TL;DR - Key Takeaways
- • NFPA 10 is the national standard for portable fire extinguishers — selection, installation, inspection, maintenance, and testing
- • Published by the National Fire Protection Association and enforced by local fire marshals, OSHA, and insurance carriers
- • Current edition: 2022 (adopted by most states; some still under 2018)
- • Different from NFPA 25 (sprinkler systems), NFPA 72 (fire alarms), and NFPA 80 (fire doors)
What is NFPA 10? The Fire Extinguisher Standard Explained
NFPA 10 is a widely used standard for portable fire extinguishers. If you own a building, manage a facility, or work as a fire protection contractor, use this general research-based summary as a starting point—not as a statement of what your jurisdiction requires.
What NFPA 10 covers
NFPA 10 — officially titled "Standard for Portable Fire Extinguishers" — covers five core areas:
- Selection (§5): Which type of extinguisher is appropriate for which fire hazard. Class A for ordinary combustibles, Class B for flammable liquids, Class C for electrical fires, Class D for combustible metals, Class K for cooking oils.
- Installation and Placement (§6): Where extinguishers must be located — travel distances, mounting heights, visibility requirements, and cabinet specifications.
- Inspection (§7): Monthly visual inspections, annual maintenance inspections, and 6-year internal examinations — who performs each, what gets checked, and how results are documented.
- Hydrostatic Testing (§8): Pressure testing intervals — 5 years for CO2 and wet chemical, 12 years for dry chemical and clean agent. Testing must be performed at DOT-certified facilities.
- Maintenance and Recharging (§7): When and how extinguishers must be recharged, repaired, or removed from service.
Who created NFPA 10 and why
The National Fire Protection Association (NFPA) publishes NFPA 10 as part of its consensus standards development process. The standard is written by a technical committee of fire protection engineers, manufacturers, insurance representatives, enforcing authorities, and labor representatives. It is revised every 3–5 years through a public comment and review process.
The current edition is NFPA 10 (2022). Most US states have adopted the 2022 edition, though some jurisdictions still enforce the 2018 or 2016 editions. When the standard is updated, the new edition is typically adopted by states within 1–2 years through their fire code adoption cycles.
Who enforces NFPA 10
Local Fire Marshals and AHJs
The Authority Having Jurisdiction (AHJ) — often a local fire marshal or fire prevention bureau — may reference NFPA 10 during inspections. What an AHJ checks, accepts, or enforces depends on the adopted code, edition, site, and local process. Confirm the current position with the relevant official source.
OSHA
OSHA's portable-extinguisher rules apply to covered workplaces, but the relationship between federal rules, NFPA publications, adopted codes, and site facts is not one-size-fits-all. Read the current OSHA source and obtain qualified advice for the workplace. See our OSHA fire extinguisher requirements guide for general background.
Insurance Carriers
Insurers may include fire-protection conditions in a policy, but coverage decisions depend on the policy, facts, jurisdiction, and claim process. Do not infer that a missing record automatically changes coverage. Ask the carrier or broker what documentation it requires.
How NFPA 10 differs from other NFPA standards
| Standard | What It Covers | Who Needs It |
|---|---|---|
| NFPA 10 | Portable fire extinguishers | Every commercial building, fire protection contractors |
| NFPA 25 | Water-based fire protection systems (sprinklers, standpipes, fire pumps) | Buildings with sprinkler systems, sprinkler contractors |
| NFPA 72 | Fire alarm and signaling systems | Every commercial building, fire alarm contractors |
| NFPA 80 | Fire doors and other opening protectives | Buildings with fire-rated doors |
| NFPA 96 | Commercial kitchen ventilation and fire suppression | Restaurants, commercial kitchens |
If your building has fire extinguishers (NFPA 10), a sprinkler system (NFPA 25), and a fire alarm (NFPA 72), you're subject to three separate inspection schedules, performed by three potentially different contractors, with three different sets of documentation requirements.
Key NFPA 10 requirements at a glance
- Monthly visual inspection: Every 30 days. Performed by the building owner or staff. Check location, gauge, seal, and physical condition. See our monthly vs annual inspection guide.
- Annual maintenance: Every 12 months. Performed by a certified fire extinguisher technician. Full hands-on inspection with new maintenance tag.
- 6-year internal examination: At the 6-year mark from manufacture for stored-pressure dry chemical extinguishers.
- Hydrostatic testing: Every 5 years (CO2, wet chemical) or 12 years (dry chemical, clean agent). At a certified testing facility.
- Placement: Mounted 4 inches to 5 feet from floor. Along normal paths of travel. Near exits. Unobstructed. See our location and placement guide.
How FireInspected helps you comply with NFPA 10
FireInspected currently offers a research-based, NFPA 10-oriented documentation workflow for extinguisher records where configured. It does not claim to cover every check, determine the applicable interval, track deadlines automatically, or produce a report accepted by an AHJ, insurer, or OSHA. Review the adopted edition, official sources, manufacturer instructions, and qualified professional advice before relying on a record.
Explore our complete NFPA 10 guide hub for detailed breakdowns of every requirement.
More NFPA 10 guides
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FireInspected organizes service documentation; it does not replace adopted requirements, manufacturer instructions, qualified service work, or AHJ direction.