909 of the IBC is on Smoke Control. We have been using CO detectors here in CT for a while now, and there is no reason to have distinctive different alarms. We allow and even encourage these two similiar device to be interconnected. ( compatibility?, use the same manufacturer) The object is to get the folks up and out of the building. Someone can then call the fire department, and they can investigate why the alarms went off: Was it a fire or was it CO gas accumulation? (They have gas detectors on their trucks).
