California officials on Monday released the fourth and final set of local maps that rate the likelihood and expected severity of wildfires.The "Fire Hazard Severity Zones in Local Responsibility Area" maps are the result of an executive order by Gov.

Cal Fire said the maps are proactive, to be used in wildland-urban interface building standards for new construction and natural hazard real estate disclosures at the time of sale.

Cal Fire's new maps for Southern California added 3.5 million acres into fire-hazard zones, increasing the acreage in the highest hazard zone by 26%.