staff report memo · M-10
M-10 - Public Protection Classification Report - ISO Rating
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Text from the PDF text layer; check the PDF for anything that matters.Data Collection and Analysis
ISO has evaluated and classified over 39,000 fire protection areas across the United States
using its FSRS. A combination of meetings between trained ISO field representatives and the
dispatch center coordinator, community fire official, and water superintendent is used in
conjunction with a comprehensive questionnaire to collect the data necessary to determine the
PPC grade. In order for a community to obtain a grade better than a Class 9, three elements
of fire suppression features are reviewed. These three elements are Emergency
Communications, Fire Department, and Water Supply.
A review of the Emergency Communications accounts for 10% of the total classification. This
section is weighted at 10 points, as follows:
Emergency Reporting 3 points
Telecommunicators 4 points
Dispatch Circuits 3 points
A review of the Fire Department accounts for 50% of the total classification. ISO focuses on
a fire department's first alarm response and initial attack to minimize potential loss. The fire
department section is weighted at 50 points, as follows:
Engine Companies 6 points
Reserve Pumpers 0.5 points
Pump Capacity 3 points
Ladder/Service Companies 4 points
Reserve Ladder/Service Trucks 0.5 points
Deployment Analysis 10 points
Company Personnel 15 points
Training 9 points
Operational considerations 2 points
Community Risk Reduction 5.5 points (in addition to the 50 points above)
A review of the Water Supply system accounts for 40% of the total classification. ISO reviews
the water supply a community uses to determine the adequacy for fire suppression purposes.
The water supply system is weighted at 40 points, as follows:
Credit for Supply System 30 points
Hydrant Size, Type & Installation 3 points
Inspection & Flow Testing of Hydrants 7 points
PPC is a registered trademark of Insurance Services Office, Inc.
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Sources
- sharepoint (M-10 - Public Protection Classification Report - ISO Rating.pdf) — where it was found ↗ first seen Oct 12, 2026
Data last updated October 15, 2026. Built from the archive's documents; see how the data is built.