Concerns carbon monoxide detectors in multiple dwellings and certain hotels.

S 287 requires hotels and multi-unit residential buildings (like apartment complexes) to install carbon monoxide detectors meeting safety standards in every dwelling unit, unless no hazard exists. If a building already has a monitored fire alarm system (which alerts emergency services during a fire), it must also add a monitored carbon monoxide alarm system that alerts both locally and notifies emergency services during a carbon monoxide emergency. The bill defines "monitored" systems as those that trigger both local alerts and direct emergency response notifications. This law applies to all affected properties and takes effect six months after enactment, aiming to enhance occupant safety through faster emergency response.