OC Fire Hazard Severity Zone Map
California Government Code section 51178 requires the California Department of Forestry and Fire Protection (CAL FIRE) to identify and map “Fire Hazard Severity Zones” using consistent statewide criteria. On March 24, 2025, CAL FIRE released an updated version of the map from the director of CAL FIRE for an updated Fire Hazard Severity Zone (FHSZ) map in the unincorporated areas of the County of Orange. These maps use the latest climate data, fire history, topography, and wildfire modeling to classify areas as Very High, High, or Moderate Fire Hazard Zones. Orange County Public Works (OC Public Works), in partnership with the Orange County Fire Authority (OCFA), is currently reviewing the updated maps.
While local governments, including the County of Orange, do not determine the contents of the FHSZ maps, they are required by state law to make the updated maps available for public review and comment, and to adopt these designations within 120 days.
Public Review & Comment: OC Public Works has 30 days from the release date to share the draft map for public review and comment.
Comment Submittal:
OC Public Works / OC Development Services / Planning
Virginia Gomez
601 N. Ross Street, Santa Ana, CA 92701
714-667-1614
virginia.gomez@ocpw.ocgov.com
Ordinance Adoption: OC Public Works must adopt a finalized map and ordinance within 120 days of receiving the map.
Submission to Cal Fire: After adoption, OC Public Works has 30 days to submit the ordinance to CalFire.
OC Fire Hazard Severity Zone Map
Additional wildfire information is available at CAL FIRE and the Orange County Fire Authority.
Launch Cal Fire's Fire Hazard Severity Zone Viewer.
