The purpose of an ISO public protection survey is to gather information to determine a Public Protection Classification (PPC™), which insurers use for underwriting and to calculate premiums for fire insurance. The Fire Suppression Rating Schedule (FSRS) recognizes fire-protection features only as they relate to suppression of fires in structures.
In many communities, fire suppression may be only a small part of the fire department's overall responsibility. ISO recognizes the dynamic and comprehensive duties of a community’s fire service. We understand the complex decisions a community must make in planning and delivering emergency services. However, we evaluate only features related to reducing property losses from fire.