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Reference · Testing & Inspection

Acceptance Test

The 100 percent functional test of every device and function witnessed by the AHJ before a new or modified system is placed in service.

NFPA 72: 14.4.1, Chapter 7

Section numbers vary by edition — confirm in the edition your AHJ has adopted.

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Acceptance Testing vs Commissioning: What's the Difference?They sound interchangeable, but they answer different questions. One asks 'does this system work?' — the other asks 'does the whole design work together?'

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