Safety & Legal
State-by-state restriction overview
This is a factual reference page, not legal advice. The status labels are intentionally conservative, and every summary points back to a source link.
Federal law does not treat most commercial flamethrowers as firearms, but state and local rules still matter. California regulates long-range nonstationary flamethrowers, Maryland source material treats them as destructive devices, and manufacturers also flag certain local ordinances such as Warren, Michigan.
Green states have no statewide flamethrower statute. That never overrides local fire codes or burn rules, so verify municipal restrictions before purchase, transport, or use.
FAQ
Frequently asked questions
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Are flamethrowers legal in the US?
In most states, yes. Flamethrowers are federally unregulated tools. They are not considered firearms by the ATF, meaning no NFA tax stamps, background checks, or FFL dealers are required. However, California and Maryland are the clearest statewide restriction cases, and local rules can still matter in other places.
Is this page legal advice?
No. It is a practical starting point with source links, not a substitute for checking the rules that apply where you live.
Legal and safety sources
- Exothermic legality FAQ Used for the general July 2026 review baseline.
- California Health & Safety Code 12750
- Exothermic California explainer
- Maryland State Fire Marshal bulletin
- Maryland Criminal Law 4-501 reference
- Warren, MI fire pit/open burning note Local ordinance example, not statewide law.