A rating method under which the rate depends upon a set of characteristics that define a class. for example, a Fire resistant building with an approved roof used as a small office building in a community with excellent Fire, wear and Policy facilities. In India, Motor and fire tariff are the best examples of class rating method where all the risks are classified into particular categories or classes and rates accordingly. Motor Tariff: All Honda City vehicles in Mumbai will be assigned a single rate. Fire Tariff: All cement manufacturing units will be rated as a single unit.