The number of acres in the top two fire zones that must comply with stiffer, fire-safe building codes increased 76% in Southern California areas protected by local firefighters, new state hazard maps released Monday,

Two months after deadly wildfires razed thousands of homes in the Los Angeles area, Cal Fire has released a new map showing fire hazard severity zones for the entire state. The maps were developed using science-based and field-tested models that assign a hazard score based on factors like fire likelihood and fire behavior,

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.