More than 800,000 acres of land across these SoCal counties have been classified under the highest fire hazard severity zone level.

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.

More than 3.5 million additional acres across Southern California, including Los Angeles County, have been designated as fire hazard zones under updated maps released on Monday by the California Department of Forestry and Fire Protection (Cal Fire).