Final answer:
If a state requirement is more restrictive than the NFIP requirements, a community must follow both NFIP and state requirements.
Step-by-step explanation:
If a state requirement is more restrictive than the NFIP requirements, the community must follow both NFIP and state requirements. This is because the NFIP serves as a minimum standard for floodplain management, but states have the authority to enact more stringent regulations to address their unique needs and concerns. Compliance with both sets of rules ensures that the community meets the minimum national standards while also addressing any additional requirements imposed by the state.