In the United States each state typically has a statute creating an administrative agency. These state agencies are typically called the Department of Insurance, or some similar name, and the head official is the Insurance Commissioner, or a similar titled officer. The agency then creates a group of administrative regulations to govern insurance companies that are domiciled in, or do business in the state. In the United States regulation of insurance companies is almost exclusively conducted by the several states and their insurance departments. The federal government has explicitly exempted insurance from federal regulation in most cases.