In March 2025, the California Office of the State Fire Marshal (OSFM) released its 2025 Recommended Local Responsibility Area Fire Hazard Severity Zone map for the state of California, including Irvine.
The 2025 Local Responsibility Area Fire Hazard Severity Map is developed by Cal Fire using the latest climate data, fire history, topography, and wildfire modeling to classify areas as Moderate, High, or Very High fire hazard zones.