An SR22 is simply a certificate sent electronically to the Department of Licensing (DOL) that documents you have active car insurance. Sometimes an SR22 is referred to as a Certificate of Financial Responsibility filing.
Although referred to as “SR-22 insurance,” An SR-22 is not actually insurance but instead is simply an endorsement to regular insurance policy. This endorsement is filed with the state as proof that you have insurance. The SR22 notifies the state that you have insurance in force and promises to notify them if your policy cancels.