No Adverse Impact as outlined by the Association of State Floodplain Managers (ASFPM) provides a new and effective coastal management philosophy, and also identifies its legal underpinnings. No Adverse Impact (NAI) floodplain management is essentially a “do-no harm” policy based on the concept that everyone benefits when the actions of every community or property owner does not adversely affect others
— CNAI, Association of State Floodplain Managers (ASFPM)
The No-Adverse-Impact provides methods to integrate development with coastal ecosystems, providing the “No-Adverse-Impact” protocol is followed.