Group R occupancies are required to have smoke alarms that are?

Group R occupancies, which include residential buildings such as apartments and dormitories, are required to have smoke alarms that enhance safety and comply with fire codes. The requirement for smoke alarms to be interconnected means that when one smoke alarm detects smoke, all the alarms in the building will sound, providing an immediate warning throughout the structure. This interconnected feature is crucial for alerting residents, especially in larger spaces where individuals may not hear a single alarm.

Additionally, smoke alarms can be battery-operated, which allows for flexibility in installation and ensures they remain functional even during power outages. This dual capability—being both battery-operated and interconnected—provides a comprehensive solution to enhance fire safety in residential occupancies.

Therefore, the correct answer encompasses both the need for battery-operated alarms and the requirement for interconnected systems, highlighting the importance of having smoke alarms that work in tandem to ensure everyone is alerted in the event of a fire, enhancing life safety in Group R occupancies.