibility minimums, the at-fault (tort) system with modified comparative negligence, the required offer of uninsured- and underinsured-motorist coverage, and cancellation/nonrenewal notice. The Idaho-specific material is where most state credit is earned.

Policy structure (the national base)

The Personal Auto Policy (PAP) is a packaged contract organized into lettered parts:

• Part A — Liability: pays bodily injury (BI) and property damage (PD) the insured is legally liable for; the insurer provides a defense, and defense costs are paid in addition to the limit.
• Part B — Medical Payments: pays medical/funeral costs for occupants regardless of fault.
• Part C — Uninsured/Underinsured Motorists: pays the insured's injuries when the at-fault party is uninsured or underinsured.
• Part D — Coverage for Damage to Your Auto: Collision and Other Than Collision (Comprehensive), each with a deductible, settled at Actual Cash Value (ACV).
• Part E — Duties After an Accident or Loss and Part F — General Provisions.

Limits may be written as split limits (e.g., 100/300/50) or as a Combined Single Limit (CSL). Insureds include the named insured, resident spouse, resident relatives, and permissive users. Eligible vehicles are private passenger autos, pickups, and vans not used mainly for business. That framework is national; Idaho governs the limits and the liability environment around it.

Idaho uses a tort (at-fault) liability system

Idaho is an at-fault / tort state, not a no-fault state. The driver who causes a crash is financially responsible, and the injured party collects from that driver's liability coverage or by filing suit. This is why liability coverage and financial responsibility dominate Idaho auto law.

Idaho applies modified comparative negligence. The rule to remember: a claimant whose share of fault is as great as the other party's—commonly described as the 50% bar—is generally barred from recovering (verify the exact threshold). Below that line the claimant may recover, but the award is reduced by their own percentage of fault. (Contrast this with pure comparative states, where even a heavily at-fault claimant recovers a sliver.)

Financial responsibility: 25/50/15

Every owner of a registered Idaho vehicle must maintain proof of financial responsibility, usually by carrying liability insurance at or above the minimum split limits commonly cited as (verify the current statutory figures):

• $25,000 bodily injury per person
• $50,000 bodily injury per accident
• $15,000 property damage per accident

Shorthand: "25/50/15." These are statutory floors; producers routinely recommend higher limits. Besides buying a policy, Idaho's financial responsibility law may allow a motorist to demonstrate responsibility by posting an approved bond or deposit (verify the current options). Driving without the required coverage is generally a misdemeanor that can bring fines and license consequences, and certain violations may require filing an SR-22 certificate to prove ongoing coverage.

Uninsured and underinsured motorist rules

This is a heavily tested Idaho area, and the wording matters:

• Idaho insurers writing auto liability coverage are generally required to offer uninsured/underinsured motorist (UM/UIM) bodily injury coverage, which the insured may reject only in writing.
• Because the coverage is offered (with a written-rejection requirement) rather than flatly mandatory, an insured who never rejects it in writing generally ends up with the coverage.
• Uninsured Motorist (UM) responds when the at-fault driver has no liability insurance (and typically a hit-and-run driver).
• Underinsured Motorist (UIM) pays the gap when the at-fault driver has insurance but not enough to cover the injuries.
• The other driver must be legally at fault for UM/UIM to respond.

Memorize the headline: in Idaho, UM/UIM must be offered and may be rejected only in writing.

Optional and physical-damage coverages

• Medical Payments (Med Pay) is optional and pays medical/funeral costs regardless of fault. Idaho does not mandate PIP/no-fault, so Med Pay is how a driver buys first-party medical coverage.
• Collision and Comprehensive (Other Than Collision) are optional but typically required by a lender. Hitting an animal is Comprehensive, not Collision.
• Towing and labor and rental reimbursement are common optional add-ons; gap coverage pays the difference between a loan/lease balance and the vehicle's ACV after a total loss.

Cancellation and nonrenewal

Idaho regulates how an insurer may end a personal auto policy, and the cancellation notice generally must state the reason for the action. The timelines below are commonly cited (verify current figures):

• Mid-term cancellation generally requires advance written notice (often around 30 days, with a shorter window—about 10 days—allowed for nonpayment of premium).
• Once a policy has been in force a set period, cancellation is limited to specific reasons such as nonpayment, license suspension/revocation, or fraud/material misrepresentation.
• Nonrenewal at the end of the term generally requires advance written notice so the insured can find replacement coverage.

Keep the shorter nonpayment-cancellation notice distinct from the longer ordinary cancellation / nonrenewal notice.

Required vs. optional coverages

Key Idaho numbers to memorize

Common exam traps

• Idaho is at-fault (tort), not no-fault. There is no mandatory PIP.
• 25/50/15—the $15k is property damage; don't slide it into a BI slot, and don't borrow Illinois's $20k figure.
• UM/UIM is "offered," rejectable only in writing—don't overstate it as flatly mandatory, but remember a verbal rejection is not enough.
• Modified comparative negligence: at the ~50% bar the claimant recovers nothing (verify the exact threshold).
• UIM fills the gap up to your UIM limit minus the other driver's BI payment; it is not a separate full payout.
• Hitting an animal is Comprehensive, not Collision (national rule still applies).
• Liability defense costs are paid on top of the limit (national rule that still applies in Idaho).

Quick recap

• The PAP's Parts A–F structure is national; Idaho sets the limits and legal framework.
• Idaho is a tort/at-fault state using modified comparative negligence—a claimant at roughly the 50% fault bar recovers nothing (verify).
• Minimum liability is 25/50/15 (verify), and owners of registered vehicles must maintain it.
• Uninsured/Underinsured Motorist BI must be offered and can be rejected only in writing.
• Idaho has no mandatory no-fault/PIP; Med Pay and physical damage are optional.
• Cancellation for nonpayment uses a shorter (~10-day) notice; ordinary cancellation/nonrenewal uses a longer (~30-day) notice, and the notice must state the reason.