Zone AE and A1-30

The purpose of this page is to define Zones AE and A1-30, commonly used terms in floodplain management. To explore other common floodplain management terms access the NFIP Policy Index.

Definition/Description

Areas subject to inundation by the 1-percent-annual-chance flood event determined by detailed methods. Base Flood Elevations (BFEs) are shown. Mandatory flood insurance purchase requirements and floodplain management standards apply.

NFIP Requirement

• 60.3 (c) - Zone AE and A1-30 Requirements
• 64.3 - Definition

Guidance

• Answers to Questions About the National Flood Insurance Program - Flood Hazard Assessments and Mapping Requirements
• IS-9 Managing Floodplain Development Through The National Flood Insurance Program (NFIP) (page 3-33)

Related Keywords

• Elevation
• Flood Insurance Rate Map (FIRM)
• Flood Map
• Flood Zones