Substantial Improvement and Substantial Damage

Learn how other communities are tracking and regulating Substantial Improvement and Damage to decrease flood losses and encourage resilience.

Our Substantial Improvement and Damage Guide outlines challenges and approaches to regulating SI/SD for more resilient development. Included in the guide are case studies from communities in Louisiana, Illinois, Mississippi, and New Jersey that delve into best practices for adopting stricter regulations, keeping track of construction, educating residents on requirements, and more.

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