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Mendocino County, CA Fire Regulations: Outdoor Burning (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Outdoor burning rules in Mendocino County, CA, also called the burn ban, open burning, or fire restriction ordinance, set when you can burn yard waste, debris, or run a recreational fire.

Key Facts

Governing chapter
Mendocino County Code Ch. 9.33
First offense penalty
up to $100 civil fine
Repeat offense penalty
up to $500 per violation
Enforcing authority
County Counsel / APCD
Adopted
Ordinance No. 3746, 1990
Non-burn days set by
CARB or county APCD

Summary

Mendocino County bans nearly all outdoor fires under Chapter 9.33 of the county code, except for newspaper used to start a fire, charcoal or firewood burned for cooking or recreation, and vegetative-matter burning already regulated under Air Pollution Control District Regulation 2. Open burning is also barred outright on any state- or district-declared non-burn day.

These county ordinances apply to unincorporated areas of Mendocino County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(A)No person shall ignite or cause to be ignited or suffer, allow or maintain any outdoor fire in Mendocino County, which fires burn any material except:(1)Vegetative matter. Agricultural and rural nonagricultural burning of vegetative matter is regulated by Regulation 2 of the North Coast Air Basin, and this Chapter is not an abridgement of that regulation;(2)Newspaper as necessary to start fires permitted by this Chapter;(3)Fuels, as defined in Section 9.33.040(D), when burned for the purpose of preparing food or for recreation.(B)No person shall ignite or cause to be ignited or suffer, or allow or maintain any outdoor fire on a day designated as a non-burn day by the California Air Resources Board or by the Mendocino County Air Pollution Control District, except as described in subsection A of this section.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 75).

Full Breakdown

040(D) as charcoal, firewood, charcoal starter fluid, and untreated, unpainted sawn lumber burned for cooking or recreation. 040(D) includes anything burned in a 55-gallon drum or similar container, so backyard burn barrels for household trash or paper are not exempt. Subsection (B) adds a separate rule: no outdoor fire of any kind, even one that would otherwise be allowed, may be lit on a day the California Air Resources Board or the Mendocino County Air Pollution Control District designates a non-burn day. 060 carves out narrow exemptions for fires set by a public officer to prevent an imminent fire hazard, to train firefighters, to set backfires under Public Resources Code Section 4426, to abate a fire hazard under Health and Safety Code Section 13055, for pest or disease control with no reasonable alternative, or for agricultural burning under Regulation 2.

The Board of Supervisors adopted the chapter in 1990 under Ordinance No. 3746, citing the county's basin topography and frequent temperature inversions that trap smoke and ash containing heavy metals and dioxins.

Violations & Fines

Violating Chapter 9.33 is an infraction under Section 1.04.110 of the county code, provable by the enforcing officer's visual observation of the fire or its aftermath. County Counsel may also seek civil penalties under Section 9.33.070: up to $100 for a first violation and up to $500 for each additional violation within one year, plus recovery of the county's hourly enforcement costs as set by Board resolution.

Frequently Asked Questions

Can I burn yard waste in a burn barrel at my Mendocino County home?
No. Section 9.33.040(D) defines an outdoor fire to include anything burned in a 55-gallon drum or similar container, and Section 9.33.050 only exempts newspaper used to start a fire, charcoal or firewood burned for cooking or recreation, and vegetative matter handled under separate air district rules. Burning household trash, paper, or yard debris in a barrel is prohibited.
What is a non-burn day and does it affect campfires?
A non-burn day is designated by the California Air Resources Board or the Mendocino County Air Pollution Control District, and Section 9.33.050(B) bars every outdoor fire on that day, including fires that would otherwise be allowed for cooking or recreation. Check the district's daily burn status before lighting any outdoor fire.
What happens if I'm caught violating the outdoor burning ordinance?
A violation is an infraction under Section 1.04.110, and County Counsel can additionally seek a civil penalty of up to $100 for a first violation and up to $500 for each further violation within a year under Section 9.33.070, plus the county's cost of enforcing the chapter.

Sources & Official References

Other rules in Mendocino County

All Mendocino County rules

How Mendocino County compares: Cities with the Strictest Outdoor Burning Rules·California rules heatmap·Compare Mendocino County to another location·View the California fire regulations overview

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