14B-9-903 Automatic sprinkler systems.

The provisions of Section 903 of IBC are adopted by reference with the following modifications:

1.   Add a new Section 903.1.2 to read:

"903.1.2 Where prohibited.

Automatic sprinkler systems shall not be installed in hazardous chemical rooms or in hazardous chemical storage buildings, where the chemical has the ability to react with water to produce substances or violent chemical reactions which increase the hazard. When the presence of water will not add to the hazard, an automatic sprinkler system shall be required in such hazardous chemical room or building."

2.   Revise Section 903.2 by deleting "Approved."

3.   Delete the exception to Section 903.2.

4.   Delete items 3 and 4 in Section 903.2.1.1.

5.   Revise the numbered items in Section 903.2.1.2 to read:

"1.   The fire area exceeds 12,000 square feet (1115 m2).

2.   The fire area has an occupant load of 300 or more.

3.   The fire area has an occupant load of 100 or more and is located on a floor more than four feet (1219 mm) below the lowest level of exit discharge serving such occupancy."

6.   Delete item 3 in Section 903.2.1.3.

7.   Add a new item 4 in Section 903.2.1.3 to read:

"4.   The Group A-3 occupancy contains one or more exhibition areas exceeding 5,000 square feet (464 m 2 ) in aggregate."

8.   Delete item 3 in Section 903.2.1.4.

9.   Revise Section 903.2.1.6, including the exception, to read:

"903.2.1.6 Assembly occupancies on roofs.

Where an occupiable rooftop has an assembly occupancy with an occupant load of 300 or more, all floors between the occupiable rooftop and the level of exit discharge shall be equipped with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2."

10.   Revise Section 903.2.1.7 by replacing "shall be provided" with "shall be provided throughout the building."

11.   Revise Section 903.2.2 to read:

"903.2.2 Group B.

An automatic sprinkler system shall be provided for Group B occupancies as provided in this section.

903.2.2.1 Ambulatory care facilities.

An automatic sprinkler system shall be installed throughout the entire floor containing an ambulatory care facility where either of the following conditions exist at any time:

1.   Four or more care recipients are incapable of self-preservation.

2.   One or more care recipients that are incapable of self-preservation are located at other than the level of exit discharge serving such a facility.

In buildings where ambulatory care is provided on levels other than the level of exit discharge, an automatic sprinkler system shall be installed throughout the entire floor as well as all floors between the level of ambulatory care and the nearest level of exit discharge, the level of exit discharge, and all floors below the level of exit discharge.

903.2.2.2 Telephone exchanges.

An automatic fire-extinguishing system shall be installed throughout buildings containing telephone exchanges."

12.   Revise Section 903.2.3 to read:

"903.2.3 Group E.

An automatic sprinkler system shall be provided for Group E occupancies as follows:

1.   Throughout all Group E fire areas and all connected Group A fire areas in buildings where the aggregate area of all Group E and connected Group A fire areas is 7,200 square feet (669 m2) or greater.

2.   Throughout buildings containing Group E occupancies owned by, operated by or constructed with funding from a governmental unit.

3.   Throughout buildings containing Group E-2 occupancies.

Exception: Where every room or space in a Group E-2 occupancy normally subject to client occupancy, other than toilet rooms, has not less than one door leading directly to an exit or directly to the outside of the building."

13.   Revise the title and first sentence of Section 903.2.4 to read:

"903.2.4 Group F.

An automatic sprinkler system shall be provided throughout all buildings containing a Group F occupancy where one of the following conditions exists:"

13.1   Revise item 4 in Section 903.2.4 to read:

"4.   A Group F-1 fire area used for the manufacture of upholstered furniture or mattresses exceeds 2,500 square feet (232 m 2 )."

14.   Revise Section 903.2.4.1 by replacing "fire areas" with "buildings."

15.   Add a new Section 903.2.4.2 to read:

"903.2.4.2 Electric generation plants.

An automatic fire-extinguishing system shall be provided throughout any structure that is owned or operated by any person whose primary business is the generation or transmission of electrical power and that houses one or more electrical generators, electrical transformers, or switching equipment for a service area beyond the building in which the equipment is located."

16.   Revise exception 2 to Section 903.2.6 to read:

"2.   An automatic sprinkler system is not required where Group I-4 day care facilities are at the level of exit discharge and where every room where care is provided has not fewer than one exterior exit door."

17.   Delete exception 3 to Section 903.2.6.

17.1.   Revise item 4 in Section 903.2.7 to read:

"4.   A Group M occupancy where the area used for the display and sale of upholstered furniture or mattresses exceeds 5,000 square feet (464 m 2 )."

18.   Add a new item 5 to Section 903.2.7 to read:

"5.   A Group M fire area is located in a basement."

19.   Add new exceptions to Section 903.2.8 to read:

"Exceptions:

1.   Buildings of Group R-5 occupancy.

2.   Buildings of Group R-2 occupancy, other than congregate living facilities, with not more than four stories above grade plane and containing not more than ten dwelling units where each fire area contains not more than two dwelling units and all required vertical exits are interior exit stairways."

20.   Revise Section 903.2.8.1 to read:

"903.2.8.1 Group R-3 and R-5.

An automatic sprinkler system installed in accordance with Section 903.3.1.3 shall be permitted in Group R-3 and R-5 occupancies."

20.1.   Revise items 4 and 5 in Section 903.2.9 to read:

"4.   A Group S-1 fire area used for the storage of commercial motor vehicles where the fire area exceeds 5,000 square feet (464 m 2 ).

5.   A Group S-1 occupancy where the area used for the storage of upholstered furniture or mattresses exceeds 2,500 square feet (232 m 2 )."

20.2.   In Section 903.2.10.1, reset the following term in italic type: "commercial motor vehicle."

21.   Revise Section 903.2.10 to read:

"903.2.10 Group S-2 parking garages.

An automatic sprinkler system shall be provided throughout buildings containing parking garages in accordance with Section 406.6 where any of the following conditions exists:

1.   Where the floor area of the parking garage exceeds 12,000 square feet (1115 m2).

2.   Where the parking garage has a storage capacity of more than 20 vehicles and is located beneath other occupancies.

3.   Where the parking garage is in a basement."

22.   Revise the title of Section 903.2.10.1 to "Commercial-vehicle parking garages."

22.1.   In Section 903.2.10.1, reset the following term in italic type: "commercial motor vehicle."

22.2.   Revise Section 903.2.11 by replacing "903.2.11.6" with "903.2.11.8."

23.   Revise Section 903.2.11.1.2 by deleting "approved."

24.   Revise Section 903.2.11.1.3 by deleting "approved."

25.   Revise Section 903.2.11.3 to read:

"903.2.11.3 Buildings more than 70 feet in height.

An automatic sprinkler system shall be installed throughout buildings that are more than 70 feet (21.3 m) in building height.

Exception: Parking facilities, in accordance with Section 906.9."

26.   Renumber existing Section and Table 903.2.11.6 to 903.2.11.8 and delete the following rows in the table: covered and open mall buildings, Group H-5 HPM exhaust ducts, flammable finishes, drying rooms, children’s play structures, buildings containing laboratory suites, unlimited area buildings, smoke-protected assembly seating, and the last row.

27.   Add a new Section 903.2.11.6 to read:

"903.2.11.6 Shops and storerooms.

An automatic sprinkler system shall be installed in all rooms and spaces used as paint shops, wastepaper baling or storage, and other storage uses having a similar degree of combustibility.

Exceptions:

1.   Shops and storerooms located in a Group R-5 occupancy.

2.   Shops and storerooms not exceeding 1,000 square feet (93 m2) in a building not exceeding one story above grade plane."

28.   Add a new Section 903.2.11.7 to read:

"903.2.11.7 Telecommunications equipment areas.

Every fire area within an existing structure containing a telecommunication equipment area that exceeds 150 square feet (13.93 m2) must be equipped with an automatic fire-extinguishing system."

29.   Revise Section 903.2.12 by deleting "Chapter 33 of."

30.   Revise Section 903.3.1.1.1 to read:

"903.3.1.1.1 Exempt locations.

Automatic sprinklers shall not be required in the following rooms or areas where such rooms or areas are protected with an automatic fire detection system in accordance with Section 907.2 that will respond to visible or invisible particles of combustion. Sprinklers shall not be omitted from a room merely because it is damp, of fire-resistance-rated construction or contains electrical equipment.

1.   A room where the application of water, or flame and water, constitutes a serious life or fire hazard.

2.   A room or space where sprinklers are considered undesirable because of the nature of the contents, where approved by the fire code official.

3.   Generator, transformer and switchboard rooms separated from the remainder of the building by walls and floor/ceiling or roof/ceiling assemblies having a fire-resistance rating of not less than 2 hours.

4.   [Reserved.]

5.   Elevator machine rooms, elevator shafts and machinery spaces. (Automatic sprinklers shall be provided in elevator pits.)"

31.   Delete Section 903.3.1.1.2.

32.   Revise Section 903.3.1.2 to read:

"903.3.1.2 NFPA 13R sprinkler systems.

Automatic sprinkler systems installed in Group R-5; Group R-3; and Group R-4, Condition 1 shall be permitted to be installed throughout in accordance with NFPA 13D, provided the building shall not exceed 45 feet (13.7 m) in building height."

33.   Delete Section 903.3.1.2.1.

34.   Delete item 3 (and subitems) in Section 903.3.1.2.3.

35.   Revise Section 903.3.1.3 to read:

"903.3.1.3 NFPA 13D sprinkler systems.

Automatic sprinkler systems installed in Group R-5; Group R-3; Group R-4, Condition 1; and townhouses shall be permitted to be installed throughout in accordance with NFPA 13D, provided the building shall not exceed 45 feet (13.7 m) in building height."

36.   Revise the last sentence of Section 903.3.5 to read:

"For connections to the public waterworks systems, the water supply test used for design of fire protection systems shall be acceptable to the fire code official and not less than one year old."

37.   Revise Section 903.3.8.4 by deleting "approved."

37.1   Insert a new Section 903.3.9 to read:

"903.3.9 Concealed sprinkler heads.

Where concealed sprinkler heads are used, cover plates shall have a brass, chrome or other unpainted metallic finish."

38.   Revise exception 1 to Section 903.4 by replacing "one- and two-family dwellings" with "Group R-5 occupancies."

39.   Revise Section 903.4 by adding a sentence, following the exceptions, to read:

"All valves in supply pipes to automatic sprinkler systems shall be secured open."

40.   Revise Section 903.4.1, excluding the exceptions, to read:

"903.4.1 Monitoring.

Alarm, supervisory and trouble signals shall be distinctly different and shall be automatically transmitted to a supervising station."

41.   Revise Section 903.4.2 to read:

"903.4.2 Alarms.

An electric bell, located on the exterior of the building above a fire department connection, shall be connected to each automatic sprinkler system. The bell 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.

A sign shall be placed at a conspicuous location near the bell and shall state: "SPRINKLER ALARM-WHEN BELL RINGS CALL FIRE OR POLICE DEPARTMENT."

42.   Revise Section 903.4.3 by deleting "Approved."

(Amend Coun. J. 2-19-20, p. 14473, Art. II, § 29; Amend Coun. J. 10-7-20, p. 21791, Art. II, § 14; Amend Coun. J. 6-25-21, p. 32180, Art. II, § 13)

14B-9-904 Alternative automatic fire-extinguishing systems.

The provisions of Section 904 of IBC are adopted by reference with the following modifications:

1.   Revise Section 904.2 to read:

"904.2 Where permitted.

Automatic fire-extinguishing systems installed as an alternative to the required automatic sprinkler systems of Section 903 shall be approved by the fire code official. As a condition of approval, the fire code official may require signs indicating the type of alternative automatic fire-extinguishing system be installed in prominent locations at each building entrance."

2.   Revise Section 904.2.2 to read:

"904.2.2 Commercial hood and duct systems.

Each required commercial kitchen exhaust hood and duct system required by the Chicago Fire Prevention Code or Chicago Mechanical Code to have a Type I hood shall be protected with an automatic fire-extinguishing system installed in accordance with this code."

3.   Revise Section 904.11.1.4 by replacing "an approved" with "a."

4.   Revise the exception to Section 904.12 by deleting "Section 304.1 of."

5.   Revise Section 904.13 by deleting item 3.

6.   Revise Section 904.13.1.1 by deleting "approved."

(Amend Coun. J. 2-19-20, p. 14473, Art. II, § 30)

14B-9-905 Standpipe systems.

The provisions of Section 905 of IBC are adopted by reference with the following modifications:

1.   Add new Sections 905.2.1, 905.2.2, 905.2.3 and 905.2.4 to read:

"905.2.1 Water supply.

Where wet standpipes are installed in buildings that are 80 feet (24.4 m) or less in building height and the building is protected throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2, the water supply for the building may be designed to provide 100 pounds per square inch (689 kPa) pressure with 500 gallons per minute (31.6 L/s) flowing from the two hydraulically most remote outlets in the standpipe system. The standpipe system shall be designed for full standpipe flow in accordance with NFPA 14.

905.2.2 Multiple systems required.

In buildings where the floor level of the highest story is more than 275 feet (83.8 m) above grade plane, two or more separate standpipe systems shall be provided. The lowest standpipe system shall serve the portion up to and including the story which is 275 feet (83.8 m) or less above grade plane. Above 275 feet (83.8 m) additional standpipe systems shall be provided to serve zones of not more than 20 stories each.

905.2.3 Express risers.

In buildings where the floor level of the highest story is more than 275 feet (83.8 m) above grade plane, individual standpipe systems, as required by Section 905.2.1, shall be supplied by two or more separate risers from the zone fire pump located in the lowest story of the building, except that the number of express risers shall not exceed the number of risers serving that zone; or by individual fire pumps located on the lowest story of each zone taking suction under head from a tank automatically filled by two or more risers from the adjacent lower zone. Such a tank shall have a capacity sufficient to supply the largest pump in the zone at its rated capacity for at least 30 minutes but not less than 10,000 gallons (37,854 L).

905.2.4 Pressure reducing devices.

Where the pressure at nozzles is more than 65 pounds per square inch (448 kN/m2), the 1 1/2-inch hose valve shall be provided with a device or disk to limit the force of the hose stream to 90 pounds (0.4 kN) so that the nozzle can be safely handled by one person."

2.   Revise the exception to Section 905.3 to read:

"Exception: Standpipe systems are not required in Group R-2, R-3, R-4 and R-5 occupancies not more than four stories above grade plane."

3.   Revise Section 905.3.1 to read:

"905.3.1 Height.

Class III standpipe systems shall be installed throughout buildings which exceed 55 feet in building height or where four or more stories are above grade plane or two or more stories are basements.

Exceptions:

1.   Class I standpipes are allowed in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2.

2.   [Reserved.]

3.   [Reserved.]

4.   Class I manual dry standpipes are allowed in parking garages and parking facilities that are subject to freezing temperatures, provided that the hose connections are located as required for Class II standpipes in accordance with Section 905.5."

4.   Revise exception 2 to Section 905.3.2 by deleting "automatic dry and semiautomatic dry standpipes or."

5.   Delete Section 905.3.3.

6.   Revise Section 905.3.4.1 by deleting "approved."

7.   Revise Section 905.3.6 to read:

"905.3.6 Helistops and heliports.

Buildings with a rooftop helistop or heliport shall be equipped with a Class I or III standpipe system extended to the roof level on which the helistop or heliport is located."

8.   Revise Section 905.3.7 by deleting "Chapter 36 of."

9.   Revise Section 905.3.8 to read:

"905.3.8 Rooftop gardens, landscaped roofs, and occupiable rooftops.

Buildings or structures that have vegetative roofs, rooftop gardens, landscaped roofs or occupiable rooftops and that are equipped with a standpipe system shall have the standpipe system extended to the roof level on which the vegetative roof, rooftop garden, landscaped roof or occupiable rooftop is located."

10.   Revise Section 905.4 to read:

"905.4 Location of Class I standpipe hose connections.

Class I standpipe hose connections shall be provided in all of the following locations:

1.   In every required interior exit stairway, a hose connection shall be provided for each story above and below grade plane. Hose connections shall be located at the floor landing.

2.   [Reserved.]

3.   In every exit passageway, at the entrance from the exit passageway to other areas of a building.

4.   [Reserved.]

5.   Where the roof has a slope less than four units vertical in 12 units horizontal (33.3-percent slope), a hose connection shall be located to serve the roof or at the highest landing of an interior exit stairway with access to the roof provided in accordance with Section 1011.12.

6.   Where the most remote portion of a nonsprinklered floor or story is more than 150 feet (45 720 mm) from a hose connection or the most remote portion of a sprinklered floor or story is more than 200 feet (60 960 mm) from a hose connection, the fire code official is authorized to require that additional hose connections be provided in approved locations."

11.   Revise the exception to Section 905.4.1 to delete "approved."

12.   Revise Section 905.5.3 by replacing "approved" with "permitted."

13.   Revise Section 905.7.1 by deleting "in an approved manner."

14.   Revise Section 905.9 by adding the following after the last sentence:

"All valves in supply pipes to standpipe systems shall be secured open."

(Amend Coun. J. 2-19-20, p. 14473, Art. II, § 31; Amend Coun. J. 10-7-20, p. 21791, Art. II, § 15))

14B-9-906 Portable fire extinguishers.

The provisions of Section 906 of IBC are adopted by reference with the following modifications:

1.   Add new exceptions 3 and 4 to item 1 in Section 906.1 to read:

"3.   In Group R-2 occupancies not more than three stories above grade plane and having a floor area not exceeding 3,000 square feet (279 m 2 ).

4.   In one-story buildings of B, F, M, or S occupancy having a building area not exceeding 3,000 square feet (279 m 2 )."

2.   Revise item 4 in Section 906.1 to read:

"4.   On each floor of structures under construction, except Group R-3, R-4 and R-5 occupancies, in accordance with Chapter 33."

3.   Delete item 5 in Section 906.1.

4.   Delete Table 906.1.

5.   Revise Section 906.4 to read:

"906.4 Cooking equipment fires.

Fire extinguishers provided for the protection of cooking equipment shall be of a type compatible with the automatic fire-extinguishing system agent. Cooking equipment involving solid fuels or vegetable or animal oils and fats shall be protected by a Class K-rated portable extinguisher in accordance with the Chicago Fire Prevention Code."

6.   Revise Section 906.6 to read:

"906.6 Unobstructed and unobscured.

Portable fire extinguishers shall not be obstructed or obscured from view. Where a fire extinguisher is likely to be obscured by piles of stock, lumber or otherwise, a sign shall be installed and maintained which will indicate the location of the fire extinguisher in a manner legible at a distance of at least 50 feet (15.2 m)."

(Amend Coun. J. 2-19-20, p. 14473, Art. II, § 32)

14B-9-907 Fire alarm and detection systems.

The provisions of Section 907 of IBC are adopted by reference with the following modifications:

1.   Revise Section 907.1.1 to read:

"907.1.1 Construction documents.

Construction documents for fire alarm systems shall be of sufficient clarity to indicate the location, nature and extent of the work proposed and show in detail that it will conform to the provisions of this code, the Chicago Electrical Code and the Chicago Fire Prevention Code."

2.   Revise Section 907.1.2 to read:

"907.1.2 Fire alarm shop drawings.

Shop drawings for fire alarm systems shall be prepared in accordance with NFPA 72 and submitted for a separate permit prior to system installation."

3.   Revise Section 907.1.3 by deleting "and approved."

4.   Add a new Section 907.1.3.1 to read:

"907.1.3.1 Notification appliances.

Occupant notification appliances shall be red. Where approved by the fire code official, occupant notification appliances may be concealed until activated."

5.   Revise Section 907.2 to read:

"907.2 Where required-new buildings and structures.

A fire alarm system installed in accordance with the provisions of this code and NFPA 72 shall be provided in new buildings and structures in accordance with Sections 907.2.1 through 907.2.23 and provide occupant notification in accordance with Section 907.5, unless other requirements are provided by another section of this code.

Not fewer than one manual fire alarm box at each exit on the level of exit discharge shall be provided to initiate a fire alarm signal for fire alarm systems employing automatic fire detectors or waterflow detection devices. Where other sections of this code allow elimination of manual fire alarm boxes due to sprinklers, manual fire alarm boxes shall be installed at each exit on the level of exit discharge.

Exception: The manual fire alarm box is not required for fire alarm systems dedicated to elevator recall control and supervisory service."

6.   Revise Section 907.2.1 and its subsections to read:

"907.2.1 Group A.

A manual fire alarm system that activates the occupant notification system in accordance with Section 907.5 shall be installed in Group A occupancies where the occupant load due to the assembly occupancy is 300 or more. Group A occupancies not separated from one another in accordance with Section 707.3.10 shall be considered as a single occupancy for the purposes of applying this section. Portions of Group E occupancies occupied for assembly purposes shall be provided with a fire alarm system as required for the Group E occupancy.

Exception: Manual fire alarm boxes are not required where the building is equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 and the occupant notification appliances will activate in accordance with Section 907.5 upon sprinkler water flow."

7.   Revise Section 907.2.2 by replacing "500" with "300."

8.   Revise the exception to Section 907.2.2 to read:

"Exception: Manual fire alarm boxes are not required where the building is equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 and the occupant notification appliances will activate in accordance with Section 907.5 upon sprinkler water flow."

9.   Delete the exception to 907.2.2.1.

10.   Revise Section 907.2.3, including the exceptions, to read:

"907.2.3 Group E.

A manual fire alarm system shall be installed in Group E occupancies. Where automatic sprinkler systems or smoke detectors are installed, such systems or detectors shall be connected to the building fire alarm system."

11.   Revise the exception to Section 907.2.4 to read:

"Exception: Manual fire alarm boxes are not required where the building is equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 and the occupant notification appliances will activate in accordance with Section 907.5 upon sprinkler water flow."

12.   Revise Section 907.2.5 by deleting "Chapters 60, 62 and 62, respectively, of."

13.   Revise the exceptions to Section 907.2.6 to read:

"Exception: Occupant notification systems are not required to be activated where private operating mode signaling installed in accordance with NFPA 72 is permitted by the fire code official and staff evacuation responsibilities are included in the fire safety and evacuation plan required by the Chicago Fire Prevention Code."

14.   Revise Section 907.2.6.1.1 by replacing "smoke alarms" with "smoke alarms, heat alarms and heat detectors" in both the heading and body.

15.   Revise Section 907.2.6.3.1 to read:

"907.2.6.3.1 System initiation.

Actuation of an automatic fire-extinguishing system, automatic sprinkler system, a manual fire alarm box or a fire detector shall initiate a private operating mode fire alarm signal that automatically notifies staff throughout the facility."

16.   Revise Section 907.2.6.3.2 to read:

"907.2.6.3.2 Manual fire alarm boxes.

Manual fire alarm boxes are not required to be located in accordance with Section 907.4.2 where manual fire alarm boxes are provided at staff-attended locations having direct supervision over areas where manual fire alarm boxes have been omitted."

17.   Revise the exceptions to Section 907.2.7 to read:

"Exception: Manual fire alarm boxes are not required where the building is equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 and the occupant notification appliances will activate in accordance with Section 907.5 upon sprinkler water flow."

18.   Delete Section 907.2.7.1.

19.   Delete exception 2 (and subitems) to Section 907.2.8.1.

19.1.   Revise Section 907.2.8.3 by replacing "smoke alarms" with "smoke alarms, heat alarms and heat detectors" in both the heading and body.

20.   Revise Section 907.2.9.1 to read:

"907.2.9.1 Manual fire alarm system.

A manual fire alarm system that activates the occupant notification system in accordance with Section 907.5 shall be installed in Group R-2 occupancies where the building contains more than 16 dwelling units or sleeping units."

21.   Revise exception 2 to Section 907.2.9.1 to read:

"2.   Manual fire alarm boxes are not required where the building is equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2 and the occupant notification appliances will activate in accordance with Section 907.5 upon a sprinkler water flow."

22.   Revise exception 3 to Section 907.2.9.1 by deleting "approved."

22.1.   Revise Section 907.2.9.2 by replacing "smoke alarms" with "smoke alarms, heat alarms and heat detectors" in both the heading and body.

23.   Delete Section 907.2.9.3.

24.   Add a new item 4 to Section 907.2.10.1 to read:

"4.   At the uppermost ceiling of each interior exit stairway."

25.   Revise Section 907.2.10 by inserting the following at the end: "Listed heat detectors complying with UL 521 or heat alarms complying with UL 539 shall be installed in accordance with Sections 907.2.10. and 907.2.10.8 and NFPA 72."

25.1.   Revise Section 907.2.10.2 to read:

"907.2.10.2 Groups R-2, R-3, R-4, R-5 and I-1.

Single- or multiple-station smoke alarms shall be installed and maintained in Groups R-2, R-3, R-4, R-5 and I-1 regardless of occupant load at all of the following locations:

1.   On the ceiling or wall outside of and within 15 feet (4572 mm) of each room used for sleeping purposes.

2.   In each room used for sleeping purposes.

3.   In each story within a dwelling unit, including basements but not including crawl spaces and uninhabitable attics. In dwellings or dwelling units with split levels and without an intervening door between the adjacent levels, a smoke alarm installed on the upper level shall suffice for the adjacent lower level provided that the lower level is less than one full story below the upper level.

4.   At the uppermost ceiling of each interior exit stairway."

25.2.   Revise Section 907.2.10.6 to read:

"907.2.10.6 Power source.

In new construction, required smoke alarms, heat alarms and heat detectors shall receive their primary power from the building wiring where such wiring is served from a commercial source and shall be equipped with a battery backup. Smoke alarms with integral strobes that are not equipped with battery backup shall be connected to an emergency electrical system in accordance with Section 2702. Smoke alarms, heat alarms and heat detectors shall emit a signal when the batteries are low. Wiring shall be permanent and without a disconnecting switch other than as required for overcurrent protection.

Exception: Smoke alarms, heat alarms and heat detectors are not required to be equipped with battery backup where they are connected to an emergency electrical system that complies with Section 2702."

25.3.   Insert a new Section 907.2.10.8 to read:

"907.2.10.8 Heat alarms and heat detectors.

A heat detector or heat alarm shall be installed in a private garage that is attached to or directly below a dwelling unit or sleeping unit and shall comply with the following:

1.   The heat alarm or heat detector shall be rated for the ambient environment.

2.   The heat alarm or heat detector shall either be interconnected with the smoke alarms within the attached dwelling unit or sleeping unit or the heat detector shall be connected to an audible occupant notification device located within the dwelling unit or sleeping unit and within 20 feet of the door nearest to the private garage and additional audible occupant notification devices, as necessary, so that occupant notification is clearly audible in all sleeping rooms over background noise levels with all intervening doors closed. Audible occupant notification is not required within the private garage.

3.   Heat alarms and heat detectors shall be installed in accordance with the manufacturer's instructions."

26.   Revise items 3 and 4 in Section 907.2.11.2 to read:

"3.   Activate directional exit markings that will become apparent in an emergency.

4.   Alarm signals shall produce a sound that is distinctive from other sounds used during normal operation."

27.   Delete Section 907.2.11.3.

28.   Revise Section 907.2.12 to read:

"907.2.12 High-rise buildings.

High-rise buildings shall be provided with an automatic smoke detection system in accordance with Section 907.2.12.1 and voice communication systems in accordance with Section 907.2.12.2.

Exceptions:

1.   Airport traffic control towers in accordance with Sections 412 and 907.2.21.

2.   Parking facilities in accordance with Section 406.9.

3.   Buildings with an occupancy in Group A-5 in accordance with Section 303.1.

4.   Low-hazard special industrial occupancies in accordance with Section 503.1.1.

5.   [Reserved.]

6.   In Group I-1 and I-2 occupancies, the alarm shall sound at a constantly attended location and private mode signaling shall be broadcast throughout the facility."

29.   Revise Section 907.2.12.1.1 to read:

"907.2.12.1.1 Area smoke detection.

Area smoke detectors shall be provided in accordance with this section. Smoke detectors shall be connected to an automatic fire alarm system. The activation of any detector required by this section shall activate the occupant notification appliances in accordance with Section 907.5. In addition to smoke detectors required by Sections 907.2.1 through 907.2.9, smoke detectors shall be located as follows:

1.   In each mechanical equipment, electrical, transformer, telephone equipment or similar room that is not provided with sprinkler protection.

2.   In each elevator machine room, machinery space, control room and control space and in elevator lobbies.

3.   Where enclosed elevator lobbies are not provided, in corridors adjoining elevators."

30.   Delete Section 907.2.12.1.2.

31.   Revise Section 907.2.12.2 to read:

"907.2.12.2 Voice communication systems.

Voice communication systems shall be provided in accordance with Sections 907.2.12.2.1 through 907.2.12.2.3.

907.2.12.2.1 Fire department two-way communication system.

A two-way fire department communication system shall be provided to operate between a fire command center complying with Section 911 and emergency two-way stations located at not less than every fifth level and every landing for a level numbered with a multiple of 5 and the uppermost landing within every interior exit stairway.

907.2.12.2.2 Selective one-way communication system.

A selective (multiple-channel) one-way communication system shall be provided to operate between a fire command center complying with Section 911 and the following areas:

1.   Elevators cars.

2.   Elevator lobbies.

3.   Within interior exit stairways at every fifth level and every landing for a level numbered with a multiple of 5.

4.   Office areas exceeding 5,000 square feet (465 m2).

5.   Corridors, at intervals not exceeding 75 feet (22.9 m).

6.   Outside of doors leading to exit stairways.

7.   Inside the main entrance of each dwelling unit and sleeping unit.

8.   Parking garages exceeding 5,000 square feet (465 m2).

907.2.12.2.3 Combined system.

The two-way fire department communication system may be combined with the one-way system where approved by the fire code official."

32.   Delete Section 907.2.12.3.

33.   Delete Section 907.2.13.

34.   Revise Section 907.2.14 by deleting "Section 3206.5 of."

35.   Revise Section 907.2.15 by replacing "an approved" with "a."

36.   Revise Section 907.2.18 to read:

"907.2.18 Deep underground buildings.

Where the lowest occupiable space is more than 60 feet (18 288 mm) below the finished floor of the lowest level of exit discharge, the structure shall be equipped throughout with a manual fire alarm system."

37.   Delete Section 907.2.19.

38.   Delete Section 907.2.20.

39.   Revise the exceptions to Section 907.3.1 to read:

"Exception: In occupancies not required to be equipped with a fire alarm system, actuation of a smoke detector shall activate a visible and an audible signal in a prominent location. Smoke detector trouble conditions shall activate a visible or audible signal in a prominent location and shall be identified as air duct detector trouble."

40.   Revise Section 907.4.2.1 by replacing "200 feet (60 960 mm)" with "100 feet (30.5 m)."

41.   Revise Section 907.4.2.4 by replacing "an approved" with "a."

42.   Revise Section 907.4.3 by deleting "approved."

43.   Revise Section 907.4.3.1 by replacing "approved" with "accepted."

44.   Delete the exception to Section 907.5.

45.   Revise Section 907.5.1 to read:

"907.5.1 Presignal feature.

Fire alarm systems in the following buildings shall be provided with a presignal feature:

1.   Group I occupancies where the floor area of any story exceeds 8,000 square feet (743 m 2 ).

2.   Group I occupancies in buildings with more than three stories.

3.   High-rise buildings.

A presignal feature shall not be installed in other building types unless approved by the fire code official. Where a presignal feature is provided, a signal shall be annunciated at a constantly attended location acceptable to the fire code official so that occupant notification can be activated in the event of fire or other emergency."

46.   Delete Section 907.5.2.2 and its subsections.

47.   Revise Section 907.5.2.3.1, including its exception, to read:

"907.5.2.3.1 Public use areas, common use areas and employee work areas.

Visible alarm notification appliances shall be provided in public use areas and common use areas. Where employee work areas have audible alarm coverage, visible alarms shall be provided at time of initial installation."

48.   Revise Table 907.5.2.3.2 by replacing "6 to 25" with "2 to 25."

49.   Revise Section 907.5.2.3.3 by adding the following at the end:

"Visible alarm notification appliances, arranged so the flashing light beam is visible in all occupiable spaces within the unit, shall be installed by the owner within dwelling units and sleeping units on an as-needed basis at the request of an occupant with a disability."

50.   Revise Section 907.6.3.1 to read:

"907.6.3.1 Annunciation.

The initiating device status shall be annunciated at an on-site location acceptable to the fire code official."

51.   Revise Section 907.6.4 by replacing "300 feet (91 440 mm)" with "200 feet (61 m)."

52.   Revise Section 907.6.4.1 by replacing "an approved location" with "a location acceptable to the fire code official."

53.   Revise Section 907.6.6 by deleting "approved."

54.   Revise exception 3 to Section 907.6.6 by replacing "one- and two-family dwellings" with "Group R-5 occupancies."

55.   Revise Section 907.6.6.1 by deleting "unless approved by the fire chief."

56.   Revise Section 907.6.6.2 to read:

"907.6.6.2 Termination of monitoring service.

Termination of fire alarm monitoring services shall be in accordance with Section 901.6."

57.   Revise Section 907.7.2 to read:

"907.7.2 Record of completion.

A record of completion in accordance with NFPA 72 verifying that the system has been installed and tested in accordance with the permit shall be provided to the fire code official."

58.   Revise Section 907.7.3 to read:

"907.7.3 Instructions.

Operating, testing and maintenance instructions and record drawings ("as-builts") and equipment specifications shall be provided on site or at an approved off-site location."

59.   Revise Section 907.8 by deleting "Section 907.8 of."

(Amend Coun. J. 2-19-20, p. 14473, Art. II, § 33; Amend Coun. J. 10-7-20, p. 21791, Art. II, § 16; Amend Coun. J. 6-25-21, p. 32180, Art. II, § 14; Amend Coun. J. 12-14-22, p. 58278, Art. III, § 2)

14B-9-908 IBC Section 908.

The provisions of Section 908 of IBC are not adopted.

(Amend Coun. J. 10-7-20, p. 21791, Art. II, § 17)

14B-9-909 Smoke control systems.

The provisions of Section 909 of IBC are not adopted. The following language is adopted as Section 909:

"909. SMOKE CONTROL SYSTEMS

909.1 Smoke control for atriums.

Where required by Section 404.5, atriums shall be provided with a smoke control system meeting the following requirements:

1.   If the volume of the atrium does not exceed 600,000 cubic feet (16 990 m 3), the exhaust system shall provide not less than 6 air changes per hour.

2.   If the volume of the atrium exceeds 600,000 cubic feet (16 990 m 3), the exhaust system shall provide not less than 4 air changes per hour.

3.   Supply openings shall be sized for at least one-half the exhaust capacity.

4.   Exhaust shall be at the top of the atrium and intake at the bottom.

5.   Smoke detectors shall be provided at the ceiling of the atrium and at the perimeter of the atrium on each floor within 15 feet (4572 mm).

6.   The smoke control system shall have completely automatic control. The automatic-control sequences shall be initiated by activation of either the automatic sprinkler system or smoke detectors in the atrium area.

909.2 Acceptance.

Buildings, or portions thereof, required by this code to comply with this section shall not be issued a certificate of occupancy until such time that the fire code official determines that the provisions of this section have been fully complied with and that the fire department has received satisfactory instruction on the operation, both automatic and manual, of the system and a written maintenance program complying with the requirements of the Chicago Fire Prevention Code has been submitted to and accepted by the fire code official.

Exception: Where phased construction is permitted, a temporary certificate of occupancy shall be allowed provided that those portions of the building to be occupied meet the requirements of this section and that the remainder does not pose a significant hazard to the safety of the proposed occupants or adjacent buildings.

909.3 Optional smoke control systems.

Optional smoke control systems shall comply with Appendix S."

(Amend Coun. J. 2-19-20, p. 14473, Art. II, § 34; Amend Coun. J. 10-7-20, p. 21791, Art. II, § 18)

14B-9-910 Smoke and heat removal.

The provisions of Section 910 of IBC are adopted by reference with the following modifications:

1.   Revise Section 910.2, excluding the exceptions, to read:

"910.2 Where required.

Smoke and heat vents or a mechanical smoke removal system shall be installed as required by Sections 910.2.1 through 910.2.3."

2.   Revise exception 1 to Section 910.2 by deleting "approved."

3.   Revise Section 910.2.1 to read:

"910.2.1 Group F-1 or S-1.

A mechanical smoke removal system installed in accordance with Section 910.4 shall be installed in buildings and portions thereof used as a Group F-1 or S-1 occupancy having more than 50,000 square feet (4645 m2) of undivided area.

Exception: Group S-1 aircraft repair hangars."

4.   Revise Section 910.2.2 to read:

"910.2.2 High-piled combustible storage.

A mechanical smoke removal system installed in accordance with Section 910.4 shall be installed in buildings and portions thereof containing high-piled combustible storage."

5.   Insert a new Section 910.2.3 to read:

"910.2.3 Exhibition areas.

Automatic smoke and heat vents in accordance with Section 910.3 shall be installed on the topmost occupied story of exhibition areas with a floor area in excess of 10,000 square feet (929 m2). Where the upper surface of a story containing an exhibition area is not a roof assembly, a mechanical smoke removal system in accordance with Section 910.4 shall be installed."

6.   Revise Section 910.3.2 by adding the following sentence at the end:

"Vents shall be spaced no greater than 100 feet (30.5 m) apart, on center."

7.   Revise Section 910.4.1 by deleting "approved."