An SR22 is a certificate of insurance that verifies that a driver meets the states minimum insurance requirements for auto insurance liability coverage. It is not actually a type of insurance, but rather a form that is filed with the state to prove that the driver has car insurance meeting the minimum coverages required by law. The SR22 is required after serious traffic offenses for drivers in California, such as DUI or wet-reckless suspension/revocation. The insurance company files the form electronically with the DMV. The cost of SR22 insurance is usually higher than regular insurance, and not all car insurance companies issue SR22s. The length of time that a driver must maintain their SR22 status varies and is determined by the court system.