An early format is the Flood Hazard Boundary Map. These were especially common in rural communities.

All flood hazard areas were identified by approximately detailed study methods. FEMA converted many of these maps to official FIRMs by sending a notification letter to the community without conducting a more detailed study.

Printed Flood Hazard Boundary Map

The Flood Hazard Boundary Map is easy to recognize as it consists of one or more 11"x17" pages and a cover sheet that includes an Index and a legend.