Geological Hazard Abatement District (GHAD): A GHAD is an independent, state-level public agency that oversees geologic hazard prevention, mitigation, abatement, and control. GHADs operate with a focus on the prevention of geologic hazards, with mitigation and abatement also being primary functions. A “geologic hazard” is broadly defined as an actual or threatened landslide, land subsidence, soil erosion, earthquake, fault movement, or any other natural or unnatural movement of land or earth. (California Association of GHADs)