Car insurance rates in Illinois, similar to that of rates of many other states, are managed by the federal and local state government. For that reason all car insurance rates charged for insurance protection of any form should certainly be filed with the State of Illinois insurance regulators. Equivalent regulatory systems are available in all other sates including DC to cope with their respective auto insurance rates. Illinois insurance rules covering automobile insurance rates Illinois make it necessary that the recording of rates with the State of Department of Insurance shows the character and extent of the coverage in hand. To be valid, automobile insurance rates directives, generally speaking, necessitate that modification to the rates may not be generated without, firstly, being filed and approved.