Which situations may allow for special exceptions to be granted for a variance?

Special exceptions for a variance are typically considered when specific conditions apply that justify deviation from standard floodplain management regulations. In this context, historic buildings and functionally dependent uses represent situations where strict adherence to floodplain management regulations may not be feasible or appropriate.

Historic buildings often possess significant value in terms of culture, heritage, or architecture that communities seek to preserve. Regulations might be relaxed to allow for necessary alterations or improvements that ensure the building’s continued use while still considering flood risk. Functionally dependent uses, such as docks or marinas, are intrinsically linked to water bodies and cannot be effectively relocated; thus, providing exceptions acknowledges the unique functional requirements of these types of developments in flood-prone areas.

This approach strikes a balance between regulatory compliance and the preservation of important cultural assets and necessary land use, which is why option B is the correct choice. Other situations, such as new developments, may not qualify for variances as they often must adhere strictly to current regulations designed to mitigate flood risk.