Fire Hazard Severity Zones


CAL FIRE Fire Hazard Severity Zone Map Update

CAL FIRE’s office of the State Fire Marshal is hard at work updating the Fire Hazard Severity Zones for rural, unincorporated areas all across our expansive state. The map of these zones identifies the likelihood an area will experience wildfire events.

CAL FIRE’s fire scientists and wildfire mitigation experts developed the map using a science-based and field-tested model that assigns a hazard score based on factors that influence fire likelihood and fire behavior. The zones fall into three categories: moderate, high, and very high.

The evolving draft map and more relevant information is available here. The public comment period closed on August 9, 2023. At this time, CAL FIRE Office of the State Fire Marshal is reviewing all comments received during the public comment period. For further information regarding the adoption process, please visit the OSFM FHSZ Maps page.

Inquiries can be sent to CAL FIRE through email at or by U.S. mail at:

Office of the State Fire Marshal C/O FHSZ
California Department of Forestry and Fire Protection
P.O. Box 944246
Sacramento, CA 94244-2460.

If you have questions for the Ventura County Fire Department about these changes, contact us at or call (805) 504-6858.

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