Imperial County, CA Fire Regulations: Brush Clearance (2026)

Brush clearance in Imperial County is shaped by its geography: the Sonoran Desert and irrigated agriculture leave very little flammable wildland vegetation. CAL FIRE's 2022 Fire Hazard Severity Zone mapping shows the county's State Responsibility Area contains only about 1,780 acres rated Moderate and zero acres rated High or Very High, so the strict 100-foot defensible space rule has almost no application here. California Public Resources Code Section 4291 requires owners of buildings in the State Responsibility Area, on mountainous, forest-, brush- or grass-covered land, to maintain 100 feet of defensible space (with an ember-resistant zone within 5 feet and more intense fuel reduction between 5 and 30 feet), but that statute only reaches the small SRA footprint, not the irrigated valley or most townships. For the rest of the unincorporated county, fire-hazard vegetation is handled as weed abatement. The Imperial County Fire Department's Fire Prevention Bureau responds to fire-hazard complaints with a formal process: a property survey, a Notice of Code Violation, a 30-day compliance period sent by certified mail, then a 15-day period if needed, followed by referral to Planning & Development and Legal Counsel, with fees and citations if the hazard is not cleared. Overgrown dry weeds and accumulated rubbish are treated as a public nuisance abatable under the County's nuisance ordinance.