Prior to 1986, which map was not used with the FIS?

The correct choice is that the New Format FIRM was not used with the Flood Insurance Study (FIS) prior to 1986. The New Format Flood Insurance Rate Map (FIRM) was introduced later, as part of the modernization and enhancement of FEMA’s mapping products.

Before 1986, the mapping designations and formats had not yet transitioned to the new style that would become standard. The Base Flood Elevation Map and the Floodway Map were both established tools that were part of the floodplain management efforts before 1986. They provided critical information regarding flood risk assessment and management practices.

The old format FIRM, along with the Flood Boundary and Floodway Map (FBFM), was indeed in use prior to this time frame. Hence, the New Format FIRM, representing updates and improvements to the mapping process, would not have been relevant or utilized before 1986.