Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED

ON OCCUPANCY AND USE (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user.

See Chapter 1 for state agency authority and building applications.)

(continued)

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CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

CHAPTER 4 – SPECIAL DETAILED REQUIREMENTS BASED

ON OCCUPANCY AND USE—continued

(continued)

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CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

CHAPTER 4 – SPECIAL DETAILED REQUIREMENTS BASED

ON OCCUPANCY AND USE—continued

(continued)

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CHAPTER 4 – SPECIAL DETAILED REQUIREMENTS BASED

ON OCCUPANCY AND USE—continued

The state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

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CHAPTER 4

SPECIAL DETAILED REQUIREMENTS

BASED ON OCCUPANCY AND USE

User note:

About this chapter: Chapter 4 provides detailed criteria for special uses and occupancies. The unique characteristics of a live/work unit as opposed to a 30-story high-rise building call for specific standards for each. Twenty-seven sections address covered and open mall buildings, atriums, hospitals, stages, buildings where hazardous materials are used and stored, jails and prisons, ambulatory care facilities and storm shelters, among other special occupancy issues.

Repair garages shall be constructed in accordance with the California Fire Code and Sections 406.2 and 406.8. This occupancy shall not include motor fuel-dispensing facilities, as regulated in Section 406.7.

406.8.1 Ventilation. Repair garages shall be mechanically ventilated in accordance with the California Mechanical Code . The ventilation system shall be controlled at the entrance to the garage.

[F] 406.8.2 Gas detection system. Repair garages used for repair of vehicles fueled by nonodorized gases includ- ing but not limited to hydrogen and nonodorized LNG, shall be provided with a gas detection system that com- plies with Section 916. The gas detection system shall be designed to detect leakage of nonodorized gaseous fuel. Where lubrication or chassis service pits are provided in garages used for repairing nonodorized LNG-fueled vehi- cles, gas sensors shall be provided in such pits.

[F] 406.8.2.1 System activation. Activation of a gas detection alarm shall result in all of the following:

1. Initiation of distinct audible and visual alarm signals in the repair garage, where the ventilation system is interlocked with gas detection.

2. Deactivation of all heating systems located in the repair garage.

3. Activation of the mechanical ventilation system, where the system is interlocked with gas detection.

[F] 406.8.2.2 Failure of the gas detection system. Failure of the gas detection system shall automatically deactivate the heating system, activate the mechanical ventilation system where the system is interlocked with the gas detection system, and cause a trouble signal to sound at an approved location.

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exits and shall be separated from other areas in accordance with Section 407.3 except spaces conforming to Sections 407.2.1 through 407.2.6.

407.2.1 Waiting and similar areas. Waiting areas and similar spaces constructed as required for corridors shall be permitted to be open to a corridor, only where all of the following criteria are met:

1. The spaces are not occupied as care recipient’s sleeping rooms, treatment rooms, incidental uses listed in Table 509, in accordance with Section 509, or hazardous uses.

2. The open space is protected by an automatic smoke detection system installed in accordance with Section 907.

3. The corridors onto which the spaces open, in the same smoke compartment, are protected by an automatic smoke detection system installed in accordance with Section 907, and the smoke compartment in which the spaces are located is equipped throughout with quick-response sprinklers in accordance with Section 903.3.2.

4. The space is arranged so as not to obstruct access to the required exits.

5. Each space is located to permit direct visual super- vision by the facility staff.

407.2.2 Nurses’ stations. Spaces for care providers’, supervisory staff, doctors’ and nurses’ charting, communications and related clerical areas shall be permitted to be open to, or located within the corridor, provided the required construction along the perimeter of the corridor is maintained. Construction of nurses’ stations or portions of nurses’ stations, within the envelope of the corridor is not required to be fire-resistive rated. Nurses’ stations in new and existing facilities see the California Code of Reg- ulations, Title 19, Division 1, Chapter 1, Subchapter 1, Article 3, Section 3.11(d) for storage and equipment requirements.

In detention or secure mental health facilities, the pro- visions above applies to enclosed nurses’ stations within the corridor.

407.2.3 Psychiatric treatment areas. Areas wherein psychiatric care recipients who are not capable of self-preservation are housed, or group meeting or multipurpose therapeutic spaces other than incidental uses in accordance with Section 509, under continuous supervision by facility staff, shall be permitted to be open to the corridor, where the following criteria are met:

1. Each area does not exceed 1,500 square feet (140 m ² ).

2. The area is located to permit supervision by the facility staff.

3. The area is arranged so as not to obstruct any access to the required exits.

4. The area is equipped with an automatic smoke detection system installed in accordance with Section 907.2.

5. Not more than one such space is permitted in any one smoke compartment.

6. The walls and ceilings of the space are constructed as required for corridors.

407.2.4 Gift shops. Gift shops and associated storage that are less than 500 square feet (455 m ² ) in area shall be permitted to be open to the corridor where such spaces are constructed as required for corridors.

407.2.5 Nursing home housing units. In Group I-2, Condition 1 occupancies, in areas where nursing home residents are housed, shared living spaces, group meeting or multipurpose therapeutic spaces shall be permitted to be open to the corridor, where all of the following criteria are met:

1. The walls and ceilings of the space are constructed as required for corridors.

2. The spaces are not occupied as resident sleeping rooms, treatment rooms, incidental uses in accordance with Section 509, or hazardous uses.

3. The open space is protected by an automatic smoke detection system installed in accordance with Section 907.

4. The corridors onto which the spaces open, in the same smoke compartment, are protected by an automatic smoke detection system installed in accordance with Section 907, and the smoke compartment in which the spaces are located is equipped throughout with quick-response sprinklers in accordance with Section 903.3.2.

5. The space is arranged so as not to obstruct access to the required exits.

6. Each space is located to permit direct visual super- vision by the facility staff.

407.2.6 Nursing home cooking facilities. In Group I-2 occupancies, rooms or spaces that contain a cooking facility with domestic cooking appliances shall be permitted in fully sprinklered buildings where all of the following criteria are met:

1. The number of care recipients housed in the smoke compartment shall not be greater than 30.

2. The number of care recipients served by the cooking facility shall not be greater than 30.

3. Only one cooking facility area shall be permitted in a smoke compartment.

4. The types of domestic cooking appliances permitted shall be limited to ovens, cooktops, ranges, warmers and microwaves.

5 . The space containing the domestic cooking facility shall be arranged so as not to obstruct access to the required exit.

6 . Domestic cooking range hoods installed and constructed in accordance with the California Mechani- cal Code shall be provided over cooktops and ranges.

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accordance with Sections 403 and 404 of the California Fire Code .

407.4.1 Direct access to a corridor. Habitable rooms in Group I-2 and I-2.1 occupancies shall have an exit access door leading directly to a corridor.

Exceptions:

1. Rooms with exit doors opening directly to the outside at ground level.

2. Rooms arranged as care suites complying with Section 407.4.4.

407.4.1.1 Locking devices. Locking devices that restrict access to a care recipient’s room from the corridor and that are operable only by staff from the corridor side shall not restrict the means of egress from the care recipient’s room.

Exceptions:

1. This section shall not apply to rooms in psychiatric treatment and similar care areas.

2. Locking arrangements in accordance with Section 1010.1.9.7.

407.4.1.2 Basement exits. All rooms below grade shall have not less than one exit access that leads directly to an exterior exit door opening directly to an exit dis- charge at grade plane or the public way.

407.4.2 Distance of travel. The distance of travel between any point in a Group I-2 and I-2.1 occupancy sleeping room, not located in a care suite, and an exit access door in that room shall be not greater than 50 feet (15 240 mm).

407.4.2.1 Two means of egress. Any sleeping room of more than 1,000 square feet (93 m ² ) shall have no fewer than two exit access doors from the sleeping room located in accordance with Section 1007.1. Any room, other than sleeping rooms, with an area of more than 2,500 square feet (232 m ² ) shall have no fewer than two exit access doors from the room located in accordance with Section 1007.1.

407.4.3 Reserved.

407.4.4 Group I-2 and I-2.1 care suites. Care suites in Group I-2 and I-2.1 shall comply with Sections 407.4.4.1 through 407.4.4.4 and either Section 407.4.4.5 or 407.4.4.6.

407.4.4.1 Exit access through care suites. Exit access from all other portions of a building not classified as a care suite shall not pass through a care suite. In a care suite required to have more than one exit, one exit access is permitted to pass through an adjacent care suite provided that all of the other requirements of Sections 407.4 and 1016.2 are satisfied.

407.4.4.2 Separation. Care suites shall be separated from other portions of the building, including other care suites, not less than a one-hour fire barrier com- plying with Section 707. Each suite of rooms shall be separated from the remainder of the building by not less than a one-hour fire barrier.

¬

7 . Cooktops and ranges shall be protected in accordance with Section 904.13.

8 . A shut-off for the fuel and electrical power supply to the cooking equipment shall be provided in a location that is accessible only to staff.

9 . A timer shall be provided that automatically deactivates the cooking appliances within a period of not more than 120 minutes.

10 . A portable fire extinguisher shall be provided. Installation shall be in accordance with Section 906, and the extinguisher shall be located within a 30foot (9144 mm) distance of travel from each domestic cooking appliance.

Corridor walls shall be constructed as fire partitions in accordance with Section 708 .

407.3.1 Corridor doors. In fully sprinklered buildings, corridor doors, other than those in a wall required to be rated by Section 509.4 or for the enclosure of a vertical opening or an exit, shall not have a required fire protection rating and shall not be required to be equipped with selfclosing or automatic-closing devices, but shall provide an effective barrier to limit the transfer of smoke and shall be equipped with positive latching. In Group I-2 Occupan- cies, self-closing or automatic-closing devices are not required on corridor doors to patient sleeping rooms, treatment rooms, and offices located in areas specified in Sections 1224 and 1225, excluding offices specified in Sections 1224.21 and 1225.8. Roller latches are not permitted. Other doors shall conform to Section 716.

407.3.1.1 Swing of corridor doors. Corridor doors, other than those equipped with self-closing or auto- matic-closing devices shall not swing into the required width of corridors.

Exception: In detention and/or secure mental health facilities, doors may swing into required width of corridors as long as 44" clear is maintained with any one door open 90 degrees and clear corridor widths required in Chapter 12 can be maintained with doors open 180 degrees.

407.3.2 Glazing. In fully sprinklered buildings, fixed fully tempered or laminated glass in wood or metal frames may be used in corridor walls, provided the glazed area does not exceed 25 percent of the areas of the corridor wall of the room. The total area of glass in corridor walls is not limited when the glazing is fixed ¹ /3-hour fire-protection- rated glazing in approved frames and the size of individ- ual glazed panel does not exceed 1,296 square inches (0.836 m ² ).

Group I-2 and I-2.1 occupancies shall be provided with means of egress complying with Chapter 10 and Sections 407.4.1 through 407.4.4. The fire safety and evacuation plans provided in accordance with Section 1002.2 shall identify the building components necessary to support a defend-in-place emergency response in

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407.4.4.3 Access to corridor. Movement from habit- able rooms shall be in accordance with Sections 407.4.4.3.1, 407.4.4.3.2 and 407.4.4.5.3.

Exception: The distance of travel shall be permitted to be increased to 125 feet (38 100 mm) where an automatic smoke detection system is provided throughout the care suite and installed in accordance with NFPA 72.

407.4.4.3.1 One intervening room. Movement from habitable rooms shall not require passage through more than one intervening room and 100 feet (30 480 mm) distance of travel within the care suite.

407.4.4.3.2 Two intervening rooms. Movement from habitable rooms other than sleeping rooms located within a care suite, shall not require passage through more than two intervening rooms and 50 feet (15 240 mm) distance of exit access travel within the care suite.

Exception: The distance of travel shall be per- mitted to be increased to 100 feet (38 100 mm) where an automatic fire sprinkler system is pro- vided throughout the Group I-2 fire area and an automatic smoke detection system is provided throughout the care suite and installed in accor- dance with NFPA 72.

407.4.4.4 Doors within care suites. Doors in care suites serving habitable rooms shall be permitted to comply with one of the following:

1. Manually operated horizontal sliding doors permitted in accordance with Exception 9 to Section 1010.1.2.

2. Power-operated doors permitted in accordance with Exception 7 to Section 1010.1.2.

3. Means of egress doors complying with Section

407.4.4.5 Care suites containing sleeping room areas. Sleeping rooms shall be permitted to be grouped into care suites where one of the following criteria is met:

1. The care suite is not used as an exit access for more than eight care recipient beds.

2. The arrangement of the care suite allows for direct and constant visual supervision into the sleeping rooms by care providers.

3. An automatic smoke detection system is provided in the sleeping rooms and installed in accordance with NFPA 72.

407.4.4.5.1 Area. Care suites containing sleeping rooms shall be not greater than 7,500 square feet (696 m ² ) in area.

Exception s :

1. Care suites containing sleeping rooms shall be permitted to be not greater than 7,500 square feet (696 m ² ) in area where an automatic fire sprinkler system is pro- vided throughout the Group I-2 fire area.

2. Care suites containing sleeping rooms shall be permitted to be not greater than 10,000 square feet (929 m ² ) in area where an auto- matic fire sprinkler system is provided throughout the Group I-2 fire area and where an automatic smoke detection system is provided throughout the care suite and installed in accordance with Section 907 .

407.4.4.5.2 Exit access. Any care suite that contains sleeping rooms, of more than 1,000 square feet (93 m ² ) shall have not fewer than two exit access doors from the care suite located in accordance with Section 1007.

407.4.4.5.3 Travel distance. The travel distance between any point in a care suite containing sleeping rooms and an exit access door from that care suite shall be not greater than 100 feet (30 480 mm).

407.4.4.6 Care suites not containing sleeping rooms. Areas not containing sleeping rooms, but only treatment areas and the associated rooms, spaces or circulation space, shall be permitted to be grouped into care suites and shall conform to the limitations in Sections 407.4.4.6.1 and 407.4.4.6.2.

407.4.4.6.1 Area. Care suites of rooms, other than sleeping rooms, shall have an area not greater than 10,000 square feet ( 929 m ² ).

407.4.4.6.2 Exit access. Any room or care suite, other than sleeping rooms, with an area of more than 2,500 square feet (232 m ² ) shall have not fewer than two exit access doors from the room or care suite located in accordance with Section 1007.

407.4.5 Group I-2 and I-2.1 nonpatient-care suites. The means of egress provisions for nonpatient-care suites shall be in accordance with the primary use and occupancy of the suite.

407.4.5.1 Separation. Nonpatient-care suites shall be separated from other portions of the building, includ- ing other suites, by not less than a 1-hour fire barrier complying with Section 707. Each suite of rooms shall be separated from the remainder of the building by not less than a 1-hour fire barrier.

407.4.5.2 Area. Nonpatient-care suites of rooms shall have an area not greater than 10,000 square feet (929 m ² ).

407.4.5.3 Automatic sprinkler system protection. Non- patient-care suites shall be located in fully sprinklered buildings.

Smoke barriers shall be provided to subdivide every story used by persons receiving care, treatment or sleeping into not fewer than two smoke compartments. Smoke barriers shall be provided to subdivide other stories with an occupant load of 50 or more persons, regard- less of occupancy or use, into not fewer than two smoke compartments. The smoke barrier shall be in accordance with Section 709.

Exceptions:

1. This requirement shall not apply to Group I-2.1 less than 10,000 ft ² (929 m ² ).

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compartments that do not contain an exit shall be provided with direct access to not less than two adjacent smoke compartments.

407.5.5 Horizontal assemblies. Horizontal assemblies supporting smoke barriers required by this section shall be designed to resist the movement of smoke. Elevator lobbies shall be in accordance with Section 3006.2.

[F] 407.6 Automatic sprinkler system. Every facility as specified herein wherein more than six clients or patients are housed or cared for on the premises on a 24-hour per- day-basis shall have installed and maintained in an opera- ble condition in every building or portion thereof where cli- ents or patients are housed, an automatic sprinkler system of a type approved by the state fire marshal. The provisions of this subsection shall apply to every person, firm or corpo- ration establishing, maintaining or operating a hospital, children’s home, children’s nursery or institution, or a home or institution for the care of aged or persons with dementia or other cognitive impairments, or any institution for persons with mental illness or persons with developmen- tal disabilities and any nursing or convalescent home, and to any state-owned or state-occupied building used for any of the types of facilities specified herein.

Exceptions:

1. This section shall not apply to homes or institutions for the 24-hour-per-day care of ambulatory children if all of the following conditions are satisfied:

1.1. The buildings or portions thereof in which children are housed are not more than two stories in height and are constructed and maintained in accordance with regulations adopted by the state fire marshal.

1.2. The buildings or portions thereof housing more than six such children shall have installed and maintained in an operable con- dition therein, a fire alarm system of a type approved by the state fire marshal. Such sys- tem shall be activated by detectors respond- ing to invisible particles of combustion other than heat, except that detectors used in clos- ets, usable under-floor areas, storage rooms, bathrooms, attached garages, attics, ple- nums, laundry rooms and rooms of similar use, may be heat-responsive devices.

1.3. The building or portions thereof do not house persons with mental illness or chil- dren with developmental disabilities.

2. This section shall not apply to any one-story building or structure of an institution or home for the care of the aged providing 24-hour-per-day care if such building or structure is used or intended to be used for the hous- ing of no more than six ambulatory aged persons. Such buildings or institutions shall have installed and main- tained in an operable condition herein a fire alarm sys- tem of a type approved by the state fire marshal. Such system shall be activated by detectors responding to either visible or invisible particles of combustion other than heat, except that detectors used in closets, usable under-floor areas, storage rooms, bathrooms, attached

2. An area in an adjoining occupancy shall be permit- ted to serve as a smoke compartment for a Group I- 2.1 facility if the following criteria are met:

2.1. The separating wall and both compartments meet the requirements of 407.5. 2.2. The Group I-2.1 is less than 22,500 ft ² (2100 m ² ).

2.3. Access from the Group I-2.1 to the other occupancy is unrestricted.

3. This requirement shall not apply to the following:

3.1. Any story, not containing a Group I-2 or I-2.1 occupancy, that is located above a story con- taining a Group I-2 or I-2.1 occupancy.

3.2. Areas that do not contain a Group I-2 or I-2.1 occupancy, where such areas are separated from the Group I-2 or I-2.1 occupancy by a horizontal exit in accordance with Section 1025.2.

3.3. Any story, not containing a Group I-2 or I-2.1 occupancy, that is located more than one story below a story containing a Group I-2 or I-2.1 occupancy.

3.4. Any story housing only mechanical equip- ment where such story is located below a story containing a Group I-2 or I-2.1 occu- pancy and is separated from the story above by a horizontal assembly having not less than a 2 hour fire resistance-rating.

407.5.1 Smoke compartment size. Stories shall be divided into smoke compartments with an area of not more than 22,500 square feet (2092 m ² ) in Group I-2 occupancies.

407.5.2 Exit access travel distance. The distance of travel from any point in a smoke compartment to a smoke barrier door shall be not greater than 200 feet (60 960 mm).

407.5.3 Refuge area. Refuge areas shall be provided within each smoke compartment. The size of the refuge area shall accommodate the occupants and care recipients from the adjoining smoke compartment. Where a smoke compartment is adjoined by two or more smoke compartments, the minimum area of the refuge area shall accommodate the largest occupant load of the adjoining compartments. The size of the refuge area shall provide the following:

1. Not less than 30 net square feet (2.8 m ² ) for each care recipient confined to bed or stretcher.
2. Not less than 6 square feet (0.56 m ² ) for each ambulatory care recipient not confined to bed or stretcher and for other occupants.

Areas or spaces permitted to be included in the calculation of refuge area are corridors, sleeping areas, treatment rooms, lounge or dining areas and other low-hazard areas.

407.5.4 Independent egress. A means of egress shall be provided from each smoke compartment created by smoke barriers without having to return through the smoke compartment from which means of egress originated. Smoke

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garages, attics, plenums, laundry rooms and rooms of similar use, may be heat-responsive devices.

3. This section shall not apply to occupancies or any alterations thereto conforming to the construction provisions of this exception which were under con- struction or in existence on March 4, 1972. “Under construction” as used in this exception shall mean that actual work had been performed on the construc- tion site and shall not be construed to mean that the hospital, home, nursery, institution, sanitarium or any portion thereof, was or is in the planning stage. The provisions of this exception shall apply to those build- ings or structures having bearing walls and structural flame protected in accordance with the provisions of Column Type 1A of Table 601.

4. In detention facilities where inmates are not restrained.

The provisions of this section shall not apply to any facility used to house six or less persons on the premises.

407.6.1 When a new addition is to be made to an unsprin- klered building or structure as permitted by this subsection, such new addition shall be sprinklered as required by this sec- tion and shall be separated from the existing building or struc- tures by not less than a two-hour fire-resistive fire barrier.

When a sprinkler system is added to an existing unsprinklered building or structure, the sprinklered area(s) shall be separated from the remainder of the building by not less than a one-hour fire-resistive fire bar- rier. The provisions of this section do not apply to any facility used to house six or less persons on the premises.

Automatic-closing doors with hold-open devices shall comply with Sections 709.5 and 716.2.

[F] 407.8 Fire alarm system. A fire alarm system shall be provided in accordance with Section 907.2.6.

[F] 407.9 Automatic fire detection. Corridors in Group I-2, Condition 1 occupancies and spaces permitted to be open to the corridors by Section 407.2 shall be equipped with an automatic fire detection system.

Group I-2, Condition 2 occupancies shall be equipped with smoke detection as required in Section 407.2.

Exceptions:

1. Corridor smoke detection is not required where sleeping rooms are provided with smoke detectors that comply with UL 268. Such detectors shall provide a visual display on the corridor side of each sleeping room and an audible and visual alarm at the care provider’s station attending each unit.

2. Corridor smoke detection is not required where sleeping room doors are equipped with automatic door-closing devices with integral smoke detectors on the unit sides installed in accordance with their listing, provided that the integral detectors perform the required alerting function.

Grounds are permitted to be fenced and gates therein are permitted to be equipped with locks,

provided that safe dispersal areas having 30 net square feet (2.8 m ² ) for bed and stretcher care recipients and 6 net square feet (0.56 m ² ) for ambulatory care recipients and other occupants are located between the building and the fence. Such provided safe dispersal areas shall be located not less than 50 feet (15 240 mm) from the building they serve. Each safe dis- persal area shall have a minimum of two exits. The aggregate clear width of exits from a safe dispersal area shall be deter- mined on the basis of not less than one exit unit of 22 inches (559 mm) for each 500 persons to be accommodated, and no exit shall be less than 44 inches (1118 mm) in width. Gates shall not be installed across corridors or passageways lead- ing to such dispersal areas unless they comply with egress requirements. Keys to gate locks shall be provided in accor- dance with the California Fire Code.

[F] 407.11 Electrical systems. In Group I-2 or I-2.1 occupancies, the essential electrical system for electrical components, equipment and systems shall be designed and constructed in accordance with the provisions of Chapter 27 and NFPA 99.

407.11.1 Storage and handling of flammable, combustible liquids and hazardous materials shall be in accordance with the California Fire Code.

407.11.2 All exterior openings in a boiler room or room containing central heating equipment, if located below openings in another story, or if less than 10 feet (3048 mm) from other doors or windows of the same building, shall be protected by a fire assembly having a three- fourths-hour fire protection rating.

407.11.3 Safety padding. See Sections 308.1 and 408.14.

407.11.4 Floor surfaces. Rooms occupied by patients whose personal liberties are restrained shall have non- combustible floor surfaces see Sections 308.1 and 804.4.3.

R-3.1 or R-4 occupancy. See Section 435 for Special Provi- sions for licensed 24-hour care facilities in a Group R-2.1, R-3.1, or R-4 occupancy.

In Group R-2.2 occupancies there shall be continuous electronic supervision via CCTV system camera coverage and monitoring the following areas: corridors, storage rooms over 100 square feet, central kitchen, and main entryway of the facility.

Children’s play structures shall have a horizontal separation from building walls, partitions and from elements of the means of egress of not less than 5 feet (1524 mm). Children’s playground structures shall have a horizontal separation from other children’s play structures of not less than 20 feet (6090 mm).

Children’s play structures shall be not greater than 300 square feet (28 m ² ) in area, unless a special investigation, acceptable to the building official, has demonstrated adequate fire safety.

Road tunnels, bridges, and other limited- access highways that are state owned shall comply with NFPA 502.

approved by the Fire Code Official.

453.4.7.6 Reserved.

174 2019 CALIFORNIA BUILDING CODE

Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

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453.4.7.7 Mechanical ventilation system balancing. Mechanical ventilation systems shall be designed and balanced such that during normal and emergency conditions the door opening forces comply with the requirements of Sections 1010.1.3 and Chapter 11B as applicable. Emergency conditions shall include: supply fan shutdown or failure, closing of smoke dampers or combination fire/smoke dampers, or emergency power.

453.6.1 Access to exits. Every room of a laboratory suite containing hazardous materials and having a floor area of 500 square feet (19 m²) or more shall have access to not less than two separate exits or exit-access doorways in accordance with Section 1006.2.

453.6.2 Door swing. All exit and exit-access doors serv- ing areas with hazardous materials shall swing in the direction of exit travel, regardless of the occupant load served.

453.6.3 Panic hardware. Exit and exit access doors from areas with hazardous materials shall not be provided with a latch or lock unless it is panic hardware or fire exit hardware.

453.6.4 Buildings more than four stories. A minimum of one exit shall be provided to serve the floor on each side of the 2-hour fire barrier and shall comply with the provi- sions of Chapter 10.

453.6.5 Reserved.

453.7.1 Multiple hazards. When a hazardous material has multiple hazards, all hazards shall be addressed and con- trolled in accordance with the provisions of this code and the California Fire Code.

453.7.2 Percentage of maximum allowable quantities. The percentage of the maximum allowable quantity of haz- ardous materials per laboratory suite permitted for each story level within a building shall be in accordance with Table 453.7.2.1.

453.7.3 Handling and transportation. The handling and transportation of hazardous materials shall be in accor- dance with Section 5003.10 of the California Fire Code.

^th story and above. Any story containing a Group L occupancy on the 11 ^th

story and above shall be provided with elevators and elevator lobbies in accordance with Sections 453.8.1 through 453.8.3.

453.8.1. An elevator that serves every story of the building shall be provided on each side of the 2-hour fire-smoke barrier.

453.8.2. An elevator lobby shall be provided on each side of the 2-hour fire-smoke barrier at each floor in accor- dance with Section 3006.

453.8.3. The elevator and its associated elevator lobbies and elevator machine rooms shall be pressurized in accor- dance with Section 909.6.

tions, alterations, or repairs. See California Fire Code Sec- tion 1116 and California Existing Building Code Section 316.

TABLE 453.7.2.1 HAZARDOUS MATERIALS QUANTITY PER LABORATORY SUITE

UL = Unlimited, NP= Not permitted a. Percentages shall be of the maximum allowable quantity per laboratory suite shown in Tables 307.1(1) and 307.1(2). Allowable hazardous material increases

for buildings equipped throughout with an automatic sprinkler system shall not be applicable to Group L occupancies. b. When an individual laboratory suite occupies more than one story, the more restrictive percentage of the maximum allowable quantity per laboratory suite

shall apply. c. The total aggregate quantity of flammable liquids on the first story below grade shall be limited to the maximum total aggregate quantity for Group B

occupancy control areas. d. The total aggregate quantity of flammable liquids on the second story level below grade shall be limited to a maximum total aggregate quantity for Group B

occupancy control areas.

Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

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