Modesto, CA Fire Regulations: Propane Storage (2026)

Stanislaus County has not enacted a separate propane ordinance; liquefied petroleum gas (LP-gas) storage is regulated through the 2022 California Fire Code adopted in County Code Chapter 16.55 and enforced by the Stanislaus County Fire Prevention Division. California Fire Code Chapter 61 governs LP-gas. Section 6109 limits LP-gas quantities, providing that the aggregate quantity of LP-gas stored shall not exceed 200 pounds except as otherwise allowed; the maximum quantity in one storage location in buildings not open to the public, such as industrial buildings, shall not exceed a water capacity of 735 pounds (nominal 300 pounds of LP-gas). For safety, LP-gas containers shall not be stored in a basement, pit or similar location where heavier-than-air gas could collect, and containers not connected for use shall not be stored on roofs. Cylinders must be used and stored per the manufacturer's instructions and kept away from ignition sources. Larger stationary tanks (typical of rural homes and farms in the unincorporated county) are subject to separation distances from buildings and property lines under Chapter 61 and NFPA 58 and require fire-authority review. Homeowners installing or relocating a propane tank should confirm requirements with the County Fire Prevention Division and obtain any needed permits.