5.2 Part A: Liability Coverage
Key Takeaways
- Part A provides third-party coverage for bodily injury (BI) and property damage (PD) the insured is legally liable for, and includes the insurer's duty to defend
- Limits are written as split limits (e.g., 100/300/100) or as a Combined Single Limit (CSL); the split format is per-person BI / per-accident BI / per-accident PD
- Supplementary payments — defense costs, up to $250 bail bonds, post-judgment interest, and up to $200/day for lost earnings to attend trial — are paid IN ADDITION to the limit
- The duty to defend ends once the insurer pays the limit of liability through a settlement or judgment
- State minimum limits are low and vary widely (Florida is among the lowest, Alaska's 50/100/25 is the highest minimum), and minimums are usually inadequate for serious claims
What Part A Covers
Part A — Liability Coverage is the heart of the PAP and the coverage states make mandatory. It is third-party coverage: it pays others when an insured is legally liable for an auto accident. Two damage categories apply:
| Coverage | Pays for |
|---|---|
| Bodily Injury (BI) | Others' medical bills, lost wages, pain and suffering, and death claims |
| Property Damage (PD) | Damage to others' property — vehicles, buildings, fences, light poles |
Part A combines both into a single insuring agreement and adds the insurer's duty to defend the insured against covered suits.
How Limits Are Written
Split Limits
The classic format is three numbers — BI per person / BI per accident / PD per accident. Read 100/300/100 as:
- $100,000 maximum BI to any one person
- $300,000 maximum BI for all persons in one accident
- $100,000 maximum PD in one accident
Worked example. You cause an accident, are at fault, and four people are injured. Limits are 100/300/100.
| Claimant | Proven BI | Part A pays | Uncovered gap |
|---|---|---|---|
| Person 1 | $150,000 | $100,000 (per-person cap) | $50,000 |
| Person 2 | $80,000 | $80,000 | $0 |
| Person 3 | $90,000 | $90,000 | $0 |
| Person 4 | $50,000 | $30,000 (only $30K of the $300K remains) | $20,000 |
| Total BI | $370,000 | $300,000 | $70,000 |
No one person can collect more than $100,000, and all BI together is capped at $300,000. PD has its own separate $100,000 limit and is not reduced by BI payments.
Combined Single Limit (CSL)
A CSL — say $500,000 — is one pool covering any mix of BI and PD with no per-person sub-limit. With a $500,000 CSL, a single badly injured claimant could collect the full $500,000.
| Feature | Split Limits | CSL |
|---|---|---|
| Written as | 100/300/100 | $500,000 |
| Per-person BI cap | Yes | No |
| Separate PD pot | Yes | No |
| Flexibility | Lower | Higher |
Supplementary Payments — Paid in Addition
Part A also pays certain costs on top of the limit of liability:
| Supplementary payment | Detail |
|---|---|
| Defense costs | Attorney fees, expert witnesses, court costs |
| Bail bonds | Up to $250 per bond from a covered accident |
| Appeal/attachment bonds | Premium for bonds (insurer need not apply for them) |
| Post-judgment interest | Interest accruing after a judgment |
| Lost earnings to attend trial | Up to $200 per day at the insurer's request |
| Other reasonable expenses | Incurred at the insurer's request |
Defense example: limit $100,000; settlement $100,000; defense costs $30,000 — the insurer pays $130,000 total because defense is supplementary.
Duty to Defend
The insurer has the duty to defend any suit seeking covered damages — even a groundless or fraudulent suit — and may settle a claim as it sees fit. Crucially, the duty to defend ends when the insurer has paid the limit of liability through a settlement or judgment. After that, the insured pays his own defense.
State Minimum Limits
| State | Minimum BI/BI/PD | Note |
|---|---|---|
| California | 30/60/15 (effective 2025) | Recently raised from 15/30/5 |
| Florida | 10/20/10* | *PD plus PIP; among the lowest |
| Texas | 30/60/25 | The familiar "30/60/25" |
| New York | 25/50/10 | Moderate |
| Alaska | 50/100/25 | Highest minimum |
Exam point: state minimums are a floor, not a recommendation. A single severe-injury claim can exceed $100,000, so producers should counsel limits well above the minimum.
Part A Exclusions (Highlights)
Part A does not cover intentional injury, damage to property the insured owns or is in the insured's care, bodily injury to an employee (workers' compensation responds), vehicles used as a public or livery conveyance (with a share-the-expense carpool exception), regular business use of non-covered vehicles, racing on a track, and vehicles with fewer than four wheels.
Who Is an Insured Under Part A
Part A's definition of insured is broader than many candidates expect. It includes "you" and any family member for the ownership, maintenance, or use of any auto or trailer; any person using your covered auto with permission; any person or organization legally responsible for acts of an insured while using your covered auto (vicarious liability); and any person or organization legally responsible for the named insured's or a family member's use of a non-owned vehicle (other than the owner of that vehicle).
This is why an employer can be an additional insured when an employee uses the insured's covered auto on company business — and why the policy must coordinate carefully with commercial coverage.
How Part A Pays a Third Party
Part A does not pay the insured directly; it pays the injured third party (or defends and indemnifies the insured against that party's claim). A typical claim sequence: the third party demands damages, the insurer investigates, accepts the duty to defend, negotiates a settlement within the limit, and pays the claimant. If the case proceeds to trial and a verdict exceeds the limit, the insurer pays its limit and any covered supplementary payments, and the insured is personally exposed for the excess — a powerful argument for buying higher limits or a personal umbrella policy.
Out-of-State Coverage and Financial Responsibility
The PAP contains an out-of-state coverage provision: when an insured drives into a state that requires higher liability limits or a compulsory coverage the insured did not buy (such as no-fault PIP), the policy automatically adjusts to provide at least the minimum required by that state. This keeps the insured legal while traveling and is a tested nuance — the policy effectively reads in the other state's compulsory minimums so the insured is never short on the road.
Limit Selection in Practice
| Insured profile | Reasonable Part A limit | Rationale |
|---|---|---|
| New driver, minimal assets | State minimum to 50/100/50 | Affordability while building a record |
| Typical household, some assets | 100/300/100 | Common "100/300" baseline |
| Higher net worth | 250/500/100 + umbrella | Protects assets from large judgments |
Practical note: liability limits should reflect the assets a judgment could reach, not the value of the car. A driver with a paid-off old vehicle but a home and savings still needs substantial Part A limits, because Part A protects net worth, not the auto.
An auto policy has limits of 50/100/50. What is the maximum Part A will pay for bodily injury to ONE person?
An insured with a $100,000 Part A limit is sued. The insurer pays a $100,000 judgment and incurs $30,000 in defense costs. How much does the insurer pay in total?
Under Part A supplementary payments, the PAP pays bail bonds up to what amount?
When does the insurer's duty to defend under Part A end?