Understanding Part A: Liability Coverage

In the Personal Auto Policy (PAP), Part A: Liability Coverage is arguably the most critical section for the complete Casualty exam guide. It provides protection against legal liability for bodily injury (BI) or property damage (PD) caused by an auto accident for which an insured is legally responsible.

Unlike other sections of the policy that cover the insured's own vehicle (like Collision or Comprehensive), Part A is third-party coverage. This means it pays out to others who are harmed by the insured's negligence. For the exam, you must understand that the insurer has two primary duties under Part A:

  • Duty to Pay: The insurer will pay damages for bodily injury or property damage for which any insured becomes legally responsible.
  • Duty to Defend: The insurer will settle or defend any claim or suit asking for these damages. Crucially, the duty to defend ends when the limit of liability has been exhausted by payment of judgments or settlements.

Before proceeding to calculations, ensure you are comfortable with the terminology by reviewing practice Casualty questions.

Split Limits vs. Combined Single Limits

FeatureSplit LimitsCombined Single Limit (CSL)
StructureThree separate amounts (e.g., 25/50/25)One total amount (e.g., $100,000)
FlexibilityRigid; specific caps for BI and PDFlexible; any portion can be used for BI or PD
Bodily Injury CapLimited by 'Per Person' and 'Per Accident' capsLimited only by the total policy limit
Property Damage CapLimited by the third digit in the splitLimited by the total policy limit

Decoding Split Limits: The 100/300/50 Rule

Most states and insurance policies use Split Limits. On the exam, these are represented as three numbers, such as 100/300/50. It is vital to memorize what each number represents in sequence:

  • First Number (100): The maximum amount the policy will pay for Bodily Injury to any one person in any one accident ($100,000 in this example).
  • Second Number (300): The maximum amount the policy will pay for total Bodily Injury to all persons in any one accident ($300,000 in this example).
  • Third Number (50): The maximum amount the policy will pay for Property Damage per accident ($50,000 in this example).

Example Scenario: If an insured has 25/50/10 limits and causes an accident where three people are injured for $20,000 each, the policy will pay a total of $50,000 (the per-accident limit), not $60,000. Even though each person's claim was under the $25,000 per-person limit, the aggregate cap of $50,000 takes precedence.

Liability Limit Components

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Limit 1
Per Person BI
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Limit 2
Per Accident BI
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Limit 3
Property Damage

Supplementary Payments and Out-of-State Coverage

Part A also includes Supplementary Payments. These are paid in addition to the limits of liability. This is a common trick question on the casualty exam. Supplementary payments typically include:

  • Up to $250 for the cost of bail bonds required because of an accident.
  • Premiums on appeal bonds and bonds to release attachments.
  • Interest accruing after a judgment is entered (post-judgment interest).
  • Up to $200 a day for loss of earnings because of attendance at hearings or trials at the insurer's request.

Additionally, the Out-of-State Coverage provision is important. If an insured drives into a state with higher financial responsibility requirements than their home state, the PAP automatically provides the higher required limits for that accident. It also provides the types of coverage required by that state (such as No-Fault) even if the policy does not normally include them.

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Exam Tip: The Duty to Defend

Remember that defense costs are paid in addition to the policy limits. However, the insurer’s obligation to defend ends once the liability limit has been paid out in a settlement or judgment. If the policy limit is $25,000 and the insurer pays that full amount to the claimant, they are no longer required to pay for the insured's legal defense for further claims arising from that specific accident.

Common Exclusions in Part A

Not every liability is covered under Part A. You should be familiar with these standard exclusions for the Casualty exam:

  • Intentional Injury: Damage or injury caused intentionally by the insured.
  • Property Owned or Transported: Liability coverage does not pay for damage to the insured's own property (that would be Part D).
  • Workers' Compensation: If an employee is injured in the course of employment, Workers' Comp is the primary remedy, and the PAP Liability section excludes it.
  • Public or Livery Conveyance: Using the vehicle to carry persons or property for a fee (e.g., taxi or delivery services), though many modern policies have specific endorsements for ride-sharing.
  • Commercial Use: Large commercial vehicles or use of vehicles in certain business capacities (covered by a Business Auto Policy instead).
  • Fewer than Four Wheels: Vehicles like motorcycles are generally excluded and require their own specific policy or endorsement.

Frequently Asked Questions

If the total claims exceed the per-accident limit (the second number in a split limit), the insurer will only pay up to that limit. The insured is personally responsible for any remaining balance or excess judgment.
No. Under the Personal Auto Policy, defense costs are considered supplementary payments and are paid in addition to the limits of liability.
An insured includes the named insured and any family member for the use of any auto, and any person using the 'covered auto' with the named insured's permission.
The PAP automatically provides liability coverage for a trailer being towed by a covered auto, regardless of whether the trailer itself is specifically listed on the declarations page.