Government Code 51178
The State Fire Marshal shall identify areas in the state as
moderate, high, and very high fire hazard severity zones based on
consistent statewide criteria and based on the severity of fire
hazard that is expected to prevail in those areas. Moderate,
high, and very high fire hazard severity zones shall be based on
fuel loading, slope, fire weather, and other relevant factors
including areas where winds have been identified by the Office of
the State Fire Marshal as a major cause of wildfire
spread.
