Peoria, IL Fire Regulations: Propane Storage (2026)

Illinois regulates all LP-gas installations under the Liquefied Petroleum Gas Act (430 ILCS 35/) and OSFM rules at 41 Illinois Administrative Code Part 200, which incorporates NFPA 58 with state-specific amendments. For residential consumers, the key NFPA 58 Table 6.4.4.1 setbacks (as adopted in Illinois) apply: aggregate water capacity up to 125 gallons (typically a 100-gallon tank) may be located adjacent to a building with no minimum distance; 126-500 gallons (typically a 250- or 500-gallon tank used for whole-house propane heating) requires 10 feet from any building, property line, and source of ignition; 501-2,000 gallons requires 25 feet. Tanks must be on stable non-combustible bases, accessible to refueling trucks, protected from vehicle impact, and prominently labeled with 'No Smoking' and 'Flammable' placards. Above-ground tanks over 2,000 gallons water capacity require a vertical pressure-relief discharge piped at least 7 feet above the top of the tank under the Illinois state amendment. All propane installations must be performed by an Illinois-licensed LP-gas installer registered with the OSFM, and tanks over 4,000 gallons aggregate water capacity trigger an NFPA 58 Fire Safety Analysis filed with local fire response (Peoria Fire Department). Peoria's adoption of the 2018 IFC under Chapter 5, Article III imports IFC Chapter 61 (Liquefied Petroleum Gases), which cross-references NFPA 58. Recreational use of small DOT-cylinder propane tanks (20-lb grill bottles) is not regulated for setbacks; only one 100-lb cylinder may be stored inside a residential structure under NFPA 58 7.2.2.2.