From the FRB examination manual:
Standard Flood Hazard Determination Form
When an institution makes, increases, extends, or
renews any loan secured by improved real estate
or by a mobile home, it must use the standard flood
hazard determination form (SFHDF) developed by
FEMA6 to determine whether the building or mobile
home offered as security property is or will be
located in an SFHA in which flood insurance is
available under the federal flood insurance stat-
utes.
FDIC:
Standard Flood Hazard Determination Form
When an institution makes, increases, extends, or renews any loan secured by improved real estate or by a mobile home, it must use the standard flood hazard determination form (SFHDF) developed by FEMA to determine whether the building or mobile home offered as security property is or will be located in an SFHA in which flood insurance is available under the Federal flood insurance statutes.