Floodplains Outline

The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP).洪水保险费率图（Flood Insurance Rate Map，FIRM）是国家洪水保险计划（National Flood Insurance Program，NFIP）开展洪泛区管理、灾害减缓以及保险相关活动的基础依据。