Provides a measure of the risk to new dense Interface development (<1 house/2 acres) of wildfire penetration, based on its proximate Fire Hazard Severity Zone (FHSZ) class. In contrast to Intermix areas, Interface lands have more manicured, irrigated and highly modified vegetation, and it is often the structural fuels can contribute significantly to fire spread. Wildfires in this form of WUI fires are relatively rare, and typically only spread under very extreme fire weather conditions. But due the high density of assets such as homes, roads, and residential and commercial infrastructure, damage levels from burning can be very high even over small areas.