HOW ISO WORKS AND OUR COMMMUNITY RATING
How the FSRS works
The FSRS lists a large number of items (facilities and practices) a community should have to fight fires effectively. The Schedule assigns credit points for each item. Using those credit points and various formulas, ISO calculates a total score on a scale of 0 to 100.
To receive certain PPC ratings, a community must meet minimum criteria. After a community meets those criteria, the PPC rating depends on the community's score on the 100-point scale. The FSRS considers three main areas of a community's fire-protection program:
Ten percent of a community's overall score is based on how well the fire department receives and dispatches fire alarms. Our field representatives evaluate:
Fifty percent of the overall score is based on the fire department. ISO reviews the distribution of fire companies throughout the area and checks that the fire department tests its pumps regularly and inventories each engine company's nozzles, hoses, breathing apparatus, and other equipment. ISO also reviews the fire-company records to determine things such as:
Forty percent of the overall score is based on the community's water supply. This part of the survey focuses on whether the community has sufficient water supply for fire suppression beyond daily maximum consumption. ISO surveys all components of the water-supply system, including pumps, storage, and filtration. We observe fire-flow tests at representative locations in the community to determine the rate of flow the water mains provide. We also review the condition and maintenance of fire hydrants. Last, we count the distribution of fire hydrants. In Spencer County ISO reviewed the departments rural water supply operation by using tanker truck to move water to rural fire scenes.