Nfpa.72 |best|

| Device | Action | Frequency | | :--- | :--- | :--- | | | Visual check for LED/Trouble | Weekly | | Batteries | Load test & terminal torque | Semi-annually | | Smoke Detectors | Sensitivity test | 1 Year (or 2 years if listed) | | Duct Detectors | Airflow/Calibration test | 1 Year (or quarterly per mfg) | | Pull Stations | Physical activation | 1 Year | | Ground Faults | Meter check | Annually |

Don't rely on a 2019 understanding if your jurisdiction is enforcing the 2022 or 2025 edition. Purchase the current official NFPA 72 document from nfpa.org, or review your local fire code for the legally adopted version today. nfpa.72

This covers smoke detectors, heat detectors, carbon monoxide detectors (via Annex B), manual pull stations, and water flow switches. It includes siting requirements—for example, ceiling-mounted smoke detectors must be within 21 feet of any point in a corridor. | Device | Action | Frequency | |

Whether you are a building owner, facility manager, or a fire protection enthusiast, here is what you need to know about the current standards and how they keep us safe. What is NFPA 72? It includes siting requirements—for example