915.1.1 Group I-1 and R occupancies.
BC § 915.1.1
Listed carbon monoxide alarms or detectors shall be installed as follows: 1. Group I-1, Group R-1, and Group R-2 where the main use or dominant occupancy of a building is classified as Group R-2 student apartments. Carbon monoxide detectors and audible notification appliances shall be installed in affected dwelling units in accordance with Section 915.1.1.1 and shall be annunciated by dwelling unit at a constantly attended location from which the fire alarm system is capable of being manually activated.
2.Groups R-2 (other than occupancies covered by Item 1) and R-3. Carbon monoxide alarms shall be installed in affected dwelling units in accordance with Section 915.1.1.1.













