Sonoma County, CA Fire Regulations: Propane Storage (2026)
Key Facts
- Governing code
- CA Fire Code Ch. 61 (adopted via County Ch. 13)
- LP-gas permit
- Required before container is filled
- Construction docs
- Single tank over 2,000 gal water capacity
- Aggregate threshold
- Over 4,000 gal aggregate
- Install standard
- NFPA 58 / CA Mechanical Code
- SPCC plan
- Petroleum facilities 1,320 gal or more
Summary
Propane (LP-gas) and petroleum storage in unincorporated Sonoma County is regulated through the California Fire Code adopted in County Code Chapter 13 and Permit Sonoma's hazardous-materials program. LP-gas installations require a Fire Code permit before filling, and aboveground petroleum facilities of 1,320 gallons or more must maintain a federal SPCC plan under the Aboveground Petroleum Storage Act.
(111) California Fire Code, Section 6104.2 is amended to read: 6104.2 Maximum Capacity Within Established Limits. Within the limits established by law restricting the storage of liquefied petroleum gas for the protection of heavily populated or congested areas, the aggregate capacity of any one installation shall not exceed a water capacity of 2,000 gallons in any area as established by applicable land-use and zoning standards. Exception: (No change) (112) California Fire Code, Section 6107.5 is added to read: 6107.5 Seismic Anchoring. An approved seismic anchoring system shall be installed on all permanently installed, propane/LPG gas containers.
Full Breakdown
Sonoma County regulates fuel storage through two channels. First, the California Fire Code - adopted with local amendments in Chapter 13 of the Sonoma County Code - governs liquefied petroleum gas (LP-gas/propane). Under California Fire Code Chapter 61, a permit is required for LP-gas installations, and a distributor may not fill an LP-gas container for which a permit is required unless an installation permit has been issued for that location by the fire code official. Where a single LP-gas container exceeds 2,000 gallons water capacity, or aggregate capacity exceeds 4,000 gallons, the installer must submit construction documents, and LP-gas equipment must be installed in accordance with the California Mechanical Code and NFPA 58.
Second, Permit Sonoma's Fire Prevention and Hazardous Materials Division administers the aboveground petroleum storage program. Owners and operators of aboveground petroleum storage tanks must obtain permit approval prior to installation, may need to file a Hazardous Materials Business Plan, and 'must develop and maintain' a Spill Prevention, Control, and Countermeasure (SPCC) plan if the facility has 'aboveground storage capacity of 1,320 gallons or greater' under the Aboveground Petroleum Storage Act (APSA) of 1990, following 40 CFR Part 112.
For typical residential propane tanks, the practical requirement is correct installation, fire-code clearances, and a permit through the fire code official; larger commercial or agricultural installations trigger the construction-document and hazardous-materials-plan thresholds described above.
Violations & Fines
Installing or filling a regulated LP-gas container without the required Fire Code permit, or operating an aboveground petroleum facility of 1,320 gallons or more without an SPCC plan, violates the adopted California Fire Code and APSA. Contact Permit Sonoma Hazardous Materials at (707) 565-2024 before installation.
Frequently Asked Questions
Do I need a permit for a propane tank in unincorporated Sonoma County?
When do petroleum storage tanks need a spill prevention plan?
Sources & Official References
Other rules in Sonoma County
California rules heatmap·Compare Sonoma County to another location·View the California fire regulations overview
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