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Benton County, WA Fire Regulations: Propane Storage (2026)

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

Key Facts

Governing section
BCC 3.16.025
Geographic limit source
IFC Section 6104.2 (2021 edition)
Permit authority
Benton County Fire Marshal's office
Zoning exemptions
None listed, unlike bulk-liquid storage rule
First-offense penalty
Civil penalty up to $500
Repeat violation
Charged as a misdemeanor
Applies to
Unincorporated Benton County only

Summary

Bulk liquefied petroleum gas storage is restricted countywide in unincorporated Benton County under BCC 3.16.025, which adopts the geographic limits of IFC Section 6104.2 without exempting any zoning district. Anyone wanting to install bulk LP-gas storage needs a special permit from the Benton County Fire Marshal, issued only where the storage poses no undue danger to people or property.

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

3.16.025 LIQUEFIED PETROLEUM GASES. The geographical limits referred to in Section 6104.2 of the 2021 edition of the International Fire Code, in which bulk storage of liquefied petroleum gas is restricted, are hereby established and shall apply to all areas in which the International Fire Code is in force; provided, however, that the Benton County Fire Marshal or designee may issue a special permit for such storage, where in the judgment of the Fire Marshal, there is no undue danger to persons or property and where such storage would not be in conflict with other Benton County codes, ordinances, or regulations.

Full Breakdown

2 of the 2021 International Fire Code, the section that defines where bulk storage of liquefied petroleum gas is restricted. 023, which exempts the LI, HI, RL-5, RL-20, GMAAD and U zoning districts by name, the LP-gas section carries no list of exempted districts: the restriction shall apply to all areas in which the International Fire Code is in force, meaning it reaches every unincorporated parcel in the county, residential and rural alike. 033. The Fire Marshal will issue one only on a finding that the storage creates no undue danger to persons or property and does not conflict with other county codes or ordinances.

Permit applications go through the Fire Marshal's office in the form the office requires, and the fee is set by resolution of the Board of County Commissioners rather than fixed in the code itself. Permits are non-transferable: a change in use, occupancy, operation or ownership triggers the need for a new permit, and existing permits must be renewed at the Fire Marshal's office on or before June 1 each year, with renewal billing sent out by May 1. This chapter applies only within unincorporated Benton County; the incorporated cities of Kennewick, Richland, West Richland and Prosser adopt and enforce their own fire codes for LP-gas storage inside city limits.

Violations & Fines

BCC 3.16.045 sets the penalty for any violation of Chapter 3.16, including unpermitted bulk LP-gas storage: a first offense draws a civil penalty of up to $500, plus court costs and restitution for any resulting damage. A second or subsequent violation of the same provision is charged as a misdemeanor. The county may also seek injunctive relief under BCC 3.16.050 to force compliance and can recover the cost of that action from the violator.

Frequently Asked Questions

Do I need a permit to store bulk propane on rural property near Prosser?
Yes. BCC 3.16.025 restricts bulk LP-gas storage everywhere the International Fire Code applies in unincorporated Benton County, with no exemption for rural or agricultural zoning. Before installing a bulk tank you need a special permit from the Benton County Fire Marshal's office, granted only when the Fire Marshal finds no undue danger to people or property and no conflict with other county rules.
How much does a Benton County LP-gas storage permit cost?
The code doesn't set a flat dollar fee. BCC 3.16.033 leaves the permit and annual renewal fee to be set by resolution of the Board of County Commissioners, and renewal is due at the Fire Marshal's office by June 1 each year, with billing sent by May 1. Contact the Fire Marshal's office for the current fee schedule.
What happens if I store bulk propane without a permit?
A first violation of BCC Chapter 3.16, including unpermitted LP-gas storage, carries a civil penalty of up to $500 plus court costs and restitution for damages under BCC 3.16.045. A second violation of the same provision becomes a misdemeanor, and the county can also sue for an injunction under BCC 3.16.050 to force compliance.
Does this rule apply inside Kennewick or Richland?
No. Benton County ordinances, including BCC 3.16.025, only reach the unincorporated area of the county. Kennewick, Richland, West Richland and Prosser are separate incorporated cities that adopt and enforce their own fire codes, so a propane storage question inside any of those cities goes to the city's fire marshal, not the county's.

Sources & Official References

Other rules in Benton County

All Benton County rules

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