If your claim is governed by federal ERISA regulations, then your state’s insurance laws are “pre-empted,” which means your state’s Department of Insurance has no jurisdiction. Many insurance companies do include stock language in their denial letters advising the denied claimant that he or she can file a complaint with his or her state’s Department of Insurance. This is in fact true. However, doing so is generally a waste of time. You will simply receive a response a few months later from the Department of Insurance saying that they lack jurisdiction in the matter. You will be no better off and your appeal deadline will be that much closer, if not already expired.