Are plug-in detectors permitted in new construction according to the given guidelines?

Plug-in detectors are not permitted in new construction due to safety regulations and the need for a consistent power supply that hardwired detectors provide. Hardwired smoke and carbon monoxide detectors ensure that they are interconnected and that they function properly even during power outages, as they typically have battery backups. The reliance on plug-in types could lead to potential issues, such as them being unplugged or failing to activate during an emergency, which undermines the safety measures intended by building codes. Therefore, for new construction, guidelines typically mandate that detectors must be hardwired to maintain a high standard of safety and reliability.