Proof of insurance (POI) is any type of documentation that a person can provide to another individual proving that the person has valid insurance with an insurance company.

The most common form of a POI is a paper card provided by the insurance company listing policy information and effective dates.

Where vehicle insurance is compulsory, many states require that a person carry proof of insurance in their automobiles or on their person while driving. If a person is questioned by a law enforcement official, they must provide proof of insurance. A citation is generally issued if the person cannot provide such documentation.

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