Propane storage is governed by the statewide South Carolina Fire Code and Fuel Gas Code, not a distinct county rule. Small residential cylinders for grills are allowed; larger tanks must follow the adopted fire-code and NFPA 58 separation and installation standards.
Charleston County follows the statewide 2021 South Carolina Fire Code (2021 IFC) and 2021 South Carolina Fuel Gas Code, which incorporate NFPA 58 for liquefied petroleum gas. Homeowners may keep standard grill-size cylinders on residential property. Larger stationary LP tanks require clearance from buildings, property lines, and ignition sources, proper anchoring, and often a mechanical or fuel-gas permit for installation. Do not store LP cylinders in basements or fully enclosed interior spaces. Installation and inspection are handled under state building-code permits and the Office of State Fire Marshal; there is no separate Charleston County propane ordinance.
Improper LP-gas tank siting or installation is a fire-code and permit violation, correctable at inspection, with penalties for uncorrected hazards.
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