Sierra County, CA Fire Regulations: Propane Storage (2026)

Propane (liquefied petroleum gas) storage in unincorporated Sierra County is governed by codes the county has adopted by reference. Sierra County Code Section 12.04.080(I) expressly adopts National Fire Protection Association (NFPA) Standard Chapter 58 covering liquefied petroleum gas tanks and installation, and Section 12.04.080(G) adopts the California Fire Code, which also regulates LPG. Under NFPA 58, separation distances scale with tank size: above-ground containers in the 125-to-500-gallon range (common residential tanks, including 250- and 500-gallon tanks) must be placed at least 10 feet from any building and at least 10 feet from the property line. Smaller tanks (under 125 gallons aggregate) may be placed closer, while larger tanks require greater setbacks. Tanks must be set on a stable, non-combustible base, kept clear of weeds and combustible material (which also supports defensible space), and protected from vehicle impact where needed. Installation, relocation, and connection of propane systems typically require a permit and inspection through the Sierra County Building Department under the adopted California Mechanical and Fire Codes. Local fire authorities (CAL FIRE / county fire) act as the authority having jurisdiction and can require additional clearances. Property owners should confirm the exact setback for their tank size with the propane supplier and the county before installation.