Montana Statewide Rule

Montana Propane Storage and LP-Gas Code Requirements

Heavy RestrictionsApplies statewide across Montana (2026)

Montana adopts NFPA 58 Liquefied Petroleum Gas Code statewide through the State Fire Prevention and Investigation Section. Storage setbacks, tank sizing, installation, and licensing of LP-gas dealers are regulated uniformly, with the State Fire Marshal enforcing compliance across all jurisdictions.

Key Facts

Adopted code: NFPA 58
Regulating authority: State Fire Marshal
Dealer licensing: Required statewide
Governing chapter: MCA Title 50 Ch 74
Setback distances: Tank size dependent

Source: Montana Legislature

Full Breakdown

Under MCA Title 50, Chapter 74, the Montana State Fire Marshal regulates the storage, handling, transportation, and dispensing of liquefied petroleum gas. The state adopts NFPA 58 by reference, setting minimum distances between propane tanks and buildings, property lines, and ignition sources. Dealers, installers, and transporters must hold a state-issued license. Container sizes 125 gallons and larger must comply with specific setback tables. The Fire Marshal inspects facilities and may enforce penalties. While local fire codes may impose additional requirements, they cannot relax NFPA 58 standards adopted by Montana.

Violations & Penalties

Operating without a license, improper installation, or noncompliance with setbacks may result in license suspension, civil penalties, and orders to remove or relocate noncompliant tanks.

Frequently Asked Questions

How far must a propane tank be from my house in Montana?

Setbacks depend on tank capacity per NFPA 58. A 500-gallon tank generally requires 10 feet from buildings and property lines; smaller tanks have reduced distances under Montana's adopted code.

Can I install my own propane tank in Montana?

No. MCA Title 50, Chapter 74 requires installations be performed by a state-licensed LP-gas installer. Unlicensed installation may result in penalties and insurance issues.

Sources

MCA Title 50 Chapter 74 Liquefied Petroleum Gas

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