Fire Regulations in Boston, MA

If you live in Boston or are thinking about moving there, fire regulations are one of those things you probably won't think about until they affect you directly. Boston has 6 specific rules on the books covering different aspects of fire regulations, and some of them might surprise you.

Fire Pits & Backyard Fires

A recreational open-air fire in a Boston backyard, a fire pit, chiminea, or torch, needs a Fire Commissioner permit capped at 4 square feet. The fee is $50 per month citywide, dropping to $15 per month if the permit is limited to a single estate.

Key details: Legal basis: Chapter 355 of the Acts of 1943. Issuing authority: Fire Commissioner. Size cap: 4 square feet. Standard fee: $50 per monthly permit period. Single-estate fee: $15 per monthly period.

This fee division doesn't attach its own dollar fine. A backyard fire run without a Fire Commissioner permit, or one that exceeds the 4-square-foot cap or the single-estate condition written into the permit, is outside the authorization Chapter 355 of the Acts of 1943 requires: putting the homeowner in the position of maintaining an unpermitted open-air fire rather than facing a scheduled penalty printed in this fee table.

Propane Storage

Storing propane at a Boston property needs a Building Code permit priced at $20 plus $5 per 100 pounds stored. A cheaper, separate permit covers propane kept in a building under active construction or renovation, at $5 plus $2.50 per heating appliance.

Key details: LP-gas supply install fee: $20 + $5 per 100 lbs stored. Construction/renovation storage fee: $5 + $2.50 per heating appliance. LP-gas equipment install/connect fee: $150 per installation (M.G.L. c.148 § 10A). Gasfitting install/alter/repair fee: $20 + $5 per appliance. Authority for supply/gasfitting: 780 CMR § 105.

The fee ordinance sets no separate penalty of its own; storing or supplying propane without the required permit means the installation was never authorized under Section 105 of the state Building Code, leaving the Building Commissioner and Inspectional Services free to withhold occupancy or utility sign-off until the correct permit is obtained and its fee paid.

Outdoor Burning

Open burning is banned year-round in Boston. The city is one of approximately 40 MA municipalities where the statewide seasonal open burning period does not apply.

Key details: Open Burning: Banned year-round. State Law: MGL c. 48 Section 13. Fine: Up to $500 + suppression. Gas Grills: Allowed with clearances.

Up to $500 fine plus cost of fire suppression, or up to 1 month imprisonment, or both under MGL c. 48 Section 13. BFD can order immediate extinguishment.

This is not one of those rules that cities tend to ignore. Boston actively enforces its outdoor burning requirements.

Brush Clearance

Boston may require vegetation management for fire safety. MA does not have a statewide defensible space mandate. Local property maintenance applies.

The rules around brush clearance in Boston lean permissive, but that does not mean anything goes.

Smoke Detectors

Boston Code § 21-6 puts an affirmative, standalone duty on every building owner: install fire and/or smoke detectors on the premises as defined by M.G.L. c. 148, § 26C, regardless of what any other city ordinance says.

Key details: Governing section: Boston Code § 21-6. Enacted: Ord. 1979 c. 36 § 1. Who must comply: Legal owner or agent of a building. Standard incorporated: M.G.L. c. 148 § 26C premises definition. Overrides: Any conflicting existing ordinance.

Section 21-6 itself does not print a standalone dollar fine or schedule; it functions as the local codification of the installation duty, with enforcement carried out through the Boston Fire Department's inspection authority and the penalty framework of the state statute, M.G.L. c. 148, § 26C, that the section incorporates by reference for scope and compliance.

Fireworks

All consumer fireworks are illegal in Massachusetts including sparklers. Boston enforces this strict statewide ban with confiscation and fines under MGL Chapter 148 Section 39.

Key details: Consumer Fireworks: All illegal. Sparklers: Also illegal. State Law: MGL c. 148 Section 39. Sale Penalty: $100-$1,000 + jail.

Possession or use: $10-$100 fine. Sale: $100-$1,000 fine and up to 1 year imprisonment. Police must seize all fireworks found. Criminal charges possible.

This is one of the stricter rules in Boston's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

The Bottom Line

Boston is tougher than many cities when it comes to fire regulations. Out of the 6 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in Boston, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

Keep in mind that Boston can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.