5 rules for unincorporated Trinity County, California.
Verified from official government sources
Trinity County zoning Chapter 17.30B allows home occupations and cottage industry as accessory to a residence. It splits them into "minor" home occupations (low impact, broadly allowed) and "major" home occupations, which are limited to UNC, RR, A, and AF districts on parcels over one acre.
Trinity County limits home-business signs by tier: a minor home occupation may have one "residential nameplate sign," and a major home occupation may have one "appurtenant sign," with definitions set by the County's sign standards in Chapter 17.30B.
Trinity County's Environmental Health Division is the local enforcement agency for California's Cottage Food law. A home kitchen making approved foods must register (Class A) or be permitted (Class B) through the County. The County's zoning code does not separately restrict cottage food operations.
Trinity County treats state-licensed small and large family day care homes as a minor home occupation and follows California's zoning preemption. Under state law (SB 234), family child care homes are a residential use by right, so the County cannot require a special zoning permit beyond what applies to any residence.
Whether a Trinity County home occupation needs a permit depends on its tier and impacts. Many minor home occupations need no permit, but those on smaller parcels or with traffic/employee impacts require a Planning Director's or Planning Commission use permit; major home occupations generally require a use permit.
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