What is the process for revising a Flood Insurance Rate Map (FIRM)?

A FEMA flood map, or FIRM, is revised through a multi-year process that includes distribution of preliminary mapping and a 90-day public appeal and comment period before adoption and effective date. 

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1. What is FEMA flood risk mapping?
2. Why is FEMA revising their flood risk maps for Santa Rosa?
3. How often are flood maps updated?
4. What geographic area is under review for the Santa Rosa FEMA Flood Risk Mapping Project?
5. What is the process for revising a Flood Insurance Rate Map (FIRM)?
6. What is the Special Flood Hazard Area (SFHA)?
7. What local data is Santa Rosa providing to FEMA for the Flood Risk Mapping Project?