903.2.8 Group R.
BC § 903.2.8
An automatic sprinkler system shall be installed in Group R fire areas. An automatic sprinkler system shall be installed throughout buildings with a main use or dominant occupancy of Group R. Exception: An automatic sprinkler system shall not be required in detached one- and two-family dwellings and multiple single-family dwellings (town houses), provided that such structures are not more than three stories above grade plane in height and have separate means of egress.













