Glossary

State department of insurance

The state agency that licenses insurers and agents, reviews rates and policy forms, monitors solvency and handles consumer complaints.

Also called: DOI, insurance department, state insurance regulator, division of insurance

Each state has a government agency that regulates the insurance sold within its borders. Most are called the department of insurance, but names vary: New York's Department of Financial Services and Virginia's Bureau of Insurance, part of the State Corporation Commission, are examples. An insurance commissioner, superintendent or director usually leads it.

Insurance in the U.S. is regulated mainly by the states rather than the federal government. Departments license insurance companies and agents, review or approve rates and policy forms through the rate filing process, monitor insurers' finances, examine company practices, investigate fraud in many states and enforce consumer protection and claim-handling laws. They coordinate through the NAIC.

For drivers, the department is the place to check whether a company or agent is licensed, find consumer guides and rate comparisons, and file a complaint about a delayed or denied claim, a cancellation or a billing problem. Filing is free, the insurer must respond, and the department can press for a fix if the company broke the rules, though it cannot act as your lawyer. Complaint counts also feed the NAIC complaint index.

Last reviewed October 4, 2026

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Related terms

Insurance commissioner The official who runs a state's insurance department and enforces its insurance laws; elected in some states, appointed in most. NAIC The standard-setting organization of the chief insurance regulators of the 50 states, D.C. and five U.S. territories, founded in 1871. Rate filing The package of proposed rates, rating rules and supporting data an insurer submits to a state regulator when it wants to change prices. Admitted insurer An insurance company licensed by a state's insurance department, which regulates its rates and forms and backs its claims through the state guaranty fund. Bad faith An insurer's unreasonable handling of a claim, such as denying, delaying or underpaying without a proper basis, which can expose it to damages. NAIC complaint index A score comparing an insurer's share of consumer complaints with its share of premiums; 1.00 is the national baseline and lower is better.

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