M-10 - Public Protection Classification Report - ISO Rating

There is one additional factor considered in calculating the final score – Divergence. Even the best fire department will be less than fully effective if it has an inadequate water supply. Similarly, even a superior water supply will be less than fully effective if the fire department lacks the equipment or personnel to use the water. The FSRS score is subject to modification by a divergence factor, which recognizes disparity between the effectiveness of the fire department and the water supply. The Divergence factor mathematically reduces the score based upon the relative difference between the fire department and water supply scores. The factor is introduced in the final equation. PPC Grade The PPC grade assigned to the community will depend on the community's score on a 100-point scale: PPC Points 1 90.00 or more 2 80.00 to 89.99 3 70.00 to 79.99 4 60.00 to 69.99 5 50.00 to 59.99 6 40.00 to 49.99 7 30.00 to 39.99 8 20.00 to 29.99 9 10.00 to 19.99 10 0.00 to 9.99 The classification numbers are interpreted as follows:  Class 1 through (and including) Class 8 represents a fire suppression system that includes an FSRS creditable dispatch center, fire department, and water supply.  Class 8B is a special classification that recognizes a superior level of fire protection in otherwise Class 9 areas. It is designed to represent a fire protection delivery system that is superior except for a lack of a water supply system capable of the minimum FSRS fire flow criteria of 250 gpm for 2 hours.  Class 9 is a fire suppression system that includes a creditable dispatch center, fire department but no FSRS creditable water supply.  Class 10 does not meet minimum FSRS criteria for recognition, including areas that are beyond five road miles of a recognized fire station. PPC is a registered trademark of Insurance Services Office, Inc. Page 3