What it does
IH 99 18 adds an exclusion for water damage caused by flood, surface water, waves (including tsunami), tides, overflow of any body of water and spray, whether or not wind-driven (including storm surge), and waterborne material moved by such water, whether natural or caused by failure of a dam, levee or seawall. Resulting fire, explosion or theft remains covered, and the exclusion does not apply to property in transit.
Who needs it
Carriers use it for equipment yards, storage sites and jobsites in flood zones. Open-perils IH forms otherwise cover flood unless excluded.
Quoting and selling notes
Ask where equipment and stock are kept overnight and in the off-season. Contractors working near rivers or coasts may need flood coverage bought back or the exclusion removed; a separate flood sublimit is a common compromise.