Introduction to UM and UIM Coverage
In the world of casualty insurance, liability coverage is designed to pay for damages you cause to others. However, what happens when you are the victim of an accident caused by someone who lacks insurance or has inadequate limits? This is where Uninsured Motorist (UM) and Underinsured Motorist (UIM) coverages become critical. For the complete Casualty exam guide, understanding these coverages is essential as they represent a unique first-party benefit that functions like a third-party liability policy.
UM and UIM are typically additions to the Personal Auto Policy (PAP). While liability insurance protects your assets when you are at fault, UM/UIM protects your person and your family when someone else is at fault but cannot pay. Most state exams focus on the Bodily Injury aspect of these coverages, though some states also offer Uninsured Motorist Property Damage (UMPD).
UM vs. UIM: Key Differences
| Feature | Uninsured Motorist (UM) | Underinsured Motorist (UIM) |
|---|---|---|
| Triggering Event | At-fault driver has no insurance or is a hit-and-run. | At-fault driver has insurance, but limits are lower than the insured's UIM limits. |
| Insurer's Role | Steps into the shoes of the at-fault party to pay the insured. | Pays the difference between the at-fault party's limits and the insured's loss (subject to limits). |
| Legal Requirement | Often mandatory or must be specifically rejected in writing. | Often optional, though frequently packaged with UM. |
Defining the Uninsured Motorist
On the casualty insurance exam, you must be able to identify what constitutes an "uninsured motor vehicle." Under the standard ISO Personal Auto Policy, an uninsured vehicle includes:
- A vehicle that has no liability insurance or bond in place at the time of the accident.
- A vehicle that has insurance, but the limit is lower than the minimum limit required by the financial responsibility law of the state where the insured's vehicle is principally garaged.
- A hit-and-run vehicle, provided the owner or operator cannot be identified.
- A vehicle insured by a company that has become insolvent or denies coverage.
It is important to note that vehicles owned by the insured, or vehicles designed for off-road use (while off-road), generally do not qualify as "uninsured motor vehicles" under this definition.
Exam Tip: The Hit-and-Run Rule
For hit-and-run claims to trigger UM coverage, most policies require actual physical contact between the vehicles. If a "phantom vehicle" causes you to swerve and hit a tree without touching your car, UM coverage may not apply unless there is independent witness testimony, depending on specific state laws.
Underinsured Motorist (UIM) Mechanics
Underinsured Motorist coverage applies when the at-fault driver has liability insurance, but their limit is insufficient to cover the full extent of the insured's injuries. There are two primary ways UIM is calculated, depending on the state:
- Difference-in-Limits (Reduced by): The insured's UIM limit is reduced by the amount recovered from the at-fault party. For example, if you have $100,000 in UIM and the at-fault party has $50,000, your UIM will pay a maximum of $50,000 ($100k - $50k).
- Excess (Add-on): The UIM limit is added on top of the at-fault party's limit. In the same scenario, you could potentially access the full $100,000 of your UIM after the initial $50,000 is exhausted.
Candidates should practice practice Casualty questions to ensure they can calculate these settlements accurately under various scenarios.
Common UM/UIM Exclusions
Arbitration and Claims Settlement
Because UM/UIM claims involve the insured making a claim against their own insurance company for the negligence of another, disputes often arise. If the insured and the insurer cannot agree on two specific points, they may enter arbitration:
- Whether the insured is legally entitled to recover damages (determining fault).
- The amount of damages owed.
In the standard arbitration process, each party selects an arbitrator. These two select a third "umpire." A decision joined by any two of the three is binding. It is important to note that arbitration usually applies only to these two specific issues, not to coverage disputes (i.e., whether the policy was in force).