NFPA 1: Fire Code - Out of Service Systems
13.1.9 When a required fire alarm system is out of service for more than (8) hours, or a sprinkler system is out of service for more than (10) hours in a 24-hour period, the AHJ shall be permitted to require the building to be evacuated or an approved fire watch to be provided for all portions left unprotected by the fire protection system shutdown until the fire protection system has
been returned to service.
13.1.10 The AHJ shall be notified when any fire protection system is out of service and on restoration of service.
13.1.11 In the event of a failure of a fire protection system or an excessive number of accidental activations, the AHJ shall be permitted to require an approved fire watch until the system is repaired.
13.7.1.5.3 The AHJ shall be authorized to require standby fire personnel or an approved fire watch in accordance with 1.7.16 at premises in which required fire alarm systems are impaired or classified as chronic nuisance alarm prone systems.
13.7.1.5.4 Fire alarm systems that have produced five or more nuisance alarms in a 365-day period shall be classified as chronic
nuisance alarm prone systems.
1.7.17 - Standby & Fire Watch Personnel
1.7.17.1 The AHJ shall have the authority to require standby fire personnel or an approved fire watch when potentially hazardous conditions or a reduction in a life safety feature exist due to the type of performance, display, exhibit, occupancy, contest or activity, an impairment to a fire protection feature, or the number of persons present.
1.7.17.2 The owner, agent, or lessee shall employ one or more qualified persons, as required, and or approved, to be on duty.
1.7.17.2.1 The cost of standby fire personnel shall be at no cost to the AHJ.
1.7.17.3: Such standby fire personnel or fire watch personnel shall be subject to the AHJ's orders at all times and shall be identifiable and remain on duty during the times such places are open to the public, when such activity is being conducted, or as required by the AHJ.