Westminster, CA Fire Regulations: Propane Storage (2026)

Westminster does not maintain a separate propane ordinance; storage and use of liquefied petroleum gas (LP-gas) are governed by California Fire Code Chapter 61, adopted through Municipal Code Chapter 15.22 (Fire Code) and enforced for the city by the Orange County Fire Authority. For ordinary single-family residential use, the fire code allows propane cylinders within set quantity limits—commonly cited as not exceeding 20 pounds of LP-gas aggregate for typical residential storage outside, with larger residential limits (up to about 200 pounds) addressed under specific code provisions. Cylinders must be stored outdoors, upright, and protected from physical damage, with DOT cylinder valves protected by screw-on caps or collars whether the cylinder is full, partially full, or empty. Storing LP-gas cylinders inside a home or in a way that blocks exits is not permitted. In multifamily buildings, the fire code is stricter: storing or using LP-gas cylinders larger than the small barbecue size on combustible balconies and within certain distances of dwelling units is generally prohibited. Quantities above residential thresholds, or commercial LP-gas installations, can require an OCFA operational permit and must meet container, separation, and clearance standards. Westminster's flat, urban character means most propane issues involve backyard grills and patio heaters rather than bulk tanks.