The Insurance Services Office (ISO) classifies communities from 1 (the best) to 10 (the worst) based on how well they score on the ISO Fire Suppression Rating Schedule. This grades features such as water distribution, fire department equipment, manpower, and fire alarm facilities.
The City of Orange is currently classified as an ISO Class 2.
Most U.S. insurers of home and business properties use the ISO’s PPC in calculating premiums. Generally, the price of insurance in a community with good PPC is lower than in a community with a poor PPC, assuming all other factors are equal.