NFPA 25: Inspection, Testing & Maintenance of Water-Based Fire Protection Systems 2026 – Official Edition

NFPA 25: Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems 2026 – Official Edition

The NFPA 25 Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems 2026 is the essential reference for keeping sprinkler systems, standpipes, fire pumps, and other water-based fire protection systems in peak operating condition. A fire protection system that hasn’t been properly maintained is a system you can’t count on when it matters most.

Updated for 2026, this edition delivers the most current ITM requirements to help contractors, facility managers, and inspectors ensure water-based systems are always ready to perform.

What's Inside

• Complete 2026 ITM requirements for sprinkler systems, standpipes, and fire pumps
• Updated inspection frequencies, testing procedures, and maintenance intervals
• Revised requirements for obstruction investigation and impairment management
• Guidance on private fire service mains and water storage tanks
• New and revised rules reflecting the latest advances in fire protection technology

Who Needs This Standard?

• Fire sprinkler inspection and service contractors
• Facility managers and building owners responsible for fire protection systems
• Fire marshals and authority having jurisdiction (AHJ) officials
• Insurance risk managers assessing fire protection system compliance
• Fire protection engineers and designers
• Property managers for commercial, industrial, and institutional buildings

A sprinkler system that hasn’t been inspected or tested to NFPA 25 standards is a liability waiting to happen. This standard gives you the complete framework to keep every water-based fire protection system compliant, reliable, and ready to save lives and property.

Published by the National Fire Protection Association (NFPA) — the global leader in fire, electrical, and life safety standards since 1896.