How to Use This Glossary
When your auto insurance declarations page arrives — whether in the mail or your email inbox — it can read like a foreign language. Terms like bodily injury liability, UM/UIM, and split limits appear without explanation, yet they describe exactly what you are and aren't covered for. This glossary defines every major term you're likely to encounter, organized so you can look up what you need without reading cover to cover.
For a guided walkthrough of the declarations page itself, see Reading an Insurance Declarations Page Without Getting Lost. For broader policy language beyond auto coverage, Insurance Terminology Every Policyholder Should Recognize is a useful companion.
| Minimum required coverage (most states) | Bodily injury and property damage liability (State insurance regulatory requirements vary; check your state's DMV or insurance department.) |
| No-fault states requiring PIP | Approximately 12 states (Insurance Information Institute) |
| Standard split-limit format | Bodily injury per person / per accident / property damage (e.g., 25/50/25) |
| Common deductible range | $250–$2,000 per claim |
| Gap insurance applies when | You owe more on a loan or lease than the vehicle's current market value |
Core Coverage Types Defined
These are the coverage categories you'll see listed on virtually every auto policy. Understanding each one tells you what a claim would — and wouldn't — pay for.
Declarations Page
A summary document (often called the "dec page") that lists your policy number, coverage types, limits, deductibles, and premium. It is the first page of your auto insurance policy.
Liability Coverage
Pays for bodily injury or property damage you cause to others in an at-fault accident. It does not pay for your own injuries or vehicle damage.
Collision Coverage
Pays to repair or replace your vehicle after a crash with another car or object, regardless of who is at fault. Subject to your chosen deductible.
Comprehensive Coverage
Covers damage to your vehicle from non-collision events such as theft, fire, hail, flooding, or hitting an animal. Also subject to a deductible.
Deductible
The dollar amount you pay out of pocket before your insurer pays the remainder of a covered claim. Higher deductibles typically lower your premium.
Premium
The amount you pay — monthly, semi-annually, or annually — to keep your policy active.
Uninsured/Underinsured Motorist Coverage
Pays for your injuries or property damage when the at-fault driver carries no insurance or not enough to cover the full cost of your losses.
Medical Payments (MedPay)
Covers medical expenses for you and your passengers after an accident, regardless of fault. Available in most states as an optional add-on.
Personal Injury Protection (PIP)
Required in no-fault states, PIP covers medical bills, lost wages, and other expenses for you and your passengers after an accident, regardless of who caused it.
Coverage Limit
The maximum dollar amount your insurer will pay for a covered claim. Limits are often expressed as split limits (e.g., 100/300/100) or as a single combined limit.
Endorsement (Rider)
An optional addition or modification to a standard policy that expands or restricts coverage — for example, adding roadside assistance or rental car reimbursement.
Exclusion
A situation, condition, or type of damage that your policy specifically does not cover. Exclusions are listed in the policy documents and vary by insurer.
Gap Insurance is worth noting separately: it covers the difference between what you owe on a car loan or lease and the vehicle's actual cash value if it's totaled. Without it, you could owe money on a car you no longer have.
Once you're familiar with these definitions, Understanding Your Car Insurance Policy Before You Need to Use It puts them in practical context — covering what happens when you actually file a claim.
Coverage Terms and Limits Vary by State and Provider
Auto insurance requirements differ from state to state, and the definitions above reflect general industry usage — not the specific language of any individual policy. Always read your actual policy documents carefully and consult a licensed insurance agent for guidance tailored to your situation. This article is general educational information, not personalized insurance advice.
When a claim does arise, knowing claims-specific language matters just as much. A Glossary of Insurance Claims Terms Every Policyholder Should Recognize covers that territory. For the broader landscape of what insurers pay and how costs are structured, explore the Claims & Costs hub.
~13%
Uninsured drivers on U.S. roads
According to the Insurance Research Council, roughly 1 in 8 drivers carried no auto insurance in a recent study period.
12 states
No-fault states requiring PIP coverage
In these states, your own insurer pays your medical costs after an accident regardless of who caused it, per the Insurance Information Institute.
This article is for general informational purposes only and does not constitute personalized insurance, financial, or legal advice. Coverage terms, limits, and requirements vary by state and by insurer. Read your policy documents carefully and speak with a licensed insurance agent before making decisions about your coverage.
