An insurance rating organization formed by the merger in July 2002 of the Property and Casualty Insurance Rating Organization of Japan (established 1948) and the Automobile Insurance Rating Organization of Japan (established 1964), which were established in accordance with the Act of Non-Life Insurance Rating Organizations. It collects data from member insurance companies and calculates the Reference Loss Cost Rates for automobile insurance, fire insurance, personal accident insurance, and nursing care expense insurance, as well as Standard Rates for compulsory automobile liability insurance and earthquake insurance. It also handles loss adjustment work for compulsory automobile liability, collects insurance data, and conducts research and analysis.