CODES

ADOPTS WITH AMENDMENTS:

International Building Code 2018 (IBC 2018)

Heads up: There are no suggested sections in this chapter.
Heads up: There are no amended sections in this chapter.

Chapter 3 Occupancy Classification and Use

AMENDMENT
This section has been amended at the state or city level.
CALIFORNIA BUILDING CODE — MATRIX ADOPTION TABLE CHAPTER 3 — OCCUPANCY CLASSIFICATION 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.)
Adopting agency BSC BSC-CG SFM HCD DSA OSHPD BSCC DPH AGR DWR CEC CA SL SLC
1 2 1/AC AC SS SS/CC 1 1R 2 3 4 5
Adopt entire chapter X X X X X X
Adopt entire chapter as amended (amended
sections listed below)
X X X
Adopt only those sections that are listed below X
Chapter / Section
302.1 X X X
302.1.3 X
303.1 X
303.2 X
303.7 X
303.8 X
304.1 X
305.1 X
305.2 X
305.2.1 X
306.2 X
Table 307.1(1) X
Table 307.1(2) X
307.1.1 X
308.1 X
308.3 X
308.3.3 X
308.4 X
308.4.6 X
308.4.7 X
308.4.8 X
308.4.9 X
308.5 X
308.5.1 X
308.5.1.1 X
308.5.2 X
308.5.3 X
308.5.4 X
310.1 X
310.2 X X
310.3 X X
310.3.1 X
310.3.2 X
310.4 X X
310.4.1 X
310.5 X
310.6 X
313 X
314 X

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.


User note:
About this chapter: Chapter 3 provides the criteria by which buildings and structures are classified into use groups and occupancies. Through the balance of the code, occupancy classification is fundamental in the setting of features of construction; occupant safety requirements, especially building limitations; means of egress; fire protection systems; and interior finishes.


The provisions of this chapter shall control the classification of all buildings and structures as to occupancy and use. Different classifications of occupancy and use represent varying levels of hazard and risk to building occupants and adjacent properties.

302.1 Occupancy Classification

AMENDMENT
This section has been amended at the state or city level.

Occupancy classification is the formal designation of the primary purpose of the building, structure or portion thereof. Structures shall be classified into one or more of the occupancy groups listed in this section based on the nature of the hazards and risks to building occupants generally associated with the intended purpose of the building or structure. An area, room or space that is intended to be occupied at different times for different purposes shall comply with all applicable requirements associated with such potential multipurpose. Structures containing multiple occupancy groups shall comply with Section 508. Where a structure is proposed for a purpose that is not specifically listed in this section, such structure shall be classified in the occupancy it most nearly resembles based on the fire safety and relative hazard. Occupied roofs shall be classified in the group that the occupancy most nearly resembles, according to the fire safety and relative hazard, and shall comply with Section 503.1.4.

  1. Assembly (see Section 303): Groups A-1, A-2, A-3, A-4 and A-5.
  2. Business (see Section 304): Group B.
  3. Educational (see Section 305): Group E.
  4. Factory and Industrial (see Section 306): Groups F-1 and F-2.
  5. High Hazard (see Section 307): Groups H-1, H-2, H-3, H-4 and H-5.
  6. Institutional (see Section 308): Groups I-1, I-2, I-3 and I-4.
  7. Mercantile (see Section 309): Group M.
  8. Residential (see Section 310): Groups R-1, R-2, R-3 and R-4.
  9. Storage (see Section 311): Groups S-1 and S-2.
  10. Utility and Miscellaneous (see Section 312): Group U.
  1. Assembly (see Section 303): Groups A-1, A-2, A-3, A-4 and A-5.
  2. Business (see Section 304): Group B.
  3. [SFM] Organized Camps (see Section 450): Group C.
  4. Educational (see Section 305): Group E.
  5. Factory and Industrial (see Section 306): Groups F-1 and F-2.
  6. High Hazard (see Section 307): Groups H-1, H-2, H-3, H-4 and H-5.
  7. Institutional (see Section 308): Groups I-2, I-2.1, I-3 and I-4.
  8. [SFM] Laboratory (see Section 202): Group B, unless classified as Group L (see Section 453) or Group H (see Section 307).
  9. [SFM] Laboratory Suites (see Section 453): Group L.
  10. Mercantile (see Section 309): Group M.
  11. Residential (see Section 310): Groups R-1, R-2, R-2.1, R-3, R-3.1 and R-4.
  12. Storage (see Section 311): Groups S-1 and S-2.
  13. Utility and Miscellaneous (see Section 312): Group U.
  14. [SFM] Existing buildings housing existing protective social care homes or facilities established prior to 1972 (see California Fire Code Chapter 11 and California Existing Building Code).

302.1.1 Reserved

AMENDMENT
This section has been amended at the state or city level.

302.1.2 Reserved

AMENDMENT
This section has been amended at the state or city level.
Occupancy groups contain subordinate uses having similar hazards and risks to building occupants. Uses include, but are not limited to, those functional designations listed within the occupancy group descriptions in Section 302.1. Certain uses require specific limitations and controls in accordance with the provisions of Chapter 4 and elsewhere in this code.

303.1 Assembly Group A

AMENDMENT
This section has been amended at the state or city level.
Assembly Group A occupancy includes, among others, the use of a building or structure, or a portion thereof, for the gathering of persons for purposes such as civic, social or religious functions; recreation, food or drink consumption or awaiting transportation; motion picture and television production studio sound stages, approved production facilities and production locations; or for the showing of motion pictures when an admission fee is charged and when such building or structure is open to the public and has a capacity of 10 or more persons.
A building or tenant space used for assembly purposes with an occupant load of less than 50 persons shall be classified as a Group B occupancy.

The following rooms and spaces shall not be classified as Assembly occupancies:

  1. A room or space used for assembly purposes with an occupant load of less than 50 persons and accessory to another occupancy shall be classified as a Group B occupancy or as part of that occupancy.
  2. A room or space used for assembly purposes that is less than 750 square feet (70 m2) in area and accessory to another occupancy shall be classified as a Group B occupancy or as part of that occupancy.
A room or space used for assembly purposes that is associated with a Group E occupancy is not considered a separate occupancy.
Accessory religious educational rooms and religious auditoriums with occupant loads of less than 100 per room or space are not considered separate occupancies.

303.2 Assembly Group A-1

AMENDMENT
This section has been amended at the state or city level.

Group A-1 occupancy includes assembly uses, usually with fixed seating, intended for the production and viewing of the performing arts or motion pictures including, but not limited to:

  • Motion picture and television production studio sound stages, approved production facilities and production locations. (with live audiences).
  • Motion picture theaters
  • Symphony and concert halls
  • Television and radio studios admitting an audience
  • Theaters

Group A-2 occupancy includes assembly uses intended for food and/or drink consumption including, but not limited to:

  • Banquet halls
  • Casinos (gaming areas)
  • Nightclubs
  • Restaurants, cafeterias and similar dining facilities (including associated commercial kitchens)
  • Taverns and bars

Group A-3 occupancy includes assembly uses intended for worship, recreation or amusement and other assembly uses not classified elsewhere in Group A including, but not limited to:

  • Amusement arcades
  • Art galleries
  • Bowling alleys
  • Community halls
  • Courtrooms
  • Dance halls (not including food or drink consumption)
  • Exhibition halls
  • Funeral parlors
  • Greenhouses for the conservation and exhibition of plants that provide public access.
  • Gymnasiums (without spectator seating)
  • Indoor swimming pools (without spectator seating)
  • Indoor tennis courts (without spectator seating)
  • Lecture halls
  • Libraries
  • Museums
  • Places of religious worship
  • Pool and billiard parlors
  • Waiting areas in transportation terminals

Group A-4 occupancy includes assembly uses intended for viewing of indoor sporting events and activities with spectator seating including, but not limited to:

Group A-5 occupancy includes assembly uses intended for participation in or viewing outdoor activities including, but not limited to:

303.7 Fixed Guideway Transit Systems

AMENDMENT
This section has been amended at the state or city level.
[SFM] Fixed guideway transit system buildings shall conform to the requirements of this code for their occupancy classification in addition to the provisions set forth in Section 443.

303.8 Subterranean Spaces for Winery Facilities in Natural or Manmade Caves

AMENDMENT
This section has been amended at the state or city level.
[SFM] For fire and life safety requirements, see Section 446.

304.1 Business Group B

AMENDMENT
This section has been amended at the state or city level.

Business Group B occupancy includes, among others, the use of a building or structure, or a portion thereof, for office, professional or service-type transactions, including storage of records and accounts. Business occupancies shall include, but not be limited to, the following:

  • Airport traffic control towers
  • Ambulatory care facilities serving six or fewer patients (see Section 308.3.3, I-2.1 for facilities serving more than five patients)
  • Animal hospitals, kennels and pounds
  • Banks
  • Barber and beauty shops
  • Car wash
  • Civic administration
  • Clinic, outpatient [SFM] (not classified as Group I-2.1)
  • Dry cleaning and laundries: pick-up and delivery stations and self-service
  • Educational occupancies for students above the 12th grade
  • Electronic data processing
  • Food processing establishments and commercial kitchens not associated with restaurants, cafeterias and similar dining facilities not more than 2,500 square feet (232 m2) in area.
  • Laboratories: testing and research and [SFM] instruction
  • Motor vehicle showrooms
  • Post offices
  • Print shops
  • Professional services (architects, attorneys, dentists, physicians, engineers, etc.)
  • Radio and television stations
  • Telephone exchanges
  • Training and skill development not in a school or academic program (this shall include, but not be limited to, tutoring centers, martial arts studios, gymnastics and similar uses regardless of the ages served, and where not classified as a Group A occupancy).

305.1 Educational Group E

AMENDMENT
This section has been amended at the state or city level.
Educational Group E occupancy includes, among others, the use of a building or structure, or a portion thereof, by six or more than six persons at any one time for educational purposes through the 12th grade.

Exception: [SFM] A residence used as a home school for the children who normally reside at the residence. Such residences shall remain classified as Group R-2, or Group R-3 occupancies.
Religious educational rooms and religious auditoriums, which are accessory to places of religious worship in accordance with Section 303.1.4 and have occupant loads of less than 100 per room or space, shall be classified as Group A-3 occupancies.

305.2 Group E, Day Care Facilities

AMENDMENT
This section has been amended at the state or city level.
This group includes buildings and structures or portions thereof occupied by more than fivesix children older than 21/22 years of age and older who receive educational, supervision or personal care services for fewer than 24 hours per day.

Exception: [SFM] A Day-care facility not otherwise classified as an R-3 occupancy, where occupants are not capable of responding to an emergency situation without physical assistance from the staff shall be classified as Group I-4.

305.2.1 Within Places of Religious Worship

AMENDMENT
This section has been amended at the state or city level.
Rooms and spaces within places of religious worship providing such day care during religious functions shall be classified as part of the primary occupancy where not licensed for day-care purposes by the Department of Social Services.
A facility having five or fewer children receiving such day care shall be classified as part of the primary occupancy.

305.2.3 Five or Fewer Children in a Dwelling Unit

AMENDMENT
This section has been amended at the state or city level.
A facility such as the above within a dwelling unit and having five or fewer children receiving such day care shall be classified as a Group R-3 occupancy or shall comply with the International Residential CodeCalifornia Residential Code.
Factory Industrial Group F occupancy includes, among others, the use of a building or structure, or a portion thereof, for assembling, disassembling, fabricating, finishing, manufacturing, packaging, repair or processing operations that are not classified as a Group H hazardous or Group S storage occupancy.

306.2 Moderate-Hazard Factory Industrial, Group F-1

AMENDMENT
This section has been amended at the state or city level.

Factory industrial uses that are not classified as Factory Industrial F-2 Low Hazard shall be classified as F-1 Moderate Hazard and shall include, but not be limited to, the following:

  • Aircraft (manufacturing, not to include repair)
  • Appliances
  • Athletic equipment
  • Automobiles and other motor vehicles
  • Bakeries
  • Beverages: over 16-percent alcohol content
  • Bicycles
  • Boats
  • Brooms or brushes
  • Business machines
  • Cameras and photo equipment
  • Canvas or similar fabric
  • Carpets and rugs (includes cleaning)
  • Clothing
  • Construction and agricultural machinery
  • Disinfectants
  • Dry cleaning and dyeing
  • Electric generation plants
  • Electronics
  • Engines (including rebuilding)
  • Food processing establishments and commercial kitchens not associated with restaurants, cafeterias and similar dining facilities more than 2,500 square feet (232 m2) in area.
  • Furniture
  • Hemp products
  • Jute products
  • Laundries
  • Leather products
  • Machinery
  • Metals
  • Millwork (sash and door)
  • [SFM] Motion picture and television production studio Sound Stages, Approved Production Facilities and production locations (without live audiences)

  • Motion pictures and television filming (without spectators)
  • Musical instruments
  • Optical goods
  • Paper mills or products
  • Photographic film
  • Plastic products
  • Printing or publishing
  • Recreational vehicles
  • Refuse incineration
  • Shoes
  • Soaps and detergents
  • Textiles
  • Tobacco
  • Trailers
  • Upholstering
  • Wood; distillation
  • Woodworking (cabinet)

Factory industrial uses that involve the fabrication or manufacturing of noncombustible materials that during finishing, packing or processing do not involve a significant fire hazard shall be classified as F-2 occupancies and shall include, but not be limited to, the following:

  • Beverages: up to and including 16-percent alcohol content
  • Brick and masonry
  • Ceramic products
  • Foundries
  • Glass products
  • Gypsum
  • Ice
  • Metal products (fabrication and assembly)

[F] 307.1 High-Hazard Group H

AMENDMENT
This section has been amended at the state or city level.

High-hazard Group H occupancy includes, among others, the use of a building or structure, or a portion thereof, that involves the manufacturing, processing, generation or storage of materials that constitute a physical or health hazard in quantities in excess of those allowed in control areas complying with Section 414, based on the maximum allowable quantity limits for control areas set forth in Tables 307.1(1) and 307.1(2). Hazardous occupancies are classified in Groups H-1, H-2, H-3, H-4 and H-5 and shall be in accordance with this section, the requirements of Section 415 and the International Fire CodeCalifornia Fire Code. Hazardous materials stored, or used on top of roofs or canopies, shall be classified as outdoor storage or use and shall comply with the International Fire CodeCalifornia Fire Code.

TABLE 307.1(1)
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARDa, j, m, n, p
MATERIALCLASSGROUP WHEN
THE MAXIMUM
ALLOWABLE
QUANTITY IS
EXCEEDED
STORAGEbUSE-CLOSED SYSTEMSbUSE-OPEN SYSTEMSb
Solid
pounds
(cubic feet)
Liquid
gallons
(pounds)
Gas
cubic feet
at NTP
Solid
pounds
(cubic feet)
Liquid
gallons
(pounds)
Gas
cubic feet
at NTP
Solid
pounds
(cubic feet)
Liquid
gallons
(pounds)
Combustible dustNAH-2See
Note q
NANASee
Note q
NANASee
Note q
NA
Combustible fiberqLooseH-3(100)NANA(100)NANA(20)NA
Baledo(1,000)(1,000)(200)
Combustible liquidc, iIIH-2 or H-3NA120d, eNANA120dNANA30d
IIIAH-2 or H-3330d, e330d80d
IIIBNA13,200e, f13,200f3,300f
Cryogenic flammableNAH-2NA45dNANA45dNANA10d
Cryogenic inertNANANANANLNANANLNANA
Cryogenic oxidizingNAH-3NA45dNANA45dNANA10d
ExplosivesDivision 1.1 H-11e, g(1)e, gNA0.25g(0.25)gNA0.25g(0.25)g
Division 1.2H-11e, g(1)e, g0.25g(0.25)g0.25g(0.25)g
Division 1.3H-1 or H-2 510e, g (5)(10)e, g 1g(1)g1g(1)g
Division 1.4H-350e, g(50)e, g50g(50)gNANA
Division 1.4GH-3125e, lNANANANANA
Division 1.5H-11e, g(1)e, g0.25g(0.25)g0.25g(0.25)g
Division 1.6H-11e, gNANANANANA
Flammable gasGaseousH-2NANA1,000d,eNANA1,000d,eNANA
Liquefied(150)d,eNA(150)d,eNA
Flammable liquidcIAH-2 or H-3NA30d, eNANA30dNANA10d
IB and IC120d, e120d30d
Flammable liquid, combination (IA, IB, IC)NAH-2 or H-3NA120d, e, hNANA120d, hNANA30d, h
Flammable solidNAH-3125d, eNANA125dNANA25dNA
Inert gasGaseousNANANANLNANANLNANA
LiquefiedNANANANLNANANLNANA
Organic peroxideUDH-11e, g(1)e, gNA0.25g(0.25)gNA0.25g(0.25)g
IH-25d, e (5)d, e 1d(1)d1d(1)d
IIH-350d, e(50)d, e50d(50)d10d(10)d
IIIH-3125d, e(125)d, e125d(125)d25d(25)d
IVNANLNLNLNLNLNL
VNANLNLNLNLNLNL
Oxidizer4H-11g(1)e, gNA0.25g(0.25)gNA0.25g(0.25)g
3kH-2 or H-310d, e(10)d, e2d(2)d2d(2)d
2H-3250d, e(250)d, e250d(250)d50d(50)d
1NA4,000e, f(4,000)e, f4,000f(4,000)f1,000f(1,000)f
Oxidizing gasGaseousH-3NANA1,500d,eNANA1,500d,eNANA
Liquefied(150)d, eNA(150)d,eNA
PyrophoricNAH-24e, g(4)e, g50e, g1g(1)g10e, g00
Unstable (reactive)4H-11e, g(1)e, g10e, g0.25g(0.25)g2e, g0.25g(0.25)g
3H-1 or H-25d, e(5)d, e50d, e1d(1)d10d, e1d(1)d
2H-350d, e(50)d, e750d, e50d(50)d750d, e10d(10)d
1NANLNLNLNLNLNLNLNL
Water reactive3H-25d, e(5)d, eNA5d(5)dNA1d(1)d
2H-350d, e(50)d, e50d(50)d10d(10)d
1NANLNLNLNLNLNL

For SI: 1 cubic foot = 0.028 m3, 1 pound = 0.454 kg, 1 gallon = 3.785 L.

NL = Not Limited; NA = Not Applicable; UD = Unclassified Detonable.

  1. For use of control areas, see Section 414.2.
  2. The aggregate quantity in use and storage shall not exceed the quantity listed for storage.
  3. The quantities of alcoholic beverages in retail and wholesale sales occupancies shall not be limited provided the liquids are packaged in individual containers not exceeding 1.3 gallons. In retail and wholesale sales occupancies, the quantities of medicines, foodstuffs or consumer products, and cosmetics containing not more than 50 percent by volume of water-miscible liquids with the remainder of the solutions not being flammable, shall not be limited, provided that such materials are packaged in individual containers not exceeding 1.3 gallons.
  4. [SFM] In other than Group L occupancies, maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1. Where Note e also applies, the increase for both notes shall be applied accumulatively.
  5. Maximum allowable quantities shall be increased 100 percent when stored in approved storage cabinets, day boxes, gas cabinets, gas rooms or exhausted enclosures or in listed safety cans in accordance with Section 5003.9.10 of the International Fire CodeCalifornia Fire Code. Where Note d also applies, the increase for both notes shall be applied accumulatively.
  6. Quantities shall not be limited in a building equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
  7. Allowed only in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
  8. Containing not more than the maximum allowable quantity per control area of Class IA, IB or IC flammable liquids.
  9. The maximum allowable quantity shall not apply to fuel oil storage complying with Section 603.3.2 of the International Fire CodeCalifornia Fire Code.
  10. Quantities in parentheses indicate quantity units in parentheses at the head of each column.
  11. A maximum quantity of 220 pounds of solid or 22 gallons of liquid Class 3 oxidizers is allowed when such materials are necessary for maintenance purposes, operation or sanitation of equipment when the storage containers and the manner of storage are approved.
  12. Net weight of the pyrotechnic composition of the fireworks. Where the net weight of the pyrotechnic composition of the fireworks is not known, 25 percent of the gross weight of the fireworks, including packaging, shall be used.
  13. For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2 of the International Fire CodeCalifornia Fire Code.
  14. For storage and display quantities in Group M and storage quantities in Group S occupancies complying with Section 414.2.5, see Tables 414.2.5(1) and 414.2.5(2).
  15. Densely packed baled cotton that complies with the packing requirements of ISO 8115 shall not be included in this material class.
  16. The following shall not be included in determining the maximum allowable quantities:

    1. Liquid or gaseous fuel in fuel tanks on vehicles.
    2. Liquid or gaseous fuel in fuel tanks on motorized equipment operated in accordance with the International Fire CodeCalifornia Fire Code.
    3. Gaseous fuels in piping systems and fixed appliances regulated by the International Fuel Gas CodeCalifornia Mechanical Code.
    4. Liquid fuels in piping systems and fixed appliances regulated by the International Mechanical CodeCalifornia Mechanical Code.
    5. Alcohol-based hand rubs classified as Class I or II liquids in dispensers that are installed in accordance with Sections 5705.5 and 5705.5.1 of the International Fire CodeCalifornia Fire Code. The location of the alcohol-based hand rub (ABHR) dispensers shall be provided in the construction documents.
  17. Where manufactured, generated or used in such a manner that the concentration and conditions create a fire or explosion hazard based on information prepared in accordance with Section 414.1.3.
[F] TABLE 307.1(2)
MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A HEALTH HAZARDa, c, f, h, i
MATERIALSTORAGEbUSE-CLOSED SYSTEMSbUSE-OPEN SYSTEMSb
Solid
poundsd, e
Liquid gallons
(pounds)d, e
Gas cubic feet at NTP
(pounds)d
Solid
poundsd
Liquid gallons
(pounds)d
Gas cubic feet at NTP
(pounds)d
Solid
poundsd
Liquid gallons
(pounds)d
Corrosives5,000500Gaseous 810e
Liquefied (150)
5,000500Gaseous 810e
Liquefied (150)
1,000100
Highly Toxic10(10)Gaseous 20g
Liquefied (4)g
10(10)Gaseous 20g
Liquefied (4)g
3(3)
Toxic500(500)Gaseous 810e
Liquefied (150)e
500(500)Gaseous 810e
Liquefied (150)e
125(125)

For SI: 1 cubic foot = 0.028 m3, 1 pound = 0.454 kg, 1 gallon = 3.785 L.

  1. For use of control areas, see Section 414.2.
  2. The aggregate quantity in use and storage shall not exceed the quantity listed for storage.
  3. In retail and wholesale sales occupancies, the quantities of medicines, foodstuffs or consumer products, and cosmetics containing not more than 50 percent by volume of water-miscible liquids and with the remainder of the solutions not being flammable, shall not be limited, provided that such materials are packaged in individual containers not exceeding 1.3 gallons.
  4. [SFM] In other than Group L occupancies, maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1. Where Note e also applies, the increase for both notes shall be applied accumulatively.
  5. Maximum allowable quantities shall be increased 100 percent where stored in approved storage cabinets, gas cabinets or exhausted enclosures as specified in the International Fire CodeCalifornia Fire Code. Where Note d also applies, the increase for both notes shall be applied accumulatively.
  6. For storage and display quantities in Group M and storage quantities in Group S occupancies complying with Section 414.2.5, see Tables 414.2.5(1) and 414.2.5(2).
  7. Allowed only where stored in approved exhausted gas cabinets or exhausted enclosures as specified in the International Fire CodeCalifornia Fire Code.
  8. Quantities in parentheses indicate quantity units in parentheses at the head of each column.
  9. For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2 of the International Fire CodeCalifornia Fire Code.

[F] 307.1.1 Uses Other Than Group H

AMENDMENT
This section has been amended at the state or city level.

An occupancy that stores, uses or handles hazardous materials as described in one or more of the following items shall not be classified as Group H, but shall be classified as the occupancy that it most nearly resembles.

  1. Buildings and structures occupied for the application of flammable finishes, provided that such buildings or areas conform to the requirements of Section 416 and the International Fire CodeCalifornia Fire Code.
  2. Wholesale and retail sales and storage of flammable and combustible liquids in mercantile occupancies conforming to the International Fire CodeCalifornia Fire Code.
  3. Closed piping system containing flammable or combustible liquids or gases utilized for the operation of machinery or equipment.
  4. Cleaning establishments that utilize combustible liquid solvents having a flash point of 140°F (60°C) or higher in closed systems employing equipment listed by an approved testing agency, provided that this occupancy is separated from all other areas of the building by 1-hour fire barriers constructed in accordance with Section 707 or 1-hour horizontal assemblies constructed in accordance with Section 711, or both.
  5. Cleaning establishments that utilize a liquid solvent having a flash point at or above 200°F (93°C).
  6. Liquor stores and distributors without bulk storage.
  7. Refrigeration systems.
  8. The storage or utilization of materials for agricultural purposes on the premises.
  9. Stationary storage battery systems installed in accordance with the International Fire CodeCalifornia Fire Code.
  10. Corrosive personal or household products in their original packaging used in retail display.
  11. Commonly used corrosive building materials.
  12. Buildings and structures occupied for aerosol product storage shall be classified as Group S-1, provided that such buildings conform to the requirements of the International Fire CodeCalifornia Fire Code.
  13. Display and storage of nonflammable solid and nonflammable or noncombustible liquid hazardous materials in quantities not exceeding the maximum allowable quantity per control area in Group M or S occupancies complying with Section 414.2.5.
  14. The storage of black powder, smokeless propellant and small arms primers in Groups M and R-3 and special industrial explosive devices in Groups B, F, M and S, provided such storage conforms to the quantity limits and requirements prescribed in the International Fire CodeCalifornia Fire Code.
  15. Stationary fuel cell power systems installed in accordance with the International Fire CodeCalifornia Fire Code.
  16. Capacitor energy storage systems in accordance with the International Fire CodeCalifornia Fire Code.
  17. Group B higher education laboratory occupancies complying with Section 428 and Chapter 38 of the International Fire Code.[SFM] Group L occupancies defined in Section 453.

[F] 307.2 Hazardous Materials

AMENDMENT
This section has been amended at the state or city level.
Hazardous materials in any quantity shall conform to the requirements of this code, including Section 414, and the International Fire CodeCalifornia Fire Code.

Buildings and structures containing materials that pose a detonation hazard shall be classified as Group H-1. Such materials shall include, but not be limited to, the following:

The following occupancies containing explosive materials shall be classified as follows:

  1. Division 1.3 explosive materials that are used and maintained in a form where either confinement or configuration will not elevate the hazard from a mass fire to mass explosion hazard shall be allowed in H-2 occupancies.
  2. Articles, including articles packaged for shipment, that are not regulated as a Division 1.4 explosive under Bureau of Alcohol, Tobacco, Firearms and Explosives regulations, or unpackaged articles used in process operations that do not propagate a detonation or deflagration between articles shall be allowed in H-3 occupancies.

Buildings and structures containing materials that pose a deflagration hazard or a hazard from accelerated burning shall be classified as Group H-2. Such materials shall include, but not be limited to, the following:

Buildings and structures containing materials that readily support combustion or that pose a physical hazard shall be classified as Group H-3. Such materials shall include, but not be limited to, the following:

Buildings and structures containing materials that are health hazards shall be classified as Group H-4. Such materials shall include, but not be limited to, the following:

Semiconductor fabrication facilities and comparable research and development areas in which hazardous production materials (HPM) are used and the aggregate quantity of materials is in excess of those listed in Tables 307.1(1) and 307.1(2) shall be classified as Group H-5. Such facilities and areas shall be designed and constructed in accordance with Section 415.11.
Buildings and structures containing a material or materials representing hazards that are classified in one or more of Groups H-1, H-2, H-3 and H-4 shall conform to the code requirements for each of the occupancies so classified.

308.1 Institutional Group I

AMENDMENT
This section has been amended at the state or city level.
Institutional Group I occupancy includes, among others, the use of a building or structure, or a portion thereof, in which care or supervision is provided to persons who are or are not capable of self-preservation without physical assistance or in which persons are detained for penal or correctional purposes or in which the liberty of the occupants is restricted. Institutional occupancies shall be classified as Group I-1 I-2, I-2.1, I-3 or I-4. Restraint shall not be permitted in any building except in Group I-2 occupancies constructed for such use in accordance with Section 407.1.1 and Group I-3 occupancies constructed for such use in accordance with Section 408.1.2.

   Where occupancies house both ambulatory and nonambulatory persons, the more restrictive requirements shall apply.

308.2 Institutional Group I-1

AMENDMENT
This section has been amended at the state or city level.

Institutional Group I-1 occupancy shall include buildings, structures or portions thereof for more than 16 persons, excluding staff, who reside on a 24-hour basis in a supervised environment and receive custodial care. Buildings of Group I-1 shall be classified as one of the occupancy conditions specified in Section 308.2.1 or 308.2.2. This group shall include, but not be limited to, the following:

Not used. (See Group R-2.1 Section 310.1).

308.2.1 Condition 1

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include buildings in which all persons receiving custodial care who, without any assistance, are capable of responding to an emergency situation to complete building evacuation.

308.2.2 Condition 2

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include buildings in which there are any persons receiving custodial care who require limited verbal or physical assistance while responding to an emergency situation to complete building evacuation.

308.2.3 Six to 16 Persons Receiving Custodial Care

AMENDMENT
This section has been amended at the state or city level.
A facility housing not fewer than six and not more than 16 persons receiving custodial care shall be classified as Group R-4.

308.2.4 Five or Fewer Persons Receiving Custodial Care

AMENDMENT
This section has been amended at the state or city level.
A facility with five or fewer persons receiving custodial care shall be classified as Group R-3 or shall comply with the International Residential Code provided an automatic sprinkler system is installed in accordance with Section 903.3.1.3 or Section P2904 of the International Residential Code.

308.3 Institutional Group I-2

AMENDMENT
This section has been amended at the state or city level.

Institutional Group I-2 occupancy shall include buildings and structures used for medical care on a 24-hour basis for more than five persons who are incapable of self-preservation or classified as nonambulatory or bedridden. This group shall include, but not be limited to, the following:

308.3.1 Occupancy Conditions

AMENDMENT
This section has been amended at the state or city level.
Buildings of Group I-2 shall be classified as one of the occupancy conditions specified in Section 308.3.1.1 or 308.3.1.2.

308.3.1.1 Condition 1

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include facilities that provide nursing and medical care but do not provide emergency care, surgery, obstetrics or in-patient stabilization units for psychiatric or detoxification, including but not limited to nursing homes and foster care facilities.

308.3.1.2 Condition 2

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include facilities that provide nursing and medical care and could provide emergency care, surgery, obstetrics or in-patient stabilization units for psychiatric or detoxification, including but not limited to hospitals.

308.3.2 308.3.1 Five or Fewer Persons Receiving Medical Care

AMENDMENT
This section has been amended at the state or city level.
A facility with five or fewer persons receiving medical care shall be classified as Group R-3R-3.1 or shall comply with the International Residential CodeCalifornia Residential Code provided an automatic sprinkler system is installed in accordance with Section 903.3.1.3 or Section P2904R313 of the International Residential CodeCalifornia Residential Code.

308.3.2 Reserved

AMENDMENT
This section has been amended at the state or city level.

308.3.3 Institutional Group I-2.1 Ambulatory Health Care Facility

AMENDMENT
This section has been amended at the state or city level.
A healthcare facility that receives persons for outpatient medical care that may render the patient incapable of unassisted self-preservation and where each tenant space accommodates more than five such patients.

308.4 Institutional Group I-3

AMENDMENT
This section has been amended at the state or city level.

Institutional Group I-3 occupancy shall include buildings or portions of buildings and structures that are inhabited by one or more than five persons who are under restraint or security. A Group I-3 facility is occupied by persons who are generally incapable of self-preservation due to security measures not under the occupants' control which includes persons restrained. This group shall include, but not be limited to, the following:

  • Correctional centers
  • Correctional hospitals
  • Correctional nursing facilities
  • Correctional mental health facilities
  • Correctional treatment centers
  • Courthouse holding facility
  • Detention centers
  • Detention treatment room
  • Jails
  • Juvenile halls
  • Prerelease centers
  • Prisons
  • Reformatories
  • Secure interview rooms
  • Temporary holding facility

   Buildings of Group I-3 shall be classified as one of the occupancy conditions specified in Sections 308.4.1 through 308.4.5308.5.8 (see Section 408.1).

This occupancy condition shall include buildings in which free movement is allowed from sleeping areas, and other spaces where access or occupancy is permitted, to the exterior via means of egress without restraint. A Condition 1 facility is permitted to be constructed as Group R.
This occupancy condition shall include buildings in which free movement is allowed from sleeping areas and any other occupied smoke compartment to one or more other smoke compartments. Egress to the exterior is impeded by locked exits.
This occupancy condition shall include buildings in which free movement is allowed within individual smoke compartments, such as within a residential unit comprised of individual sleeping units and group activity spaces, where egress is impeded by remotecontrolled release of means of egress from such a smoke compartment to another smoke compartment.
This occupancy condition shall include buildings in which free movement is restricted from an occupied space. Remote-controlled release is provided to permit movement from sleeping units, activity spaces and other occupied areas within the smoke compartment to other smoke compartments.
This occupancy condition shall include buildings in which free movement is restricted from an occupied space. Staff-controlled manual release is provided to permit movement from sleeping units, activity spaces and other occupied areas within the smoke compartment to other smoke compartments.

308.4.6 Condition 6

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include buildings containing only one temporary holding facility with six or fewer persons under restraint or security where the building is protected throughout with a monitored automatic sprinkler system installed in accordance with Section 903.3.1.1 and where the temporary holding facility is protected throughout with an automatic fire alarm system with notification appliances. A Condition 6 building shall be permitted to be classified as a Group B occupancy.

308.4.7 Condition 7

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include buildings containing only one temporary holding facility with nine or less persons under restraint or security where limited to the first or second story, provided the building complies with Section 408.1.2.6. A Condition 7 building shall be permitted to be classified as a Group B occupancy.

308.4.8 Condition 8

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include buildings containing not more than four secure interview rooms located within the same fire area where not more than six occupants under restraint are located in the same fire area. A Condition 8 building shall be is permitted to be classified as a Group B occupancy, provided the requirements in Section 408.1.2.7 are met.

308.4.9 Condition 9

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include buildings where the use of the building is for correctional medical care or correctional mental health care.

308.5 Institutional Group I-4, Day Care Facilities

AMENDMENT
This section has been amended at the state or city level.

Institutional Group I-4 occupancy shall include buildings and structures occupied by more than five personssix clients of any age who receive custodial care for fewer than 24 hours per day by persons other than parents or guardians, relatives by blood, marriage or adoption, and in a place other than the home of the personclients cared for. This group shall include, but not be limited to, the following:

  • Adult day care
  • Child day care

308.5.1 Classification as Group E

AMENDMENT
This section has been amended at the state or city level.
A child day care facility that provides care for more than fivesix but not more than 100 children 21/2under 2 years or less of age, where the rooms in which the children are cared for are located on a level of exit discharge serving such rooms and each of these child care rooms has an exit door directly to the exterior, shall be classified as Group E.

308.5.1.1 Special Provisions

AMENDMENT
This section has been amended at the state or city level.
See Section 452.1.4 for daycares located above or below the first story.

308.5.2 Within a Place of Religious Worship

AMENDMENT
This section has been amended at the state or city level.
Rooms and spaces within places of religious worship providing such care during religious functions shall be classified as part of the primary occupancylicensed by the California State Department Health Services as required by Health and Safety Code Division 2 Chapter 3.5.

308.5.3 Five Six or Fewer Persons Receiving Care

AMENDMENT
This section has been amended at the state or city level.
A facility having fivesix or fewer persons receiving custodial care shall be classified as part of the primary occupancylicensed pursuant to Health and Safety Code Division 2 Chapter 3.5 or 3.6.

308.5.4 Five Six or Fewer Persons Receiving Care in a Dwelling Unit

AMENDMENT
This section has been amended at the state or city level.
A facility such as the above within a dwelling unit and having fivesix or fewer persons receiving custodial care shall be classified as a Group R-3 occupancy or shall comply with the International Residential Code., where occupants are not capable of responding to an emergency situation without physical assistance from the staff shall be classified as a Group I-4.

Mercantile Group M occupancy includes, among others, the use of a building or structure or a portion thereof for the display and sale of merchandise, and involves stocks of goods, wares or merchandise incidental to such purposes and accessible to the public. Mercantile occupancies shall include, but not be limited to, the following:

  • Department stores
  • Drug stores
  • Markets
  • Greenhouses for display and sale of plants that provide public access.
  • Motor fuel-dispensing facilities
  • Retail or wholesale stores
  • Sales rooms
The aggregate quantity of nonflammable solid and nonflammable or noncombustible liquid hazardous materials stored or displayed in a single control area of a Group M occupancy shall not exceed the quantities in Table 414.2.5(1).

310.1 Residential Group R

AMENDMENT
This section has been amended at the state or city level.
Residential Group R includes, among others, the use of a building or structure, or a portion thereof, for sleeping purposes when not classified as an Institutional Group I or when not regulated by the International Residential CodeCalifornia Residential Code.

310.2 Residential Group R-1

AMENDMENT
This section has been amended at the state or city level.

Residential Group R-1 occupancies containing sleeping units where the occupants are primarily transient in nature, including:

310.3 Residential Group R-2

AMENDMENT
This section has been amended at the state or city level.

Residential Group R-2 occupancies containing sleeping units or more than two dwelling units where the occupants are primarily permanent in nature, including:


310.3.1 Residential Group R-2.1

AMENDMENT
This section has been amended at the state or city level.
Residential Group R-2.1 occupancies shall include buildings, structures or parts thereof housing clients, on a 24-hour basis, who because of age, mental disability or other reasons, live in a supervised residential environment that provides personal care services.

   This occupancy may contain more than six nonambulatory and/or bedridden clients. (See Section 435 Special Provisions for Licensed 24-Hour Care Facilities in a Group R-2.1, R-3.1 or R-4 Occupancy). This group shall include, but not be limited to, the following:

Assisted living facilities such as:

Residential care facilities,

Residential care facilities for the elderly (RCFEs),

Adult residential facilities,

Congregate living health facilities,

Group homes,

Residential care facilities for the chronically ill,

Congregate living health facilities for the terminally ill.

Social rehabilitation facilities such as:

Halfway houses,

Community correctional centers,

Community correction reentry centers,

Community treatment programs,

Work furlough programs,

Alcoholism or drug abuse recovery or treatment facilities.

310.3.2 Residential Group R-2.2 (CDCR Only)

AMENDMENT
This section has been amended at the state or city level.
Residential occupancies operated by CDCR in a community located facility that provides housing and community-based program services for nontransient ambulatory participants in a nonlicensed facility with 24/7 supervision.

310.4 Residential Group R-3

AMENDMENT
This section has been amended at the state or city level.

Residential Group R-3 occupancies where the occupants are primarily permanent in nature and not classified as Group R-1, R-2, R-2.1, R-2.2, R-3.1, R-4 or I, including:

  • Buildings that do not contain more than two dwelling units
  • Care facilities that provide accommodations for five or fewer persons receiving care
  • Congregate living facilitiesresidences (nontransient) with 16 or fewer occupants

  • Congregate living facilitiesresidences (transient) with 10 or fewer occupants


    [HCD 1] Efficiency dwelling units
  • Adult care facilities that provide accommodations for six or fewer clients of any age for less than 24 hours.

    Licensing categories that may use this classification include Adult Day Programs.

    Alcoholism or drug abuse recovery homes (ambulatory only)

    Child care facilities that provide accommodations for six or fewer clients of any age for less than 24 hours.

    Licensing categories that may use this classification include, but are not limited to:

    • Day-Care Center for Mildly Ill Children,
    • Infant Care Center,
    • School Age Child Day-Care Center.

    Family Day-Care Homes that provide accommodations for 14 or fewer children, in the provider's own home for less than 24-hours.

    Adult care and child care facilities that are within a single family home are permitted to comply with the California Residential Code.

  • Lodging houses (transient) with five or fewer guest rooms and 10 or fewer occupants

310.4.1 Care Facilities Within a Dwelling

AMENDMENT
This section has been amended at the state or city level.
Care facilities for five or fewer persons receiving care that are within a single-family dwelling are permitted to comply with the International Residential Code provided an automatic sprinkler system is installed in accordance with Section 903.3.1.3 or Section P2904 of the International Residential Code.

310.4.1 Residential Group R-3.1

AMENDMENT
This section has been amended at the state or city level.
This occupancy group may include facilities licensed by a governmental agency for a residentially based 24-hour care facility providing accommodations for six or fewer clients of any age. Clients may be classified as ambulatory, nonambulatory or bedridden. A Group R-3.1 occupancy shall meet the requirements for construction as defined for Group R-3, except as otherwise provided for in Section 435 Special Provisions For Licensed 24-Hour Care Facilities in a Group R-2.1, R-3.1 or R-4 Occupancy. This group may include:

Adult residential facilities

Congregate living health facilities

Intermediate care facilities for the developmentally disabled habilitative

Intermediate care facilities for the developmentally disabled nursing

Nurseries for the full-time care of children under the age of six, but not including "infants" as defined in Chapter 2

Residential care facilities for the elderly

Small family homes and residential care facilities for the chronically ill

Exception: Group Homes licensed by the Department of Social Services which provide nonmedical board, room and care for six or fewer ambulatory children or children two years of age or younger, and which do not have any nonambulatory clients shall not be subject to regulations found in Section 435.

Pursuant to Health and Safety Code Section 13143 with respect to these exempted facilities, no city, county or public district shall adopt or enforce any requirement for the prevention of fire or for the protection of life and property against fire and panic unless the requirement would be applicable to a structure regardless of the special occupancy. Nothing shall restrict the application of state or local housing standards to such facilities if the standards are applicable to residential occupancies and are not based on the use of the structure as a facility for ambulatory children. For the purpose of this exception, ambulatory children do not include relatives of the licensee or the licensee's spouse.

310.4.2 Lodging Houses

AMENDMENT
This section has been amended at the state or city level.
Owner-occupied lodging houses with five or fewer guest rooms and 10 or fewer total occupants shall be permitted to be constructed in accordance with the International Residential CodeCalifornia Residential Code.

310.5 Residential Group R-4

AMENDMENT
This section has been amended at the state or city level.

Residential Group R-4 occupancy shall include buildings, structures or portions thereof for more than fivesix ambulatory clients, but not more than 16 persons, excluding staff, who reside on a 24-hour basis in a supervised residential environment and receive custodial care. Buildings of Group R-4 shall be classified as one of the occupancy conditions specified in Section 310.5.1 or 310.5.2. This group shall include, but not be limited to, the following:


   Group R-4 occupancies shall meet the requirements for construction as defined for Group R-3, except as otherwise provided for in this code. This occupancy classification may include a maximum six nonambulatory or bedridden clients (see Section 435, Special Provisions for Licensed 24-Hour Care Facilities in a Group R-2.1, R-3.1 or R-4). Group R-4 occupancies shall meet the requirements in Section 420.

310.6 Large Family Day-Care Homes

AMENDMENT
This section has been amended at the state or city level.
See Section 455.

310.5.1 Condition 1

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include buildings in which all persons receiving custodial care, without any assistance, are capable of responding to an emergency situation to complete building evacuation.

310.5.2 Condition 2

AMENDMENT
This section has been amended at the state or city level.
This occupancy condition shall include buildings in which there are any persons receiving custodial care who require limited verbal or physical assistance while responding to an emergency situation to complete building evacuation.
Storage Group S occupancy includes, among others, the use of a building or structure, or a portion thereof, for storage that is not classified as a hazardous occupancy.
A room or space used for storage purposes that is accessory to another occupancy shall be classified as part of that occupancy.

Storage Group S-1 occupancies are buildings occupied for storage uses that are not classified as Group S-2, including, but not limited to, storage of the following:

  • Aerosol products, Levels 2 and 3
  • Aircraft hangar (storage and repair)
  • Bags: cloth, burlap and paper
  • Bamboos and rattan
  • Baskets
  • Belting: canvas and leather
  • Books and paper in rolls or packs
  • Boots and shoes
  • Buttons, including cloth covered, pearl or bone
  • Cardboard and cardboard boxes
  • Clothing, woolen wearing apparel
  • Cordage
  • Dry boat storage (indoor)
  • Furniture
  • Furs
  • Glues, mucilage, pastes and size
  • Grains
  • Horns and combs, other than celluloid
  • Leather
  • Linoleum
  • Lumber
  • Motor vehicle repair garages complying with the maximum allowable quantities of hazardous materials listed in Table 307.1(1) (see Section 406.8)
  • Photo engravings
  • Resilient flooring
  • Self-service storage facility (mini-storage)
  • Silks
  • Soaps
  • Sugar
  • Tires, bulk storage of
  • Tobacco, cigars, cigarettes and snuff
  • Upholstery and mattresses
  • Wax candles

Storage Group S-2 occupancies include, among others, buildings used for the storage of noncombustible materials such as products on wood pallets or in paper cartons with or without single thickness divisions; or in paper wrappings. Such products are permitted to have a negligible amount of plastic trim, such as knobs, handles or film wrapping. Group S-2 storage uses shall include, but not be limited to, storage of the following:

  • Asbestos
  • Beverages up to and including 16-percent alcohol in metal, glass or ceramic containers
  • Cement in bags
  • Chalk and crayons
  • Dairy products in nonwaxed coated paper containers
  • Dry cell batteries
  • Electrical coils
  • Electrical motors
  • Empty cans
  • Food products
  • Foods in noncombustible containers
  • Fresh fruits and vegetables in nonplastic trays or containers
  • Frozen foods
  • Glass
  • Glass bottles, empty or filled with noncombustible liquids
  • Gypsum board
  • Inert pigments
  • Ivory
  • Meats
  • Metal cabinets
  • Metal desks with plastic tops and trim
  • Metal parts
  • Metals
  • Mirrors
  • Oil-filled and other types of distribution transformers
  • Parking garages, open or enclosed
  • Porcelain and pottery
  • Stoves
  • Talc and soapstones
  • Washers and dryers

Buildings and structures of an accessory character and miscellaneous structures not classified in any specific occupancy shall be constructed, equipped and maintained to conform to the requirements of this code commensurate with the fire and life hazard incidental to their occupancy. Group U shall include, but not be limited to, the following:

  • Agricultural buildings
  • Aircraft hangars, accessory to a one- or two-family residence (see Section 412.4)
  • Barns
  • Carports
  • Communication equipment structures with a gross floor area of less than 1,500 square feet (139 m2)
  • Fences more than 6 feet (1829 mm) in height
  • Grain silos, accessory to a residential occupancy
  • Livestock shelters
  • Private garages
  • Retaining walls
  • Sheds
  • Stables
  • Tanks
  • Towers
Greenhouses not classified as another occupancy shall be classified as Use Group U.

Section 313 Laboratories Group L [SFM]

AMENDMENT
This section has been amended at the state or city level.

313.1 Group L Laboratories [SFM]

AMENDMENT
This section has been amended at the state or city level.
Group L occupancy includes the use of a building or structure, or a portion thereof, containing one or more laboratory suites as defined in Section 453.

Section 314 Organized Camps Group C [SFM]

AMENDMENT
This section has been amended at the state or city level.

314.1 Organized Camps Group C [SFM]

AMENDMENT
This section has been amended at the state or city level.
An organized camp is a site with programs and facilities established for the primary purpose of providing an outdoor group living experience with social, spiritual, educational or recreational objectives, for five days or more during one or more seasons of the year.
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