3.5. NFPA 2010, Standard for Fixed Aerosol Fire-Extinguishing Systems.

Exception: Fire suppression systems for lead-acid and nickel-cadmium battery systems at facilities under the exclusive control of communications utilities that operate at less than 50 VAC and 60 VDC shall be provided where required by NFPA 76.

(e) Location

California Fire Code Section 1207.11.3 is hereby amended to read:

1207.11.3 Location. ESS shall be installed only in the following locations:

1. Detached garages and detached accessory structures.

2. Attached garages separated from the dwelling unit living space and sleeping units in
accordance with Section R302.6.

3. Outdoors or on the exterior side of the exterior walls not less than 3 feet (914 mm)
from doors and windows directly entering the dwelling unit and not below or above
any emergency escape and rescue openings.

4. Enclosed utility closets, basements, storage or utility spaces within dwelling units
with finished or noncombustible walls and ceilings. Walls and ceilings of unfinished
wood-framed construction shall be provided with not less than 5/8-inch (15.9 mm)
Type X gypsum wallboard.

5. ESS shall not be installed in sleeping rooms, closets, spaces opening directly into
sleeping rooms or in habitable spaces of dwelling units.

(f) Fire detection.

California Fire Code Section 1207.11.6 is hereby added to read:

1207.11.6 Fire detection. ESS installed in Group R-3 and R-4 occupancies shall comply
with the following:

1. Rooms and areas within dwellings units, sleeping units, basements and attached
garages in which ESS are installed shall be protected by smoke alarms in accordance
with Section 907.2.11.

2. A listed heat alarm interconnected to the smoke alarms shall be installed in locations
within dwelling units, sleeping units and attached garages where smoke alarms cannot
be installed based on their listing.

Exceptions:
1. A listed heat detector may be used in place of a heat alarm, so long as it
is interconnected with devices that provide an audible alarm at all sleeping
areas.
2. A fire sprinkler associated with an approved automatic sprinkler system that
triggers an audible alarm upon activation of the waterflow switch, may be
used in place of a heat alarm.

(Ord. 3201-22 § 1; Ord. 3247-25, 10/21/2025)