Department of Insurance
The state agency responsible for licensing insurers, reviewing rates, and enforcing insurance laws. Each U.S. state has its own DOI.
A Department of Insurance (DOI) is the state agency that regulates insurance within a state. It licenses insurers and producers, reviews policy forms and rates, investigates consumer complaints, and conducts market conduct examinations. The head is usually called the Insurance Commissioner or Superintendent.
For insurance AI, the DOI is the actual enforcement authority. The NAIC writes model guidance, but a state’s DOI decides whether to adopt it, how to interpret it, and how to examine carriers for compliance. That means carriers face 50-plus regulatory regimes, even when the NAIC baseline is widely adopted.
State DOIs also respond to federal initiatives. When Executive Order 14365 directed federal agencies to challenge state AI laws, state DOIs and their NAIC association pushed back, arguing that state insurance regulation is protected by the McCarran-Ferguson Act. See our guide to AI governance in insurance.