Subsection 903.4.2 of the International Fire Code is hereby amended to read as follows:

903.4.2 Alarms. One all-weather horn/strobe shall be connected to every automatic sprinkler system on the exterior of the building above the Fire Department connection or in an approved location. Such sprinkler system water-flow alarm devices shall be activated by water flow equivalent to the flow of a single sprinkler of the smallest orifice size installed in the system. Where a fire alarm system is installed, actuation of the automatic sprinkler system shall actuate the building fire alarm system. Interior alarm notification appliances shall be installed as required by Section 903.4.2.1.

903.4.2.1 Waterflow alarm notification. Where an automatic fire sprinkler system is installed in a building; and a fire alarm system is not otherwise required by this code, an occupant notification system shall be provided in accordance with 907.5.

Exceptions:

1. Visible notification devices can be eliminated in normally unoccupied portions of buildings where permitted by the fire code official.

2. The requirements of this section do not apply to Group R-3 occupancies.