DC limits propane cylinder storage on residential properties under the DC Fire Code, generally allowing two 20-pound grill cylinders outdoors and prohibiting indoor storage of LPG except for very small permitted appliances.
DC Fire Code, adopted via DCMR Title 12-C and based on IFC Chapter 61, restricts LPG storage in residential zones. Homeowners may keep up to two 20-pound cylinders outdoors at ground level, away from doorways, ignition sources, and basement access. Storage on rooftop decks of multi-unit buildings is barred unless approved by a licensed fire-protection engineer. Bulk tanks, mobile home tanks, and tank trucks require DC Fire Marshal permits. Indoor cylinder storage in apartments is prohibited under the Fire Code. Inspections occur on complaint or after fire incidents.
Excess cylinders or indoor LPG: 250 to 1,000 dollars per cylinder; rooftop violations on multi-family buildings escalate; permit-required tanks without approval face removal and fines.
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