Legal & Regulatory

File and Use State

In file-and-use states, insurers file rate and form changes with the insurance department and may implement them immediately—subject to the department's right to later review and disapprove if non-compliant.

Last reviewed: May 2026 · Editorial methodology

Definition

A 'file and use' state is one in which insurance companies may file new or revised rates and policy forms with the state insurance department and immediately begin using them in the marketplace, without waiting for regulatory pre-approval. The insurance department retains the right to review filed materials and subsequently disapprove rates or forms that are inadequate, excessive, unfairly discriminatory, or otherwise non-compliant with state law—but the insurer can write business during this review period. File-and-use systems allow faster product innovation and rate adjustments compared to prior approval states, theoretically benefiting insurers that need to respond quickly to changing market conditions, loss trends, or competitive pressures. States with file-and-use systems for property-casualty insurance include Illinois, New York (for some lines), and several others. A variant is the "use and file" system, where insurers can use new rates before filing at all, with the filing required within a specified period (commonly 15–30 days) after implementation. The regulatory philosophy behind file-and-use reflects a belief in competitive market discipline: if rates are excessive, competition will drive them down without need for prior approval. Critics argue that file-and-use systems can allow inadequate rates to destabilize markets before regulators can intervene.

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Tip

Glossary definitions are educational. Always check your own policy language — insurers can define common terms differently from one another. When in doubt, request a written explanation from your agent.

Related terms

Prior Approval StateIn prior approval states, insurance companies must file proposed rate or form changes and receive the department's affirmative approval before implementing them in the market.State Insurance CommissionerThe state insurance commissioner (or superintendent/director of insurance) is responsible for licensing insurers and agents, approving rates and policy forms, handling consumer complaints, and enforcing insurance laws within their state.Admitted CarrierAdmitted carriers have met state licensing, financial, and regulatory requirements and are subject to state oversight of their rates, forms, and claims practices—giving policyholders access to state guaranty fund protection.NAICThe National Association of Insurance Commissioners — sets model laws and publishes complaint data.
Source: Cover Forge USA editorial team|Last verified: May 2026|Methodology
Definitions are educational and may be simplified. Always refer to your policy contract and consult a licensed agent for terms that affect coverage decisions.
CF

Cover Forge USA Editorial Team

Editorial Lead

This article was researched and written by the Cover Forge USA editorial team against federal sources (NAIC, CMS, FEMA, DOL, SSA, state DOIs) and standard policy forms. Bylines organize content by topic — they do not assert individual licensure. See our editorial-policy for details.

Reviewed June 2026

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