Which of the following is not required in existing assembly occupancies if an approved automatic sprinkler system is installed throughout the building?

In assembly occupancies, the installation of an approved automatic sprinkler system provides a significant level of fire protection. When such a system is in place, certain requirements for fire safety measures may be modified or waived based on the protection provided by the sprinkler system.

A manual initiation device, such as a pull station for activating the fire alarm, is not uniformly required when an automatic sprinkler system is installed. The rationale is that the sprinkler system alone can manage a fire effectively, reducing the immediate need for occupants to manually signal an alarm. In certain situations, such as when the sprinkler system activates, alarms may automatically sound, prompting an evacuation without requiring manual initiation.

Conversely, emergency lighting, fire alarms, and exit signage remain vital components of fire safety in assembly occupancies regardless of the sprinkler system installation. Emergency lighting ensures safe egress in case of power failure, fire alarms are essential for immediate notification of occupants, and exit signage guides people to exits. Therefore, while the sprinkler system enhances safety, it does not eliminate the necessity for these other life safety measures.