Washington adopts the International Fire Code statewide under RCW 19.27.031, including NFPA 58 standards for liquefied petroleum gas (propane). These rules govern container placement, capacity, and installation regardless of city.
Under RCW 19.27.031 and WAC 51-54A, Washington adopts the International Fire Code (IFC) Chapter 61 and incorporates NFPA 58 (Liquefied Petroleum Gas Code). These rules set minimum distances from buildings, property lines, and ignition sources based on tank capacity, with permits required for tanks above specified thresholds. Residential aboveground tanks of 125 gallons or less are typically exempt from permits but must follow placement rules. The State Fire Marshal under RCW 19.27.110 has enforcement authority. Local jurisdictions cannot weaken these standards.
Improper installation or storage may result in stop-use orders, civil penalties under the building and fire codes, and required removal or relocation of tanks.
See how Kennewick's propane storage rules stack up against other locations.
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