Maximum Age for Apparatus

The Fire Suppression Rating Schedule (FSRS) does not specify any maximum age for fire apparatus. ISO uses NFPA standards to define whether or not the apparatus meets general requirements. In addition, pumper apparatus must pass a pump test. ISO will credit a pumper with its capability (gallons per minute) at a net pump pressure of 150 psi. Aerial apparatus must also pass an annual service test (including a nondestructive test at least every five years).

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. . . on any topic related to the PPCTM program or the Fire Suppression Rating Schedule, click Talk to ISO Mitigation, or call the ISO mitigation specialists at 1-800-444-4554.