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Solano County, CA Landscaping Rules: Weed Ordinances (2026)

Few Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified June 2026

Key Facts

Dedicated Weed Chapter
None - uses Chapter 10 nuisance
Nuisance Authority
Solano County Code Ch. 10 (Secs. 10-10+)
Correction Period
Not less than 15 calendar days
Fire Standard
PRC 4291 - 100 ft defensible space
Noxious Weeds
Ag Commissioner / Weed Mgmt Area
Enforcement
Resource Management + fire districts

Summary

Unincorporated Solano County does not have a separate numbered weed-abatement chapter; overgrown, dead, or hazardous vegetation is abated as a public nuisance under Solano County Code Chapter 10. In the State Responsibility Area, California Public Resources Code Section 4291 requires 100 feet of defensible space, and local fire districts inspect for hazardous vegetation. The Agricultural Commissioner separately controls noxious and invasive weeds.

City-specific rules exist: Fairfield, Vallejo, and Vacaville have their own weed ordinances rules that differ from Solano County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

An enforcement officer or hearing officer may order any person who causes, permits or maintains or threatens to cause, permit or maintain a nuisance, to abate the nuisance.

View official code

Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 1868, passed April 9, 2026).

Full Breakdown

Solano County handles weed and vegetation hazards through several overlapping authorities rather than one dedicated 'weed abatement' ordinance. The Solano County Code Chapter 10 (Abatement of Public Nuisances) is the general tool: any condition that is a nuisance under California Civil Code Sections 3479-3480, or any County Code violation, is a public nuisance that the Department of Resource Management can order abated. The process (Sections 10-13 through 10-28) provides for a notice of violation, a correction period of not less than 15 calendar days for conditions that are not an immediate danger, administrative penalties, a hearing before a hearing officer, and county abatement with costs recorded as a special assessment lien.

For wildfire fuel specifically, the controlling rule on unincorporated parcels in the State Responsibility Area is the state defensible-space mandate, California Public Resources Code Section 4291 (100 feet of clearance around structures), enforced by CAL FIRE and the local fire protection districts. Separately, the Solano County Agricultural Commissioner and the Solano Weed Management Area coordinate prevention and control of noxious and invasive weeds (an agricultural/ecological program), distinct from residential fire-hazard abatement. Owners should treat the practical 'clear your dry grass and brush' duty as a fire-law obligation, backstopped by Chapter 10 nuisance enforcement.

Violations & Fines

Hazardous vegetation that is a nuisance is abated under Chapter 10: notice of violation, at least a 15-day cure period, escalating administrative penalties, and, if ignored, abatement by the county with costs imposed as a lien on the property. Failure to maintain PRC 4291 defensible space in the State Responsibility Area can result in CAL FIRE or fire-district citation and forced abatement at the owner's expense.

Frequently Asked Questions

Does Solano County have a weed abatement ordinance?
Not as a standalone numbered chapter. Overgrown and dead vegetation is abated as a public nuisance under Solano County Code Chapter 10. For wildfire fuel, state Public Resources Code Section 4291 requires 100 feet of defensible space, enforced by CAL FIRE and the local fire district.
How much time do I get to clear hazardous weeds after a county notice?
Under Chapter 10, the correction period for a nuisance that is not an immediate danger is not less than 15 calendar days. If you do not comply, the county can abate the condition and charge the cost to you as a lien on the property.

Sources & Official References

Other rules in Solano County

All Solano County rules

How Solano County compares: Cities with the Strictest Weed and Property Maintenance Rules·California rules heatmap·Compare Solano County to another location·View the California landscaping rules overview

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