ISO’s PPC database reaches 9 million hydrants

As part of ISO’s Public Protection Classification (PPC®) program, we locate, identify, and track the fire hydrants in the United States. Water supply is one of the major components of a PPC grade, and the hydrant data we provide is of vital importance to firefighters, residents, and insurers. This past February we reached a milestone— more than 9 million hydrants in the United States. See the attached infographic for more information.

Verisk data capture 9 million fire hydrants

ISO Fire Suppression Rating Schedule

Our Fire Suppression Rating Schedule (FSRS) is free to chiefs and other fire officials. It's a manual containing the criteria Verisk uses in reviewing the fire prevention and fire suppression capabilities of individual communities or fire protection areas. To recieve a copy of the FSRS, contact our National Processing Center at 1-800-444-4554 and select Option 2.

H2O and Verisk

Water supply and distribution systems are important factors in determining a community’s ISO Public Protection Classification (PPC®). We provide complimentary educational training and seminars to water providers and associations throughout the country. Contact Hugh Gibson, national water resources manager, at for more information.

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