In March 2025, the California Office of the State Fire Marshal (OSFM) released its 2025 Recommended Local Responsibility Area Fire Hazard Severity Zone maps for the state of California, including Irvine.
The 2025 Local Responsibility Area Fire Hazard Severity Maps are 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.
Under California law, through Assembly Bill 211 and Senate Bill 63, the City of Irvine must adopt the map by ordinance and ensure public accessibility within 30 days of receiving them. Additionally, California Government Code Section 51179 (b)(3) specifies that the City cannot lower the hazard level designated by the OSFM but has the option to increase hazard levels or expand designated areas based on local conditions and knowledge.
To comply with California Government Code Section 51179, the City of Irvine must adopt these maps by ordinance within 120 days of their release.
Fire Hazard Severity Zone Maps
2025 Fire Hazard Severity Zone PDF Map
2025 Fire Hazard Severity Zone Interactive Map
2011 and 2025 Fire Hazard Severity Zone Interactive Comparison Map
Public Input
Working together for a safer Irvine: The City has made the State Fire Marshal's Fire Hazard Severity Zone maps available for public review and comment, as required by California Government Code 51178.5. We invite all community members to explore these maps and contribute their local knowledge through the public comment portal. Your feedback is a vital part of ensuring these classifications are accurate for our community.
More Information
CAL FIRE's Fire Hazard Severity Zone Website
For additional about the Fire Hazard Severity Zone maps or the adoption process, please contact cd@cityofirvine.org.