| Number of coverage types in a standard policy | 6–8 (varies by insurer and state) (Insurance Information Institute) |
| States requiring some form of liability coverage | 49 out of 50 (Insurance Information Institute) |
| Common split liability limit format | 100/300/100 (bodily injury per person / per accident / property damage, in thousands) |
| Typical deductible range for collision/comprehensive | $250 – $2,000 (General industry range; varies by insurer) |
| Policy document to review first | Declarations Page (summarizes all coverage, limits, and deductibles) |
How to Use This Glossary
Auto insurance policies are dense, and the terminology can feel deliberately opaque. This reference is organized to help you look up the terms you encounter most often — whether you're reading a new quote, reviewing your declarations page, or dealing with a claim for the first time.
For a deeper look at how two of the most consequential figures in any policy interact, see our article on deductibles and premiums. If you're also navigating vehicle financing, the auto loan terms glossary is a useful companion.
| Number of coverage types in a standard policy | 6–8 (varies by insurer and state) (Insurance Information Institute) |
| States requiring some form of liability coverage | 49 out of 50 (Insurance Information Institute) |
| Common split liability limit format | 100/300/100 (bodily injury per person / per accident / property damage, in thousands) |
| Typical deductible range for collision/comprehensive | $250 – $2,000 (General industry range; varies by insurer) |
| Policy document to review first | Declarations Page (summarizes all coverage, limits, and deductibles) |
Core Coverage Terms
The terms below describe the fundamental building blocks of most auto policies. Knowing what each type of coverage does — and doesn't — protect helps you assess whether your current policy matches your actual needs.
Liability, collision, and comprehensive are the three most commonly referenced coverage types, but your policy may also include personal injury protection (PIP), medical payments coverage (MedPay), and roadside assistance. Each is defined in your full policy document.
Coverage Requirements Vary by State
Each U.S. state sets its own minimum insurance requirements, so the coverage types and limits required where you live may differ significantly from another state. Always verify your state's mandates with your state's Department of Motor Vehicles or insurance commissioner's office. Your insurer or a licensed agent can also confirm whether your current policy meets local requirements.
If you're shopping for or financing a vehicle, visit our Buying a Car hub for guidance that extends beyond insurance into the full purchase process.
Claims and Policy Administration Terms
Understanding what happens after an accident is just as important as knowing what you're covered for beforehand. These terms come up most often during the claims process.
- Claim: A formal request you submit to your insurer asking for payment under your policy following a covered loss.
- Adjuster: An insurance company representative who investigates a claim, assesses the damage, and determines how much the insurer will pay.
- Totaled (Total Loss): A vehicle is declared a total loss when the cost to repair it exceeds a threshold — typically a percentage of its actual cash value — set by the insurer or by state regulation.
- Actual Cash Value (ACV): The market value of your vehicle at the time of a loss, accounting for depreciation. This is the standard payout basis for most comprehensive and collision claims unless you have agreed value or replacement cost coverage.
- Subrogation: After paying your claim, your insurer may recover those costs from the at-fault party. This process generally happens without requiring action on your part.
- Endorsement (Rider): An amendment to your standard policy that adds, removes, or modifies coverage. Gap insurance and rental reimbursement are common endorsements.
This article is for general informational and educational purposes only and does not constitute personalized insurance, financial, or legal advice. Coverage terms, requirements, and availability vary by provider and state. Read your actual policy documents carefully and consult a licensed insurance agent or adviser for guidance specific to your situation.