Portable fire extinguishers are a critical first line of defense against small fires when used by trained personnel. For the best protection, be sure to select, use, and maintain extinguishers using the latest requirements in the most up-to-date edition of NFPA 10, Standard for Portable Fire Extinguishers. You can depend on this important standard for comprehensive rules for the distribution, placement, operation, and inspection of portable fire extinguishers, as well as rules for testing and recharging.
The 2026 edition features several significant updates, including:
New definition of foam to capture all chemical-based forms, replacing aqueous film-forming foam (AFFF), film-forming fluoroprotein foam (FFFP), and synthetic fluorine-free foam (SFFF)
Expanded Chapter 5 Annex A material to clarify what types of equipment should and should not be considered delicate electronic equipment
Added Chapter 7 requirements to allow for a performance-based inspection program that can extend or reduce the frequency of fire extinguisher inspections
New condemned extinguisher requirements in Chapter 8 that clarify the proper disposal procedures of non-specific cylinders not addressed in Department of Transportation (DoT) or Transport Canda (TC) regulations
Table of Contents
Chapter 1 Administration
1.1 Scope. 1.2 Purpose. 1.3 Units.
Chapter 2 Referenced Publications
2.1 General. 2.2 NFPA Publications. 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections.
Chapter 3 Definitions
3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. 3.4 Fire Extinguisher Definitions.
Chapter 4 General Requirements
4.1 Listing and Labeling. 4.2 Identification of Contents. 4.3 Instruction Manual. 4.4 Obsolete Fire Extinguishers.
Chapter 5 Selection of Portable Fire Extinguishers
5.1 General Requirements. 5.2 Classifications of Fires. 5.3 Extinguisher Classification System. 5.4 Classification of Hazards. 5.5 Selection of Fire Extinguishers.
Chapter 6 Installation
6.1 General. 6.2 Installations for Class A Hazards. 6.3 Installations for Class B Hazards. 6.4 Installations for Class C Hazards. 6.5 Installations for Class D Hazards. 6.6 Installations for Class K Hazards. 6.7 Solid-Fuel Cooking Appliances.
Chapter 7 Inspection, Maintenance, and Recharging
7.1 General. 7.2 Inspection. 7.3 Extinguisher Maintenance. 7.4 Carbon Dioxide Hose Assembly Conductivity Test. 7.5 Hose Station Maintenance. 7.6 Electronic Monitoring System Maintenance. 7.7 Maintenance of Wheeled Extinguisher Hoses and Regulators. 7.8 Extinguisher Recharging and Extinguishing Agents. 7.9 Pressure Gauges. 7.10 Cabinets. 7.11 Maintenance of Signage. 7.12 Prohibition on Uses of Extinguishers and Conversion of Fire Extinguisher Types. 7.13 Maintenance and Recharge Service Collar. 7.14 Weight Scales.
Chapter 8 Hydrostatic Testing
8.1 General. 8.2 Test Equipment. 8.3 Frequency. 8.4 Extinguisher Examination. 8.5 Testing Procedures. 8.6 Test Pressures. 8.7 Recording of Hydrostatic Tests. 8.8 Condemning Extinguishers.
Annex A Explanatory Material Annex B Recommended Markings to Indicate Extinguisher Suitability According to Class of Fire Annex C Fire Extinguisher Selection Annex D Operation and Use Annex E Distribution Annex F Selection of Residential Fire-Extinguishing Equipment Annex G Extinguisher Classification and Rating System Annex H Conditions of Selection Annex I Maintenance Procedures Annex J Typical Specification of Equipment Capable of Producing Dry Air Annex K Informational References
Portable fire extinguishers are a critical first line of defense against small fires when used by trained personnel. For the best protection, be sure to select, use, and maintain extinguishers using the latest requirements in the most up-to-date edition of NFPA 10, Standard for Portable Fire Extinguishers. You can depend on this important standard for comprehensive rules for the distribution, placement, operation, and inspection of portable fire extinguishers, as well as rules for testing and recharging.
The 2026 edition features several significant updates, including:
New definition of foam to capture all chemical-based forms, replacing aqueous film-forming foam (AFFF), film-forming fluoroprotein foam (FFFP), and synthetic fluorine-free foam (SFFF)
Expanded Chapter 5 Annex A material to clarify what types of equipment should and should not be considered delicate electronic equipment
Added Chapter 7 requirements to allow for a performance-based inspection program that can extend or reduce the frequency of fire extinguisher inspections
New condemned extinguisher requirements in Chapter 8 that clarify the proper disposal procedures of non-specific cylinders not addressed in Department of Transportation (DoT) or Transport Canda (TC) regulations
Table of Contents
Chapter 1 Administration
1.1 Scope. 1.2 Purpose. 1.3 Units.
Chapter 2 Referenced Publications
2.1 General. 2.2 NFPA Publications. 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections.
Chapter 3 Definitions
3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. 3.4 Fire Extinguisher Definitions.
Chapter 4 General Requirements
4.1 Listing and Labeling. 4.2 Identification of Contents. 4.3 Instruction Manual. 4.4 Obsolete Fire Extinguishers.
Chapter 5 Selection of Portable Fire Extinguishers
5.1 General Requirements. 5.2 Classifications of Fires. 5.3 Extinguisher Classification System. 5.4 Classification of Hazards. 5.5 Selection of Fire Extinguishers.
Chapter 6 Installation
6.1 General. 6.2 Installations for Class A Hazards. 6.3 Installations for Class B Hazards. 6.4 Installations for Class C Hazards. 6.5 Installations for Class D Hazards. 6.6 Installations for Class K Hazards. 6.7 Solid-Fuel Cooking Appliances.
Chapter 7 Inspection, Maintenance, and Recharging
7.1 General. 7.2 Inspection. 7.3 Extinguisher Maintenance. 7.4 Carbon Dioxide Hose Assembly Conductivity Test. 7.5 Hose Station Maintenance. 7.6 Electronic Monitoring System Maintenance. 7.7 Maintenance of Wheeled Extinguisher Hoses and Regulators. 7.8 Extinguisher Recharging and Extinguishing Agents. 7.9 Pressure Gauges. 7.10 Cabinets. 7.11 Maintenance of Signage. 7.12 Prohibition on Uses of Extinguishers and Conversion of Fire Extinguisher Types. 7.13 Maintenance and Recharge Service Collar. 7.14 Weight Scales.
Chapter 8 Hydrostatic Testing
8.1 General. 8.2 Test Equipment. 8.3 Frequency. 8.4 Extinguisher Examination. 8.5 Testing Procedures. 8.6 Test Pressures. 8.7 Recording of Hydrostatic Tests. 8.8 Condemning Extinguishers.
Annex A Explanatory Material Annex B Recommended Markings to Indicate Extinguisher Suitability According to Class of Fire Annex C Fire Extinguisher Selection Annex D Operation and Use Annex E Distribution Annex F Selection of Residential Fire-Extinguishing Equipment Annex G Extinguisher Classification and Rating System Annex H Conditions of Selection Annex I Maintenance Procedures Annex J Typical Specification of Equipment Capable of Producing Dry Air Annex K Informational References