According to basic rules, which of the following requires a permit in the special flood hazard area (SFHA)?

In special flood hazard areas (SFHAs), a permit is required for all types of development to ensure compliance with floodplain management regulations. This rule encompasses a wide range of activities including but not limited to residential and commercial construction, alterations, renovations, and improvements. The primary goal of requiring permits is to minimize flood risk, protect public safety, and promote responsible development practices in flood-prone areas.

The necessity for permits applies to all potential development activities, acknowledging that even seemingly minor modifications can have significant impacts on flood risk and management within these critical areas. This holistic approach helps communities manage flood risks effectively and comply with the requirements of the National Flood Insurance Program (NFIP).