Chapter 2 — Classification of Buildings Based on Occupancy
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Sections in this chapter
2.1 Occupancy Classification
2.1.1 Every building or portion thereof and land-use shall be classified according to its use or the character of its occupancy as a building of Occupancy A, B, C, D, E, F, G, H, I, J, K, L or M as defined below:
Occupancy A: Residential Occupancy B: Educational Occupancy C: Institution for care Occupancy D: Health Care Occupancy E: Business Occupancy F: Mercantile Occupancy G: Industrial Occupancy H: Storage Occupancy I: Assembly Occupancy J: Hazardous Occupancy K: Garages Occupancy L: Utilities Occupancy M: Miscellaneous
2.1.2 Utilities under Occupancy L is incidental to operation in all other type of occupancy except Occupancy J shall be considered as non-separated use of the main occupancy but shall be taken special safety measure as per provision of this Code.
2.1.3 Any occupancy or use type not mentioned specifically in Table 3.2.6 (A-Z list) or elsewhere in this Code shall be classified by the Board of Appeals under the occupancy group to which its use most closely resembles, considering the life safety and fire hazard.
2.1.4 Each occupancy group shall be subdivided as detailed in the following sections. The detail classification including mixed occupancy provided in the Table 3.2.6 (A-Z list) is non-exhaustive. If there is any use or character of occupancy in a building which is not mentioned here, it shall be classified as per provision of Sec 2.1.3 of this Chapter.
2.1.5 Occupancy A: Residential Buildings
This occupancy type shall include any building or portion thereof providing sleeping and living accommodations to related or unrelated groups of people, with or without independent bathroom, cooking or dining facilities, except any building classified under Occupancy C or D. This Occupancy shall be subdivided as follows:
2.1.5.1 Single Family Dwelling (A1)
These shall include any building, row type or semi-detached or detached from neighboring buildings by distances required by this Code and having independent access to the plot, which is used as private dwelling by members of a single family.
2.1.5.2 Two Family Dwelling (A2)
These shall include any building, row type or semi-detached or detached from neighboring buildings by distances required by this Code and having shared or independent access for two families and having facilities for living, cooking and bathroom facilities independent of each other.
2.1.5.3 Flats or Apartments (A3)
These shall include any building or portion thereof which is provided for more than two families, having facilities for living, cooking and bathroom facilities independent of each other.
2.1.5.4 Mess, Boarding Houses, Dormitories and Hostels (A4)
These shall include any building or portion thereof in which sleeping, living accommodations and bathroom are provided for groups of related or unrelated persons, with or without common dining and facilities, and with common cooking under single management control or with individual or group cooking facilities.
2.1.5.5 Hotels and Lodging Houses (A5)
These shall include any building, a portion thereof or group of buildings under single management, in which sleeping, living accommodation and bathroom facilities are provided with or without dining facilities but without cooking facilities for adult individuals, is provided for hire on transient or permanent basis.
2.1.6 Occupancy B: Educational Facilities
This occupancy type shall include any building or portion thereof in which education, training and care are provided to children or adults. This Occupancy shall be subdivided as follows:
2.1.6.1 Educational Facilities up to Higher Secondary Level (B1)
These shall include any building or portion thereof used for purposes involving assembly for instruction, education and recreation of more than six persons on regular basis to fulfil the requirement of an academic curriculum approved by the Government up to Higher Secondary (12th Grade), and which is not covered by occupancy I.
2.1.6.2 Facilities for Training and for Above-Secondary Level (B2)
These shall include any building or portion thereof used for purposes involving assembly for instruction, education, training and recreation of more than six persons, and which is not covered by occupancy I and B1.
2.1.6.3 Pre-School Facilities (B3)
These shall include any building or portion thereof used for purposes involving care, recreation and education of children more than six in number, who have not yet reached the age to attend the school.
2.1.7 Occupancy C: Institution for Care
Buildings classified under this occupancy shall include those used for purposes of institutional care of the occupants, such as detention for correctional or penal purposes, medical or nursing care of persons suffering from illness or infirmity due to mental condition, or accommodation of children or minor, where the personal liberty of the inmate is restricted. These buildings shall ordinarily provide accommodation for sleeping, dining and other provisions approved by the authority for the occupants. This occupancy shall be subdivided as follows:
2.1.7.1 Institution for Care of Children (C1)
These shall include any building or portion thereof or group of buildings under single management used as an institution for the full time care of children or minor, each providing accommodation for sleeping, dining and other provisions approved by the authority for more than six children.
2.1.7.2 Custodial Institution for Physically Capable Adults (C2)
These shall include any building or portion thereof or group of buildings under single management used for purposes of full time care and custody of adult or mentally disabled persons but physically capable of responding to emergency.
2.1.7.3 Custodial Institution for the Incapable Adults (C3)
These shall include any building or portion thereof or group of buildings under single management used for purposes of full time care and custody of persons physically or mentally incapable of responding to emergency.
2.1.7.4 Penal and Mental Institution for Children (C4)
These shall include any building or portion thereof or group of buildings under single management used for housing children under restraint, or who are detained for penal and corrective purposes, in which personal liberty of the inmates is restricted.
2.1.7.5 Penal and Mental Institution for Adults (C5)
These shall include any building or portion thereof or group of buildings under single management used for housing persons under restraint, or who are detained for penal and corrective purposes, in which personal liberty of the inmates is restricted.
2.1.8 Occupancy D: Health Care Facilities
Buildings under this Occupancy group shall include those used for purposes of providing medical care, diagnostic facilities and treatment to persons suffering from physical discomfort, in which sleeping accommodation may or may not be provided. This Occupancy shall be subdivided as follows:
2.1.8.1 Normal Medical Facilities (D1)
These shall include any building or portion thereof or group of buildings under single management in which essential medical facilities having surgery, emergency and casualty treatment facilities, general or specialized medical and other treatment are provided to persons suffering from physical discomfort.
2.1.8.2 Emergency Medical Facilities (D2)
These shall include any building or portion thereof used for purposes of providing essential medical facilities having surgery, emergency, casualty treatment facilities, general or specialized medical and other treatment is provided to persons suffering from physical discomfort. This Type shall be equipped and designated to handle post disaster emergency, by construction it is required to remain operational during and after disasters, built as a part of disaster preparedness program.
2.1.9 Occupancy E: Business
These shall include any building or portion thereof which is used for any business transaction other than mercantile. This Occupancy shall be subdivided as follows:
2.1.9.1 Office (E1)
These shall include any building or part thereof which is used for paper works, documentations, only display of samples of Products but not for direct sale, maintaining accounts and records for administrative or consulting services, banking or activities for business purposes and professional training.
2.1.9.2 Research and Testing Laboratories (E2)
These shall include any building or portion thereof which is used as research establishment and/or test laboratory involving hazardous materials within the limit of exempted quantity permitted in this Code.
2.1.9.3 Essential Services (E3)
These shall include any building or portion thereof used for purposes of providing emergency services and utilities which are required to remain operational during and after a disaster or other emergency situations.
2.1.10 Occupancy F: Mercantile
This occupancy type shall include any building or portion thereof or group of buildings which is used for display and sale of merchandises. This Occupancy shall be subdivided as follows:
2.1.10.1 Small Shops and Market (F1)
These shall include any building or portion thereof with an area divided or undivided not exceeding 300 m², used for purposes of display and sale of merchandise, either wholesale or retail, with or without incidental storage and service facilities.
2.1.10.2 Large Shops and Market (F2)
These shall include any building or portion thereof with an area divided or undivided more than 300 m² used for purposes of display and sale of merchandise, either wholesale or retail, with or without incidental storage and service facilities.
2.1.10.3 Refueling Station (F3)
These shall include any building or portion thereof used for providing refueling and maintenance without repair services for automobiles which is moderately hazardous in nature.
2.1.11 Occupancy G: Industrial Buildings
Buildings under this Occupancy shall be subdivided on the basis of hazard potential of the contents and the processes of the industry. The hazard shall generally mean the relative danger of the start of fire and the rapidity of its spread, the danger of smoke and gases generated that pose a potential threat to the safety of the occupants of the building. Unless areas with different degrees of hazard are effectively segregated and separated in accordance with the provisions of this Code, the most hazardous area in a building shall govern its classification. This occupancy shall also include facilities for public utility services at the producer or distributor’s end that deals with generation and distribution of utility facilities. Any such building or portion thereof, which is not using hazardous material quantified and categorized in occupancy group J, shall be subdivided as follows:
2.1.11.1 Low Hazard Industry (G1)
These shall include any industrial building in which the contents are of such low combustibility and the processes conducted therein are of such low hazardous nature that danger of self-ignition and self-propagation of fire is nonexistent, the only danger being an onset of fire from external sources with the resulting danger to life and property.
2.1.11.2 Moderate Hazard Industry (G2)
These shall include any industrial building in which the contents are moderately combustible and the industrial processes conducted therein are liable to give rise to a fire which will spread with moderate rapidity, giving off considerable smoke.
2.1.12 Occupancy H: Storage Buildings
Buildings under this Occupancy group shall include any building or portion thereof used primarily for storage or sheltering of goods, wares, merchandises, vehicles or animals. Any such building or portion thereof, which is not used for storing hazardous material quantified and categorized in occupancy group J, shall be subdivided as follows:
2.1.12.1 Low Fire-risk Storage (H1)
These shall include any building or portion thereof which is used for storage of materials or other contents which do not constitute the danger of self-ignition, and in the event of fire the rate of burning shall be less than moderate rapidity.
2.1.12.2 Moderate Fire-risk Storage (H2)
These shall include any building or portion thereof which is used for storage of materials which do not constitute the danger of self-ignition but which in the event of fire will burn with moderate rapidity.
Items which shall be deemed to render a building hazardous are specified in Sec 2.14.3 along with the exempted amount for each item.
2.1.13 Occupancy I: Assembly
Buildings under this Occupancy group shall include any building or portion thereof in which groups of people congregate or assemble for recreation, amusement, social, religious, political, cultural, travel and similar purposes. This Occupancy shall be subdivided as follows:
2.1.13.1 Large Assembly with Fixed Seats (I1)
This occupancy shall include a building or a portion thereof for assembly in a space provided with fixed seats for 1000 or more persons. Assembly buildings under this subdivision may be for theatrical, operatic performances or cinema projection having or not a raised stage, proscenium curtains, scenery loft or projection screen, lighting equipment, projection booth and necessary theatrical and mechanical equipment.
2.1.13.2 Small Assembly with Fixed Seats (I2)
This occupancy type shall include any building or portion thereof primarily meant for use as described for buildings under Occupancy I1, but with fixed seats for less than 1000 persons in a space. These assembly buildings may or may not be provided with a legitimate theatrical stage or related accessories or equipment.
2.1.13.3 Large Assembly without Fixed Seats (I3)
This occupancy type shall include any building or portion thereof for assembly in a space, in which there are no fixed seats, which may or may not be provided with a legitimate stage or theatrical accessories, and which has accommodation for 300 or more persons.
2.1.13.4 Small Assembly without Fixed Seats (I4)
This occupancy type shall include any building or portion thereof primarily intended for use as described in Occupancy I3, but with accommodation for less than 300 persons in a space.
2.1.13.5 Sports Facilities (I5)
This occupancy type shall include any building or portion thereof meant for assembly of spectators for recreational and amusement purpose mainly related to sports.
2.1.14 Occupancy J: Hazardous Buildings
Any Building or portion thereof used as storage, industrial, research and other facilities dealing with hazardous material in excess of exempted quantity defined in the Table 3.2.5 or any micro-biological facilities shall be categorized in this Occupancy group. Definition of hazard and the amount of such materials which shall be deemed to render a building hazardous are set forth in Sec 2.14.3. This Occupancy shall be subdivided as follows:
2.1.14.1 Explosion Hazard Buildings (J1)
These shall include any building or portion thereof which is used for storage, handling, processing or manufacture of explosive materials and products that have explosion hazard.
2.1.14.2 Chemical Hazard Buildings (J2)
These shall include any building or portion thereof which is used for storage, handling, processing or manufacture of materials and products that are highly corrosive, toxic, poisonous and physically harmful including corrosive and toxic alkalis, acid or other liquids or chemicals, producing flame, fumes, radiation, and explosive, poisonous, irritant and corrosive gases.
2.1.14.3 Biological Hazard Buildings (J3)
These shall include any building or portion thereof which is used for storage, handling, processing or manufacture of materials and products that use biological processes and in which the risk of harmful biological threat to the occupants exist.
2.1.14.4 Radiation Hazard Buildings (J4)
These shall include any building or portion thereof which is used for storage, handling, processing or manufacture of materials and products that use nuclear and radioactive processes and in which the risk of radioactive contamination exists.
2.1.15 Occupancy K: Garage
These occupancy types shall include any building or portion thereof used one or more vehicles having containers of flammable liquid or compressed gas or carrying power or combination of any of these as a supply source for self-propelling are kept for use, sale, rental purpose, storage, repair, exhibition and all those floors of a building or portion thereof in which such vehicles are not separated by suitable cutoff to prevent fire spreading.
2.1.15.1 Parking Garage (K1)
This occupancy type shall include any building or portion thereof used solely for parking Motor Vehicles for a limited period of time.
2.1.15.2 Private Garage (K2)
This occupancy type shall include any building or portion thereof used as store of owner's or tenant's Motor Vehicles for private use for unlimited period of time.
2.1.15.3 Repair Garage and Showrooms (K3)
This occupancy type shall include any building or portion thereof wherein repair of electrical or mechanical system or denting or painting works of body is performed on any type of vehicles and includes associated floor spaces used as office, showrooms, incidental store and parking.
2.1.16 Occupancy L: Utility
This occupancy type shall include any building or portion thereof used to install any type of equipment to provide support service to any building or portion thereof or group of buildings of all occupancy groups and with special provisions for occupancy J.
This shall also include all public and private utility facilities of the consumer’s end that are located within the consumer’s site and all installations are required special care to ensure life and property safety as per provisions of this Code.
2.1.17 Occupancy M: Miscellaneous
Buildings under this Occupancy group shall include special buildings not covered in other Occupancy groups. These Occupancies shall be subdivided as follows:
2.1.17.1 Special Structure (M1)
Any building or structure which is neither listed in the A-Z list nor covered in any occupancy group provided in this Code but unique in character may be categorized in this occupancy by the Board of Appeals. Each and every individual M1 Structure shall be complied with NFPA or equivalent standards for the life and fire safety.
2.1.17.2 Fences, Tanks and Towers (M2)
These shall include fences and boundary walls over 1.5 m high, standalone structures for gravity water tank and towers for telecommunication, power distribution, air-traffic control terminal or observation towers.
2.2 Change of Use
2.2.1 Without prior permission from the Authorities having jurisdiction no change shall be made in the type of occupancy or use of any building that would place it in a different occupancy group or in a different subdivision of the same occupancy group. Such changes shall be permitted only when the land use and the building complied with the provisions of this Code and the laws of the land for such group of Occupancy.
2.3 Mixed Occupancy
2.3.1 The following occupancies shall not be required to designate as a separated
occupancy classification from uses to which they are accessory any occupancy Group
other than Occupancy Group J
(a) Assembly rooms having a floor area not more than 75 m².
(b) The administrative and clerical offices and similar offices not exceeding 25
Percent of the floor area of the major occupancy and not related to Hazardous
Buildings as defined in Occupancy J.
(c) Administrative offices, gift shops and other similar uses in Occupancy A
provided the uses do not exceed 10 Percent of the floor area of the major
occupancy.
(d) Kitchens associated with a dining area.
(e) Carports having at least two sides entirely open associated with
Occupancy A.
2.3.2 Forms of Occupancy Separations
A building is permitted to have multiple occupancy type, each type of occupancy shall be in groups, which may have combination of different occupancies and shall be separated horizontally or vertically or both accordingly as specified in the Table 3.2.1.
2.3.3 Types of Occupancy Separation
The occupancy separations shall be classified as follows:
(a) Four Hour Fire Resistive: The four hour fire resistive separation wall or slab shall have no unprotected openings therein and shall provide a fire resistance for at least four hour.
(b) Three Hour Fire Resistive: The three hour fire resistive separation wall or slab shall provide a fire resistance of not less than three hour. The total width of all openings in separation wall of any one storey shall not exceed 25 Percent of the length of that wall in that storey and no single opening shall have an area greater than 12 m². The openings shall be protected with a fire resistance assembly doors or windows providing fire resistance of at least three hour.
(c) In case of a floor slab having three hour fire resistance rating, the openings on floor slab shall be protected by vertical enclosures extended above and below such floor openings. The walls of such vertical enclosures shall be at least two hour of fire resistance. All openings in such enclosures shall be protected with fire assembly door or window having fire resistance rating of at least one and one-half hour.
(d) Two Hour Fire Resistive: The two hour fire resistive separation shall be of a construction having a fire resistance rating of not less than two hour. All openings in such separations shall be protected with a fire assembly door or window of a fire protection rating of at least one and one-half hour.
(e) One Hour Fire Resistive: The one hour fire resistive separation shall be of at least one hour fire protection construction. All openings in such separations shall be protected with a fire protection assembly door or window of at least one-half hour fire resistance.
Table 3.2.1: Fire Resistance Rating Requirements for Barrier Walls and Floor/Ceiling Assemblies between Separated Occupancies (hours)
2.4 GENERAL REQUIREMENTS OF ALL OCCUPANCIES
2.4.1 Location on Property
2.4.1.1 All plots for building construction shall have access to a public road from at least one side.
2.4.1.2 Fire separation distance shall be measured from the face of peripheral wall of a building to the adjacent property line. For the purpose of this Section, if a public road adjoining all along a property line shall get the benefit of half of Road width as a part of Fire separation distance. For two or more buildings on the same plot, distances of imaginary lines equidistant from all side of buildings shall be considered as the required fire separation distances.
2.4.1.3 The exterior walls of a building shall have a fire resistance and opening protection as specified in Tables 3.3.1 (a), 3.3.1 (b) and 3.2.3.
2.4.1.4 Any outward projected elements from the peripheral wall of a building line shall be limited to the sunshade line.
2.4.1.5 When openings in exterior walls are required to be protected due to distance from the property line, the aggregate area of such openings shall not exceed 50 Percent of the total area of the wall in each storey.
2.4.1.6 Dwellings separation walls in semi-detached or row type development shall comply with Sec 2.4.3.
2.4.2 Allowable Floor Areas
2.4.2.1 The total area of the building shall comply with Sec 1.8.3 Chapter 1 of this Part.
2.4.2.2 The floor area of the mezzanines shall be included in the area of the respective main floor.
2.4.2.3 Floor area calculation shall be divided in to two: (a) All Floor areas at and above the formation level which shall be generally included in the FAR calculation. (b) Floor areas below the formation level shall generally be excluded in FAR calculation provided the Occupancy classifications remain within Utility or Private Garages.
Table 3.2.2: Fire Resistance Ratings in Hours of Exterior Walls for Various Occupancy Groups Fire Separation Occupancy Distance A1, A2, K2 , A3, A4, A5, B,C, D, E2, F3, F4, E3, H2, J M2 E1, F1, F2, G1, I G2, H1
Up to 1.5 m 1 2 3 4 Greater than 1.5 m and up to 3 m N 1 2 3 Greater than 3 m and up to 4.5 m N N 1 2 Greater than 4.5 m and up to 9 m N N N 1 Greater than 9 m N N N N N= No requirements
Table 3.2.3: Requirements for Opening Protection Assembly Based on Fire Resistance Rating of Exterior Walls
Fire Resistance Ratings of Exterior Fire Resistance Ratings for Opening
Walls (in hours) Assembly (in hours)
4 Not permitted
3 3.0
2 1.5
1 0.5
N No requirements
2.4.3 Permitted Types of Construction
2.4.3.1 The types of construction for any occupancy shall conform to the specifications set in Table 3.2.4.
2.4.3.2 Common walls in semi-detached or row type development shall not have any unprotected openings and shall be Type I-A construction and all such wall shall comply with requirements of Party wall or Fire wall or Separation wall.
2.4.3.3 Ground floor or basement of a building used for car parking and utilities within the barriers by at least three hour fire resistive construction shall be considered as non-separated occupancy provided the building accommodates one or more of the following occupancies:
(i) A3, A5
(ii) E1, F1, F2
(iii) I2, I3, I4
2.4.3.4 Entry lobbies, mechanical and electrical rooms and other similar uses incidental to the operation of the building may be provided in the car parking floors provided that the total area of such uses remains within ⅓ (one third) of the parking floor area.
Table 3.2.4: Permitted Types of Construction and Fire Zones for Various Occupancy Groups
Occupancy Permitted Types of Construction Fire Zones
A
B
C
D
Group I and Group II* 1
E1
F1,F2
I
K1, K2, M2
E2, E3, F3, K3, M1
G Group I or Group II* 2
H
J Group I 3
*Fire resistance rating of a building shall be credited in case of the mixed type of construction on the basis of lower rated construction elements among the same group or same type used thereof.
2.4.4 General Provision for High-Rise Buildings
For the purpose of this Code, a building of any class of Occupancy will be considered as high-rise when it has floors used for human occupancy located more than 33 m from ground level or the lowest level of fire department vehicle access. The provisions of Sec 2.9.6 shall be applicable to all such buildings.
2.4.4.1 Maintenance and inspection
All fire protection systems shall be maintained and inspected on a regular basis to keep them in operative condition. The maintenance inspection shall be performed quarterly. All plumbing installations shall be maintained and inspected periodically to keep them in operative conditions.
2.4.4.2 Type of construction
All high-rise buildings shall be of Type I-A or I-B construction.
2.4.4.3 Fire detection, alarm, evacuation and extinguishment system
All high-rise buildings shall conform to regulations set forth in Part 4 of this Code
2.4.5 Helipads
2.4.5.1 General
Helipads on the roof top of a building or other locations shall be constructed in accordance with this Section.
2.4.5.2 Size
The minimum dimension of the landing area for helicopters weighing less than 1600 kg shall be 6 m 6 m. There shall be an average clearance of 4 m surrounding and at the level of the landing area which shall not be less than 2 m at any point.
2.4.5.3 Construction
Helicopter landing areas and supports shall be constructed with non-combustible material.
2.4.5.4 Aviation approval
Before helipads start operating, formal approval shall be obtained from the civil aviation authority.
2.4.6 Universal Accessibility
2.4.6.1 All Building (except Occupancies G, H, M and J) shall have universal accessibility as per provisions of this Code.
2.4.6.2 Buildings have universal accessibility shall have accessible egress system.
2.5 Requirements For Occupancy A- Residential Buildings
Buildings shall be classified as Occupancy A in accordance with Sec 2.1.5.
2.5.1 Construction, Height and Allowable Area
2.5.1.1 Buildings or parts thereof classified as Occupancy A shall be limited to the type of construction set forth in Table 3.2.4 and shall not exceed in area or height as specified in Sections 1.8 and 2.4.2 of this Part.
2.5.1.2 Walls and floors separating dwelling units in the same building shall not be less than Type I-D construction.
2.5.1.3 Storage or laundry rooms in Occupancy A2, A3, A4 or A5 that are used in common by the occupants shall be at least Type I-D construction.
2.5.1.4 When a basement or a ground floor of a building of Occupancy A3 or A5 is used for parking or storage of private cars of the occupants, the parking floor shall be of at least Type I-B construction.
2.5.1.5 When the basement or ground floor of a building of Occupancy A is used wholly or partly for generator or electrical substation, the walls and floors surrounding such use shall be of at least Type I-B construction.
2.5.2 Location on Property
Buildings of Occupancy A shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in this Code.
2.5.3 Access and Exit Facilities and Egress System
2.5.3.1 Facilities for access and exit and egress or escape shall comply with the provisions set forth in this Code.
2.5.3.2 Every sleeping room in ground, first and second floors shall have at least one operable window or door for emergency escape which shall open directly into the exterior or an interior courtyard. The units shall be operable from the inside without the use of any tool to provide a minimum clear opening of 500 mm width by 600 mm height with a maximum sill height of 1 m above the floor.
2.5.4 Lighting and Ventilation
All buildings or part of a building classified as Occupancy A shall conform to the provisions of Part 3, and Chapters 1 and 3 of Part 8.
2.5.5 Sanitation
Sanitation facilities provided in all Occupancy A buildings shall conform to this Part and Chapter 7 Part 8.
2.5.6 Minimum Dimension of Habitable and Non-habitable Rooms
The minimum dimensions of habitable and non-habitable rooms are specified in Sec 1.12.2 Chapter 1 Part 3.
2.5.7 Fire detection, Alarm, Evacuation and Extinguishment
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.5.8 Shaft and Exit Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Part 4 of this Code.
2.6 Requirements For Occupancy B - Educational Buildings
Buildings shall be classified as Occupancy B in accordance with Sec 2.1.6.
2.6.1 Construction, Height and Allowable Area
Buildings or parts of buildings classified as Occupancy B shall be limited to type of construction set forth in Table 3.2.4 and comply with the provisions of Sections 1.8 and 2.4.2 of this Part to meet the requirements of height and area limitations.
2.6.1.1 Rooms or groups of rooms sharing a common space where flammable liquids, combustible dust or hazardous materials are used, stored, developed or handled in an amount exceeding that specified in Sec 2.14.3 shall be classified as Occupancy J. Such rooms or groups of rooms shall comply with the requirements of fire protection as specified in Part 4, Chapters 4 and 5.
2.6.1.2 Rooms or groups of rooms, sharing a common space or having separate spaces, served by a common corridor or passage with less than 20 percent outdoor opening of wall in a building of height 11 m or less, or three storeys or less, need not be provided with smoke detectors and standpipe or sprinkler system for fire protection provided it conforms with the access and exit requirements specified in Part 3, Chapter 1, Sec 1.6 and Part 4, Chapters 4 and 5.
2.6.1.3 Buildings of Occupancy B situated outside the jurisdiction of any municipality shall have a construction of at least two hours fire resistance.
2.6.2 Location on Property
Buildings of Occupancy B shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in Sec 2.4.1.
2.6.3 Access and Exit Facilities and Egress System
Facilities for access and exit and Egress system shall comply with the provisions set forth in Sec 1.6, Chapter 1 Part 3 and Chapter 3 Part 4.
2.6.4 Lighting, Ventilation and Sanitation
Lighting, ventilation and sanitation facilities provided in Occupancy Group B buildings shall conform to Sec 1.16, Chapter 1 Part 3 and Chapters 1 and 3 Part 8.
2.6.5 Minimum Dimensions of Class Rooms, Common Toilets and Staircases
The dimension of a class room shall be not less than 4 m on any side and shall have an area of not less than 0.75m² per student. Other provisions for minimum dimensions shall comply with the requirements set forth in Sec 1.8 of Chapter 1 Part 3.
2.6.6 Shaft and Exit Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3 Part 4.
2.6.7 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.7 Requirements For Occupancy C- Institutional Buildings
Buildings shall be classified as Occupancy C in accordance with Sec 2.1.7.
2.7.1 Construction, Height and Allowable Area
The buildings or parts thereof classified as Occupancy C shall be limited to the type of construction set forth in Table 3.2.4 and shall comply with the provisions of Sec 1.8 Chapter 1 Part 3 and Sec 2.4.2 to meet the requirements of height and area limitations.
2.7.2 Location on Property
Buildings of Occupancy C shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in Sec 2.4.1.
2.7.3 Access and Exit Facilities and Egress System
Facilities for access and exit and egress system shall comply with the provisions set forth in Sec 1.6, Chapter 1 Part 3 and Chapter 3 Part 4.
2.7.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy C shall conform to the provisions of Sec 1.16, Chapter 1 Part 3 and Chapters 1 and 3, Part 8.
2.7.5 Shaft and Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3, Part 4.
2.7.6 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.8 Requirements For Occupancy D–Health Care Facilities
Buildings shall be classified as Occupancy D in accordance with Sec 2.1.8.
2.8.1 Construction, Height and Allowable Area
The buildings or parts thereof classified as Occupancy D shall be limited to the type of construction set forth in Table 3.2.4 and shall comply with the provisions of Sec 1.8 Chapter 1 Part 3 and Sec 2.4.2 to meet the requirements of height and area limitations.
2.8.2 Location on Property
Buildings of Occupancy D shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in Sec 2.4.1.
2.8.3 Access and Exit Facilities and Egress System
Facilities for access and exit and egress system shall comply with the provisions set forth in Sec 1.6 Chapter 1, Part 3 and Chapter 3 of Part 4.
2.8.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy D shall conform to the provisions of Sec 1.16 Chapter 1 Part 3, Chapters 1 and 3 of Part 8.
2.8.5 Shaft and Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3 of Part 4.
2.8.6 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.9 Requirements For Occupancy E–Business
Buildings shall be classified as Occupancy E in accordance with Sec 2.1.9.
2.9.1 Construction, Height and Allowable Area
The buildings or parts thereof classified as Occupancy E shall be limited to the type of construction set forth in Table 3.2.4 and shall comply with the provisions of Sec 1.8 Chapter 1 Part 3 and Sec 2.4.2 to meet the requirements of height and area limitations.
2.9.2 Location on Property
Buildings of Occupancy E shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in Sec 2.4.1.
2.9.3 Access and Exit Facilities and Egress System
Facilities for access and exit and egress system shall comply with the provisions set forth in Sec 1.6 Chapter 1 Part 3, Chapter 3 of Part 4.
2.9.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy E shall conform to the provisions of Sec 1.16 Chapter 1 Part 3, Chapters 1 and 3 of Part 8.
2.9.5 Shaft and Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3 of Part 4.
2.9.6 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.10 Requirements For Occupancy F–Mercantile Buildings
Buildings shall be classified as Occupancy F in accordance with Sec 2.1.10.
2.10.1 Construction, Height and Allowable Area
The buildings or parts thereof classified as Occupancy F shall be limited to the type of construction set forth in Table 3.2.4 and shall comply with the provisions of Sec 1.8, Chapter 1 of Part 3 and Sec 2.4.2 to meet the requirements and limitations of height and area.
2.10.2 Location on Property
Buildings of Occupancy F shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in Sec 2.4.1.
2.10.3 Access and Exit Facilities and Emergency Escapes
Facilities for access and exit and emergency escape shall comply with the provisions set forth in Sec 1.6 Chapter 1 Part 3 and Chapter 3 Part 4.
2.10.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy F shall conform to the provisions of Sec 1.16 Chapter 1 Part 3, Chapters 1 and 3, Part 8.
2.10.5 Shaft and Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3, Part 4.
2.10.6 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.10.7 Special Hazards
Installations which are discharging exhaust, heating apparatus, boiler and central heating/air-conditioning plant shall conform to the provisions of this Code as specified in this Code.
2.11 Requirements For Occupancy G–Industrial Buildings
Buildings shall be classified as Occupancy G in accordance with Sec 2.1.11. A non-exhaustive and indicative list of low hazard and moderate hazard industrial uses are listed in A to Z list. Storage and use of hazardous materials shall not exceed the exempt amount specified in Sec 2.14.3.
2.11.1 Construction, Height and Allowable Area
The buildings or parts thereof classified as Occupancy G shall be limited to the type of construction set forth in Table 3.2.4 and shall comply with the provisions of Sec 1.8 of Chapter 1, Part 3 and Sec 2.4.2 to meet the requirements and limitations of height and floor area.
The ceiling height of the production area, shall confirm to the minimum volume required per workers as specified by the Bangladesh Labor Act, 2006 and other laws of the land. In any case the ceiling height and the head room clearance of a production floor shall not be less than 3.3 meter and 2.286 meter respectively.
2.11.2 Location on Property
Buildings of Occupancy G shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in Sec 2.4.1.
2.11.3 Access and Exit Facilities and Egress System
Facilities for access and exit and emergency escape shall comply with the provisions set forth in Sec 1.6 Chapter 1, Part 3 and Chapter 3, Part 4.
2.11.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy G shall conform to the provisions of Sec 1.16 Chapter 1, Part 3 and Chapters 1 and 3, Part 8. Industrial buildings having roof opening for day lighting and natural ventilation shall comply with the following requirements:
(a) The aggregate opening in roof and external windows shall not be less than 10 Percent of the floor area.
(b) For natural ventilation by means of exterior window openings, the operable window area shall not be less than 5 Percent of the total floor area.
Exception:
Industrial buildings wherein artificial lighting and mechanically operated ventilation systems of approved quality are installed, need not be provided with natural ventilation or natural lighting.
2.11.5 Shaft and Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3, Part 4.
2.11.6 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.11.7 Special Hazards
Chimneys, vents and ventilation ducts shall be constructed with noncombustible materials. Every bailer, central heating plants, electrical rooms, or hot water supply boiler shall be separated from the rest of the occupancy or use by not less than two hour fire resistive construction.
2.12 Requirements For Occupancy H–Storage Buildings
Buildings shall be classified as Occupancy H in accordance with Sec 2.1.12.
2.12.1 Construction, Height and Allowable Area
The buildings or parts thereof classified as Occupancy H shall be limited to the type of construction set forth in Table 3.2.4 and shall comply with the provisions of Sec 1.8 of Chapter 1, Part 3 and Sec 2.4.2 to meet the requirements of height and area limitations.
2.12.2 Location on Property
The location on property for Occupancy H shall conform to Sec 2.4.1.
2.12.3 Access and Exit Facilities and Egress System
Facilities for access and exit and egress system shall comply with the provisions set forth in Sec 1.6 of Chapter 1, Part 3 and Chapter 3, Part 4.
2.12.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy H shall conform to the provisions of Sec 1.16 of Chapter 1 Part 3, Chapters 1 and 3, Part 8.
2.12.4.1 Special provision
The provisions of Sec 1.16, does not apply to non-habitable spaces of H1 and H2 occupancies unless otherwise required by this Code. Ventilators of size not less than 0.25 m² shall be provided where suitable 0.30 m above the floor level for floor level ventilators and 0.30 m below the roof level for roof level ventilators. There shall be one floor level ventilator and one roof level ventilator for every 0.25 m² of the floor area. Mechanized ventilation system of approved quality shall be installed where required.
2.12.4.2 Though inhabitable, the minimum air quality of such indoor spaces shall be maintained in a way that it does not pose any health hazard to the occasional users of that space.
2.12.5 Shaft and Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3, Part 4.
2.12.6 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.12.7 Special Hazards
The storage of hazardous materials shall not exceed the exempt amount as specified in Table 3.2.5. The storage of moderate and low hazardous materials shall be separated at least by a two hour fire resistive construction.
2.13 Requirements For Occupancy I–Assembly Buildings
Buildings shall be classified as Occupancy I in accordance with Sec 2.1.13.
2.13.1 Construction, Height and Allowable Area
The buildings or parts thereof classified as Occupancy I shall be limited to the type of construction set forth in Table 3.2.4 and shall comply with the provisions of Sec 1.8 Chapter 1 Part 3 and Sec 2.4.2 to meet the requirements and limitations of height and area.
2.13.2 Location on Property
Buildings of Occupancy I shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in Sec 2.4.1.
2.13.3 Access and Exit Facilities and Egress System
Facilities for access and exit and Egress system shall comply with the provisions set forth in Sec 1.6 Chapter 1 of Part 3 and Chapter 3 of Part 4 and universally accessibility as per provisions of this Code.
2.13.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy I shall conform to the provisions of Sec 1.16 Chapter 1 Part 3, Part 3 and Chapters 1 and 3, Part 8.
2.13.5 Shaft and Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3, Part 4.
2.13.6 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code. The specification of this Section shall apply to all parts of buildings and structures that contain stages or platforms and other similar appurtenances as herein defined.
(a) Stages: A stage is a three side enclosed or partially enclosed portion of a building which is designed or used for presentation of plays or lectures or other entertainment. A stage shall be further classified as legitimate stage, regular stage and thrust stage.
(b) Stage, Legitimate: A stage wherein curtains, drops, leg drops, scenery, lighting devices or other stage effects are adjustable horizontally or vertically or suspended overhead.
(c) Stage, Regular: A stage wherein curtains, fixed drops, valances, scenery and other stage effects are suspended and are not adjustable or retractable.
(d) Stage, Thrust: A stage or platform extended beyond the proscenium line and into the audience.
2.13.6.1 Legitimate Stage
Legitimate stage shall be constructed as specified in Part 4, specifying the type of construction but shall not be less than construction Type I-C. The position of the legitimate stage extending beyond the proscenium opening line shall be permitted to be constructed with two hour fire-resistive materials. The floor of the stage may be constructed with one hour fire rating materials. Thickness of a wooden floor shall not be less than 50 mm.
2.13.6.2 Regular and Thrust Stages
Regular stages and thrust stages shall be constructed by not less than two hour fire resistive materials. Wooden floor when required in a stage shall not be less than 50 mm in thickness with one hour fire resistive rating.
2.13.6.3 Trap doors
All trap doors and any other opening in stage floors shall be equipped with tight fitting solid wood trap doors with thickness not less than 50 mm.
2.13.6.4 Stage rigging loft
The grid iron frame in the loft, housing lighting and audio equipment, all the machinery for flying scenery and fly galleries, along with their installations, shall be constructed of approved noncombustible materials.
2.13.6.5 Foot lights and stage electrical equipment
Foot lights and border lights shall be installed in a protective cover constructed of noncombustible materials.
2.13.6.6 Trim, finish and decorative hangings
All materials used in moulding and decoration around the proscenium shall be of approved noncombustible materials.
2.13.6.7 Proscenium curtain
The proscenium curtain shall be of approved fire retardant material and shall protect against passage of flame and smoke for at least 30 minutes.
2.13.7 Motion Picture Projection Rooms
2.13.7.1 Every projection room shall be constructed in conformity with the construction requirements for the type of the building in which the projection room is located. The wall opening required for projection need not have a fire protection assembly but shall be closed with glass or other approved materials.
2.13.7.2 The floor area of a projection room shall not be less than 8 m² for a single machine. The working space between the machines when more than one machine is used shall not be less than 0.75 m.
2.13.7.3 The height of the projection room shall have a minimum clear space of 2.5 m.
2.13.8 Sports Facilities
2.13.8.1 Vomiters, aisles and exits of seating galleries
Tunnels, aisles and exits of galleries shall be constructed conforming to the following
requirements.
(a) There shall be a minimum of two exits remotely located from each other
immediately to the outside for each balcony or tier. There shall be at least
three exits when seating capacity exceeds 1000 persons and four exits when it
exceeds 4000 persons. For every additional 1000 persons the exit shall be
designed to accommodate provision (f) given below.
(b) There shall be at least 0.6 m2 of space per person in the gallery. Minimum
width considered for a seat in the gallery shall be 0.45 m.
(c) There shall be a maximum of 33 seats on each side of any aisle. Minimum
width of the main aisles and the secondary aisles shall be 1.0 m and 0.7 m
respectively.
(d) Entrance and exits shall be protected by safety railings.
(e) Back to back space between two rows of seats shall not be less than 0.80 m.
(f) The evacuation time in the galleries shall not be more than 10 minutes.
(g) All tunnels, aisles and exits shall conform to safety guidelines for means of
escape set forth in Part 4.
(h) One percent of the total seat capacity shall have provisions for
accommodation with universal accessibility at the approach or exit level.
2.13.8.2 Swimming pools
Any swimming pool used or constructed for exclusive use by Occupancy A1 and is available only to the occupants and private guests shall be classified as a private swimming pool. Any swimming pool other than private swimming pool shall be classified as a public swimming pool. Swimming pools shall be constructed in conformity with the following requirements.
(a) There shall be at least 1.5 m space between any sides of a swimming pool and a rear or side property line. For street property lines, this distance shall be at least 2.0 m.
(b) Swimming pools shall be provided with overflow provision to remove scum
and other materials from the surface of the water. When water skimmers are
used for private pools there shall be one skimming device for each 50 m2 of
surface area or fraction thereof.
(c) The overflow gutters shall not be less than 75 mm deep and shall be pitched
to slope of one unit vertical to 50 units horizontal (1:50) toward drains.
(d) Public swimming pools shall be so designed that the pool water turnover is at
least once every 8 hours.
(e) Private swimming pools shall be designed so that there is a pool water
turnover at least once every 18 hours.
(f) Public swimming pools shall be equipped with filters, the capacity of which
shall be controlled to filter 140 liters per minute per m2 of surface area.
Private swimming pool filters shall not filter more than 230 liters per minute
per m2 of the surface area.
(g) The pH value of the pool water shall be between 7.0 and 7.5.
(h) All recirculation systems shall be equipped with an approved hair and lint
strainer installed in the system ahead of the pump.
(i) All swimming pool and equipment shall be designed to be emptied completely of water and the discharged water shall be disposed in an approved manner and shall not create problems in the neighboring property.
(j) Pumps, filters and other mechanical and electrical equipment shall be placed in enclosed spaces and shall not be accessible to the bathers.
(k) Used water from the pool when being discarded shall be reused as grey water for the building and its premises as per provision of Appendix G.
2.13.9 Amusement Building Fire Protection System
The fire protection system shall be as per provisions of this Code.
2.14 Requirements For Occupancy J–Hazardous Buildings
Buildings shall be classified as Occupancy J in accordance with Sec 2.1.14.
2.14.1 General
The plans for buildings and structures accommodating Occupancy J shall clearly indicate the type and intended use of materials and its processing or handling methods so as to reflect the nature of use of each portion of such buildings.
2.14.1.1 Occupancy J1
Any building or portion thereof containing any of the following items more than exempted quantity shall be classified as Occupancy J1.
(a) Combustible dusts and any similar solid material sufficiently comminuted for suspension in still air which, when so suspended, is capable of self-sustained combustion.
(b) Combustible liquids - Any liquid having a flash point at or above 40°C shall be known as class II and class III liquids. Combustible liquids shall be classified as follows:
(i) Liquids having flash point at or above 40°C and below 60°C.
(ii) Liquids having flash points at or above 60°C and below 95°C.
(c) Cryogenic liquids (flammable or oxidizing): Any liquid that has a boiling
point below -130°C.
(d) Flammable Gases: Any gas when mixed with air in a proportion of 13% (by volume) forms a flammable mixture under atmospheric temperature and pressure.
(e) Flammable Liquids: Any liquid that has a flash point below 40°C and has a net vapour pressure exceeding 275 kPa at 40°C. Flammable liquids shall be known as Class I liquid and shall be further classified as follows:
(i) Liquids having flash point below 25°C and having a boiling point below 40°C.
(ii) Liquids having flash point below 25°C and having a boiling point at
or above 40°C.
(iii) Liquids having flash points at or above 25°C and below 40°C.
(f) Oxidizers class 3: As determined in accordance with NFPA 43A.
(g) Oxidizing gases: As determined in accordance with NFPA 43C.
(h) Pyrophoric liquids, solids and gases that will ignite spontaneously in air at a
temperature of 55°C or below.
(i) Unstable (reactive) materials class 3, non-detonable as determined in accordance with NFPA 704.
(j) Combustible fibers: Includes readily ignitable fibers like cotton, sisal, jute hemp, tow, cocoa fiber, oakum, baled waste, baled waste paper, kapok, hay, straw, excelsior, Spanish moss and other similar materials.
(k) Flammable solid: Any solid including blasting agent or explosive that is liable to cause fire through absorption of moisture, spontaneous chemical change or retained heat from manufacturing or processing, or which when ignited burns so vigorously and persistently as to create a serious hazard.
(l) Organic peroxides, Class II and Class III as determined in accordance with NFPA 43B.
(m) Oxidizers Class I and Class II as determined in accordance with NFPA 43A.
(n) The bulk storage of unstable (reactive) materials Class 1 and Class 2 as determined in accordance with NFPA 704, water reactive materials, Class 2 and Class 3 which react with water to release a gas that is either flammable or present a health hazard as determined in accordance with NFPA 704.
2.14.1.2 Occupancy J2
Any building or portion thereof containing the following shall be classified as Occupancy J2:
(a) Corrosives: Any substance that causes visible destruction of or irreversible alteration in living tissues by chemical action at the site of contact.
(b) Highly toxic materials: The materials falling in this category are as follows:
(i) Oral Toxicity: A chemical that has a median lethal dose of 50 mg or less per kg of body weight when administered orally to albino rats weighing between 200 and 300 gm each.
(ii) Toxicity of Inhalation: A chemical that has a median lethal concentration in air of 200 ppm or less by volume of gas or vapors, or 2 mg per liter or less of mist, fume or dust, when administered by continuous inhalation for 1 hour (or less if death occurs within 1 hour) to albino rats weighing between 200 and 300 grams each.
(iii) Toxicity by Skin Absorption : A chemical that has median lethal dose of 200 mg or less per kg of body weight when administered by continuous contact for 24 hours (or less if death occurs within 24 hours) with the bare skin of albino rabbits weighing between 2 and 3 kg each.
(iv) Irritants: Any noncorrosive chemical or substance which causes a reversible inflammatory effect on living tissues by chemical action at the site of contact.
(v) Radioactive Material: Any material or combination of materials that spontaneously emit ionizing radiation.
(vi) Sensitizers: A chemical or substance that causes a substantial proportion of exposed people or animals to develop an allergic reaction in normal tissue after repeated exposure.
(c) The Occupancy J2 shall also include among others the followings:
(i) Dry cleaning establishments using flammable solvents.
(ii) Explosive manufacturing.
(iii) Paint or solvent manufacturing (flammable base).
(iv) Pyrexin plastic manufacturing.
(v) Sodium nitrate or ammonium nitrate.
(vi) Storage of combustible film.
2.14.1.3 Occupancy J3
Any building or portion thereof which is used for storage, handling, processing or manufacture of materials and products that use biological processes and in which the risk of harmful biological threat to the occupants exist, shall comply with the guidelines specified by the Department of Health.
2.14.1.4 Occupancy J4
Any building or portion thereof which is used for storage, handling, processing or manufacture of materials and products that use nuclear and radioactive processes and in which the risk of radioactive contamination exists, shall comply with the guidelines specified by Bangladesh Atomic Energy Commission.
2.14.2 Special Provisions
2.14.2.1 The following shall not be included in Occupancy J but shall be classified in the occupancy group which they most nearly resemble and such classification shall be approved by the Authority:
(a) All buildings and structures and parts thereof which contain less than the exempt quantities as specified in Table 3.2.5, when such buildings comply with the fire protection provisions of this Code.
(b) Rooms containing flammable liquid in lightly closed containers of 4 litre capacity or less for retail sales or private use on the premises and in quantities not exceeding 820 litres/m² of room area.
(c) Retail paint sales rooms with quantities not exceeding 820 litres/m² of room area.
(d) Closed systems housing flammable or combustible liquids or gases used for the operation of machinery or equipment.
(e) Cleaning establishments.
(f) Liquor stores and distributors without bulk storage.
(g) Tire storage containing less than 10,000 vehicle tires.
(h) The storage or use of materials for agricultural purposes for use on the premises.
(i) Pyrophoric solids or liquids not exceeding 3 m3 in storage cabinet located in a building that is equipped throughout with an automatic sprinkler system provided in accordance with the fire protection provisions of this Code.
(j) Pyrophoric solids or liquids not exceeding 3 kg in storage cabinet located in a building that is provided with an automatic sprinkler system installed in accordance with the fire protection provisions in accordance to Part 4 of this Code.
(k) Class 2 water reactive materials not exceeding 100 kg in an approved storage cabinet located in a building that is provided with automatic sprinkler installed in accordance with the fire protection provisions in accordance to Part 4 of this Code.
2.14.3 Construction, Height and Allowable Area
2.14.3.1 The buildings or parts thereof classified as Occupancy J shall be limited to the type of construction set forth in Table 3.2.4 and shall comply with the provisions of Sec 1.8 of Chapter 1, Part 3 and Sec 2.4.2 of this Chapter to meet the requirements of height and area limitations.
2.14.3.2 Floors: The floors and spaces containing hazardous materials and in areas where motor vehicles, boats, helicopters or airplanes are stored, repaired or operated shall be of noncombustible, liquid-tight construction.
Exception: In floors and areas where no repair works are carried out may be surfaced or waterproofed with asphaltic paving materials.
2.14.3.3 Spill Control: The floors containing hazardous repair or other works shall be recessed a minimum of 100 mm so as to prevent flow of liquids to adjoining areas.
2.14.3.4 Drainage: The buildings and areas shall be provided with approved drainage system to direct the flow of liquids to an approved location or room or area designed to provide secondary containment of the hazardous materials and fire protection water.
Table 3.2.5(a): Exempted Amount of Hazardous Materials in Terms of Physical Hazard in a Control Area
Sl. Material Class/State Maximum Quantities in
No. Storage Limit Use Closed Use Open
Systems Systems
1 Flammable Class I-A 115 liters * 115 liters * 38 liters
liquids Class I-B and 454 liters * 454 liters * 115 liters
Class I-C
2 Combustible Class-II 454 liters* 454 liters* 114 liters
liquids Class-III-A 1249 liters* 1249 liters* 320 liters
Class-III-B 49962 liters* 49962 liters* 12490
liters
3 Combination of Class I-A 454 liters* 454 liters* 113
flammable liquids Class I-B liters*
Class I-C
4 Flammable Gaseous 28 m3 at NTP 28 m3 at Not
gases (Natural NTP applicable
Temperature (Natural
and Pressure) Temperature
and Pressure)
Liquefied 113 liters 113 liters Not
applicable
5 Liquefied Class I-A 113 liters 113 liters 38 liters
flammable Class I-B and 454 liters 454 liters 113 liters
Class I-C
6 Combustible Loose 2.832 m3 2.832 m3 0.57 m3
fibres Baled 28.32 m3 28.32 m3 5.7 m3
Sl. Material Class/State Maximum Quantities in
No. Storage Limit Use Closed Use Open
Systems Systems
7 Flammable Pigs, ingots, 454 kg 454 kg 454 kg
solids heavy
castings
Light 57 kg 57 kg 57 kg
castings, light
metallic
products
Scraps, 0.454 kg 0.454 kg 0.454 kg
shavings,
powders, dusts
8 Unstable Class 4 0.454kg or 0.113 kg or 0.454kg
(reactive) 0.28m3 (NTP) 0.057m3 (NTP) or 0.28m3
detonable (NTP)
Class 3 0.454kg or 0.113 kg or 0.454kg
0.28m3 (NTP) 0.057m3 (NTP) or 0.28m3
(NTP)
9 Unstable Class 4 0.454kg or 0.113 kg or 0.454kg
(reactive) 0.28m3 (NTP) 0.057m3 (NTP) or 0.28m3
detonable (NTP)
Class 3 2.27 kg or 0.454kg or 0.454kg
1.42m3 (NTP) 0.2832m3
(NTP)
Class 2 22.7kg or 70.8 22.7kg or 4.54 kg
m3 (NTP) 70.8m3 (NTP)
Class 1 Not limited or Not limited Not
21.24m3 (NTP) limited
10 Water-reactive 3 0.454 kg 11.25 kg 11.25 kg
detonable 2 0.454 kg 11.25 kg 11.25 kg
11 Water-reactive 3 2.27 kg 2.27 kg 0.454 kg
non-detonable 2 22.7 kg 22.7 kg 4.54 kg
1 Not limited Not limited Not
limited
12 Oxidizing Class 4 0.454 kg 0.1135kg 0.1135kg
Materials Class 3 4.54 kg 0.227kg 0.227kg
Class 2 113 kg 113 kg 113 kg
Class 1 1816 kg 1816 kg 1816 kg
Sl. Material Class/State Maximum Quantities in
No. Storage Limit Use Closed Use Open
Systems Systems
13 Oxidizing Gas Gaseous 42.48 m3 (NTP) 42.48 m3 Not
(NTP) applicable
Liquefied 56.78 liters 56.78 liters Not
applicable
14 Pyrophoric Not 0.454 kg or 0.056 m3 0
Material applicable 0.056 m3 (NTP) (NTP)
detonable
15 Pyrophoric Not 1.8 kg. or 1.4 0.28m3 0
Material non- applicable m3(NTP) (NTP)
detonable
16 Explosives** Division 1.1 0.454 kg 0.1135 kg 0.1135 kg
Division 1.2 0.454 kg 0.1135 kg 0.1135 kg
Division 1.3 2.27 kg 0.454 kg 0.454 kg
Division 1.4 22.7 kg 22.7 kg Not
applicable
Division 1.4G 56.75 kg Not Not
applicable applicable
Division 1.5 0.454 kg 0.1135 kg 0.1135 kg
Division 1.6 0.454 kg Not Not
applicable applicable
* The maximum quantities may be increased by 100 percent in areas not
accessible to the public in buildings provided with automatic sprinkler system.
** see: Explosive control act.
Table 3.2.5(b): Exempted Amounts of Hazardous Materials in Terms Health Hazard in a Control Area
Maximum Quantities in
Material Class/State
Single Storage Closed Systems Open Systems
Corrosive Not applicable 2270 kg or 1892 227kg or 1892 454kg or 379 liters
liters or 23 m3 NTP liters or 23 m3 NTP
Highly toxic Not applicable 4.54 kg or 0.57 m3 4.54 kg or 0.57 m3 1.362 kg
NTP NTP
Toxic Not applicable 227 kg or 23 m3 227 kg 56.75 kg
NTP
Table 3.2.5(c): Location and Number of Control Areas
Grade Floor Level1 Number of Fire Resistance Rating of Barriers in
Level Control Areas Hours
per Floor2 Walls Floors Floor
Supporting
Members
Higher than 9 5 1 2 2
7-9 5 2 2 2
6 12.5 2 2 2
5 12.5 2 2 2
Above
4 12.5 2 2 2
3 50 2 1 2
2 75 3 1 2
1 100 4 1 2
1 75 3 1 2
Below
2 50 2 1 2
Lower than 2 Not Allowed Not Allowed Not Allowed Not applicable
The maximum allowable quantity per control area shown in Table 3.2.5
2.14.3.5 The drains shall be designed with adequate slope and section to carry the design discharge of the sprinkler system. The material used in the drains shall be suitable for drainage of the storage materials.
2.14.3.6 Separate drainage system shall be designed for materials which react with each other producing undesirable results. They may be combined when they have been provided with approved means of discharge into the public sewer or natural stream or river.
2.14.3.7 Containment: The outflow from the drains shall be directed to a containment system or other area that provide a secondary storage for the hazardous materials and liquids and fire protection water. The containment capacity shall be capable of containing the outflow from the drains for a period of at least one hour.
2.14.3.8 The overflow from secondary containment system shall be directed to a safe location away from the building, adjoining properties and storm drain.
2.14.3.9 If the secondary containment storage area is open to rainfall it shall be designed to accommodate 24 hour rainfall or a continuous rainfall of 100 mm per day.
2.14.3.10 Smoke and Heat Vents: Smoke and heat vents shall be provided in areas or rooms containing hazardous materials exceeding the exempt amount of Table 3.2.5.
2.14.3.11 Standby Power: Standby power shall be provided in the occupancies where Class I, II or III organic peroxides are stored.
2.14.4 Location on Property
The location on property for Occupancy J shall conform to Sec 2.4.1 and Part 4.
2.14.5 Access and Exit Facilities and Emergency Escapes
Facilities for access and exit and emergency escape shall comply with the provisions set forth in Sec 1.6 of Chapter 1, Part 3, and Chapter 3, Part 4.
2.14.6 Lighting and Ventilation
2.14.6.1 All spaces and rooms customarily occupied by human beings shall be provided with natural light by means of exterior glazing with an area of not less than 10 Percent of the floor area. Such rooms and spaces shall be provided with natural ventilation by means of exterior openings with an open able area not less than 5 Percent of the total floor area or artificial light and mechanically operated ventilation system as per provisions of this Code.
2.14.6.2 Ventilation in Hazardous Locations: The rooms, spaces or areas where explosive, corrosive, combustible, flammable or highly toxic dust, mists, fumes, vapors or gases are stored or may be emitted due to the processing, use, handling or storage of materials shall be mechanically ventilated.
2.14.6.3 The mechanical ventilation of all hazardous uses shall be segregated or separated from the ventilation of other areas. The emissions generated at work areas shall be confined to the area in which they are generated and shall be removed or discharged outside the building and preventive measures against back flow of such hazardous fumes or gases inside the building shall be installed.
2.14.6.4 Ventilation of Toilets: Toilets shall be provided with fully openable exterior window of at least 0.3 m² in area or a vertical duct not less than 62500 mm² in cross-section for the first water closet, with additional 31250 mm² for each additional fixture or a mechanically operated exhaust system equipped to provide a complete change of air in every 15 minutes. Such system shall be connected to the outside air and the point of discharge shall be at least 1.0 m away from any other opening into the building.
2.14.6.5 Other requirements of water closets are specified in Sec 1.12.4 Chapter 1, Part 3.
2.14.7 Sanitation
All buildings or part of a building classified as Occupancy J shall conform to the provisions of Sec 1.16 of this Chapter and Part 8 of this Code.
2.14.8 Shaft and Exit Enclosures
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3, Part 4.
2.14.9 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.14.10 Explosion Control
Explosion control, equivalent protective devices or suppression systems or barricades shall be installed to control or vent the gases resulting from deflagrations of dusts, gases or mists in a room or area, building or other enclosures to minimize structural or mechanical damage. Walls, floors and roofs separating a use from explosion exposure shall be designed according to the provisions of Chapter 1, Part 6.
Explosion venting shall be designed in exterior walls or roof only. The venting shall be provided to prevent serious structural damage and production of lethal projectiles. The venting design shall recognize the natural characteristics and behaviors of building materials in an explosion. The vents shall be designed to relieve at a maximum internal pressure of 1.0 kPa but not less than the loads required by Chapter 2, Part 6. One or more of the following systems shall be installed to relieve explosion, where applicable:
(a) Lightweight materials in walls
(b) Light fastening devices with hatch covers
(c) Light fastening with outward opening swing doors in exterior walls
(d) Nonbearing walls with light ties
The venting devices shall discharge vertically or horizontally directly to an unoccupied yard having a width of not less than 16 m on the same plot.
The releasing devices shall be so located that the discharge end shall not be less than 3 m vertically and 6 m horizontally from window openings or exits in the same or adjoining buildings.
2.14.11 Special Hazard
Chimneys, vents and ventilation ducts shall be of noncombustible materials.
All boilers, central heating plants, electrical rooms or hot water supply boiler shall be separated from the rest of the occupancies or uses by not less than 2 hour fire resistive construction.
The devices that generate a spark, flame or glow capable of igniting gasoline shall not be installed or used within 0.5 m of the floor.
Equipment or machinery that produces or emits combustible or explosive dust or fibers shall be provided with an approved dust collecting and exhaust system.
The equipment or systems that are used to collect or process or convey combustible dust or fibers shall be installed with explosion venting or containment system.
2.15 Requirements For Occupancy K–Garage Buildings
Buildings shall be classified as Occupancy K in accordance with Sec 2.1.15.
Exception: Non-separated use mentioned in Sec 2.3.1.
2.15.1 Construction, Height and Allowable Area
The buildings or parts thereof classified as Occupancy K shall be limited to the type of construction set forth in Table 3.2.4 and Sec 2.4.4.2 and shall comply with the other provisions of Sec 1.8 Chapter 1 Part 3, Appendix F and Sec 2.4.2 to meet the requirements and limitations of height and area. With the exceptions mentioned in Sec 2.4.3, all garage floors shall be constructed with not less than 4 hour fire resistance materials.
2.15.1.1 Floors: The floors and spaces where motor vehicles are stored, repaired or operated shall be of noncombustible, liquid-tight construction.
Exception: In floors and areas where no repair works are carried out may be surfaced or waterproofed with asphaltic paving materials.
2.15.1.2 Spill Control: The floors containing hazardous repair or other works shall be recessed a minimum of 100 mm so as to prevent flow of liquids to adjoining areas.
2.15.1.3 Drainage: The buildings and areas shall be provided with approved drainage system to direct the flow of liquids to an approved location or room or area designed to provide secondary containment of the hazardous materials and fire protection water.
The drains shall be designed with adequate slope and section to carry the design discharge of the sprinkler system. The material used in the drains shall be suitable for drainage of the storage materials.
The quality of discharged liquids must attain approved level before discharging into the public sewer or natural stream or river.
2.15.1.4 Smoke and Heat Vents: Smoke and heat vents shall be provided in areas or rooms containing hazardous materials exceeding the exempt amount of Table 3.2.5.
2.15.2 Location on Property
Buildings of Occupancy K shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in Sec 2.4.1.
2.15.3 Access and Exit Facilities and Emergency Escapes
Facilities for access and exit and emergency escape shall comply with the provisions set forth in Sec 1.6 Chapter 1 Part 3, Chapter 3 Part 4 and Appendix F.
2.15.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy K shall conform to the provisions of Sec 1.16 Chapter 1 Part 3, Chapters 1 and 3, Part 8.
2.15.5 Shaft and Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3 Part 4.
2.15.6 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.16 Requirements For Occupancy L–Utility Buildings
Buildings shall be classified as Occupancy L in accordance with Sec 2.1.16.
2.16.1 Construction, Height and Allowable Area
The buildings or parts thereof classified as Occupancy L shall be limited to the type of construction set forth in Table 3.2.4 and Sec 2.4.3, and shall comply with the provisions of Sec 1.8 Chapter 1 Part 3, and Sec 2.4.2 to meet the requirements and limitations of height and area.
2.16.2 Location on Property
Buildings of Occupancy L shall comply with the requirements for location on property and fire resistive exterior walls and openings as specified in Sec 2.4.1.
2.16.3 Access and Exit Facilities and Egress System
Facilities for access and exit and egress system shall comply with the provisions set forth in Sec 1.6 Chapter 1 Part 3 and Chapter 3 Part 4.
2.16.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy L shall conform to the provisions of Sec 1.16 Chapter 1 Part 3, Chapters 1 and 3, Part 8.
2.16.5 Shaft and Enclosure
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with Chapter 3 Part 4.
2.16.6 Fire Detector, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
2.16.7 Special Hazard
2.16.7.1 Since the nature of use of this occupancy involves hazard, special consideration for maintenance and operational safety must be ensured. Depending upon the degree of hazard involved, this occupancy type may have separate and isolated structure.
2.16.7.2 Chimneys and vents and ventilation ducts shall be of noncombustible materials.
All boilers, central heating plants, electrical rooms or hot water supply boiler shall be separated from the rest of the occupancies or uses by not less than 2 hour fire resistive construction.
The devices that generate a spark, flame or glow capable of igniting gasoline shall not be installed or used within 0.5 m of the floor.
Equipment or machinery that produces or emits combustible or explosive dust or fibers shall be provided with an approved dust collecting and exhaust system.
The equipment or system that is used to collect or process or convey combustible dust or fibers shall be installed with explosion venting or containment system.
2.17 Requirements For Occupancy M–Miscellaneous Buildings
Buildings shall be classified as Occupancy M in accordance with Sec 2.1.17.
2.17.1 General
The buildings or parts thereof classified as Occupancy M shall be limited to the type of construction set forth in Table 3.2.4 and shall comply with the requirements of Sections 1.8 and 2.4.2 to meet the requirements of height and area limitations.
Any building or portion thereof that exceeds the limitations provided in this Chapter shall be classified in the occupancy group other than M that it most nearly resembles.
2.17.2 Location on Property
The location on property for Occupancy M shall conform to Sec 2.4.1.
2.17.3 Access and Exit Facilities and Emergency Escapes
Access and exit facilities for Occupancy M shall comply with the specification set in Sec 1.6 Chapter 3, Part 4.
2.17.4 Lighting, Ventilation and Sanitation
All buildings or part of a building classified as Occupancy M shall conform to the provisions of Sec 1.16 Chapters 1 and 3, Part 8.
2.17.5 Shaft and Exit Enclosures
Elevator shafts, vent shafts and other vertical openings shall be enclosed conforming to the provisions of Tables 3.3.1 (a) and (b). Exit requirements shall comply with the requirements of Chapter 3, Part 4.
2.17.6 Fire Detection, Alarm, Evacuation and Extinguishment System
All buildings shall conform to regulations set forth in Part 4 of this Code.
Table 3.2.6: AZ List of Occupancy Classification
Use or Occupancy Brief Description Occupancy
Class/Sub-class
A
Adhesives Excluding manufacture of basic G or J depending on
manufacture components nature of materials
involved
Advertising displays G
manufacture
Agricultural machinery Including repairs G
manufacture
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Agriculture Without nuisance or sales limitation H
Agricultural Small farm house, (limited to storage F
quantity)
Large farm house, storage quantity H or J
unlimited
Small grain processing unit, (limited G
to quantity)
Large grain processing unit, quantity G or J
unlimited
Aircraft manufacture G or J depending on
(including parts) nature of materials
and process
involved
Airports MIXED USE
(depending on
detail requirement)
Amusement parks, (See children's amusement parks) -
children's
Amusement park I
activities
Animal Animal hospitals F
Animal pound (for stray and lost animal) H
Animal crematorium G
Killing establishments, for retail sales F
Slaughtering, processing and packing G
Antique stores F
Apartments (see residential)
in walkup buildings A
In high rises A
in housing complex A
Apartment hotels A5
Apparel (See clothing)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Appliances Electrical appliance Manufacturing G
Television, radio, phonograph or F
household appliance stores, (Limited
as to floor areas)
Television, radio, phonograph or F
household appliance stores,
(Unlimited)
Household appliance repair shops F
Arenas, auditoriums, See Assembly (Limited as to capacity) I
or stadiums See Assembly (Unlimited) I
Art Galleries Commercial (sales included) F
With exhibition open to public I
viewing for limited period (sales
included)
Art goods G
manufacture, religious
temple or church,
excluding foundry
operations
Art metal craft shops F
Art needle work Six occupants or less Non-separated use
to A1 and A2
Occupancy
More than six occupants G
(see industrial)
Artist's supply stores F
Asphalt or asphalt Manufacture J
products
Assembly Large assembly with fixed seats I1
Small assembly with fixed seats I2
Large assembly without fixed seats I3
Small assembly without fixed seats I4
For sport facilities I5
Athletic equipment G
manufacture
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Athletic goods stores F
Auctions rooms, open I
to public
Auditoriums See assembly I
Automatic laundries G
Automobiles Dead Storage H
Driving Schools E
Glass or mirror shops F
Washing K
Manufacture, including parts, or J
engine rebuilding
Rental establishments K
Repairs, body K
Repairs, without body repairs K
Sales open or enclosed K
Seat cover or convertible top F
establishments, selling or installation
Showrooms, no repair services K
Supply stores, no repair services F
Tire sales establishments, limited to F
quantity
Tire sales establishments, unlimited J
Wrecking establishments G
Automotive service Limited as to total area K
stations Unlimited... K
Awnings Custom shops H
Manufacture, with no limitation on G
production or on floor area
Use or Occupancy Brief Description Occupancy
Class/Sub-class
B
Bakeries Home-made, six or less occupants non-separated use
(baking included) to main occupancy
Large scale, more than six occupants G
(baking included)
Sales only F
Banks, Including drive-in banks E
Banquet halls I
Bar, alcoholic I
Barber shops F
Barns H
Barracks (See residential) A4
Baths, steam I
Beaches, commercial Not applicable
Beauty parlors F
Beverages Bottling works G
Manufacture, Alcoholic J
Non-alcoholic G
Bicycle Manufacture G
Rental or repair shops F
Sales F
Billiard parlors I
Blacksmith shops small scale (limited to six occupants), F
repair or making
Unlimited G
Blueprinting drawing printing G
establishments
Boarding houses (See residential) A
Borstals C
Boatels A
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Boats or ships Bailer works at port or dock J
Breaking J
Building or repair, for boats less than J
200 ft. in length
Building or repair, for boats 200 ft. or J
more in length
Docks, for small pleasure boats Not applicable
Fuel sales, open or enclosed
Un- restricted as to location F
Restricted as to location J
Rentals opened or enclosed F
Sales opened or enclosed F
Showrooms, with no repair services.. F
Storage, repair, or painting, including G
the incidental sales of boats, boat
parts, or accessories, with restrictions
on boat size and setbacks
Bone distillation G or J depending on
process or material
used
Botanical garden M
structures
Book Binding (see printing)
Hand binding or tooling G
Store F
Bottling works, for all G
beverages
Bowling alleys Limited as to number of lanes I
Unlimited I
Breweries G
Brick manufacture J
Brush or broom G
manufacture
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Building materials sales open or enclosed, limited as to lot area F
Yards, for sales, storage, or handling, F
open or enclosed, unlimited as to lot
area except in the case of lumber
yards
Bungalow (See residential) A
Business Offices B1
Research and testing laboratories B2
Essential services B3
Bus stations With less than 10 berths K (bus area) and I
(passenger area)
With 10 or more berths MIXED (as per
detail requirement
including K and I)
Bus stops see Bus stations
Business machines Manufacture G
Small, repair shops F
Stores, sales, or rentals.. F
Business schools or B
colleges
Buying house storage restricted to sample E
(garments)
C
Café Six persons or less Non-separated use
to main Occupancy
More than six persons (see F
mercantile)
Cafeteria With commercial kitchen MIXED (G and I)
Without commercial kitchen I
Camera and photo Manufacture G
equipment
Camps, overnight or MIXED (A, I and
outdoor day other depending on
the nature of use)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Candy stores F
Canneries, including J
food products
Canteen With or without cooking facility I
Canvas or canvas G2
products manufacture
Cargo terminal containing low fire-risk materials H
containing moderate fire-risk H
materials
containing high fire-risk materials J
Carnivals, temporary I5
Carpentry shops G
Carpet Cleaning establishments... J or G depending on
the nature of
materials involved
Manufacture G
Carpet, rug, linoleum or other floor F
covering stores Unlimited
Carport Roofed wall less shelter for car K or H depending
on the nature of use
Automated mechanical parking K or H depending
on the nature of use
Catering establishments Commercial kitchen G
Office E
Storage, open or enclosed H
Storage for temporary structure's J
fabrication material
Cattle shed, stables H
Cement manufacture G2
Cemeteries H
Ceramic products Manufacture G or J based on
nature of material
used
Display and sales F
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Chamber, doctors' or 50 or less occupants E
dentists', above 50 occupants D
(outpatient only)
Charcoal manufacture G
Chemicals Compounding or packaging G or J depending on
nature of materials
involved
Manufacture G or J depending on
nature of materials
involved
Child care home C
Child care institution C
Children's amusement Small I
parks Medium size I
Large size I
Unlimited as to size I
Churches, with fixed (See Assembly with fixed seats) I
pews
Cigar stores F
Cinema hall (See Assembly with fixed seats) I
Cineplex (See Assembly with fixed seats) I
Circuses, temporary (See Assembly) I
Class room School, college or university B
Clay manufacture G
Clay pits Not applicable
Cleaning or cleaning (See dry cleaning)....
and dyeing
establishments
Clinics With inpatient D
Only outpatient, limited to quantity
(see chambers, doctors' or dentists')
Only outpatient, unlimited D
With diagnostic facilities (see
diagnostic facilities)
Government community clinic E
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Coaching centre (See educational facilities) B
Cold storage H
Composite textile mill G or J depending on
nature of material
and process used
Cottage industries Small, fifty or less workers G1
(see industrial facilities)
Large, more than fifty workers… G1 or G2 depending
(see industrial facilities) on the nature of
material and
process used
Clock Manufacture G
Stores or repair shops F
Clothing Accessory stores F
Custom manufacture or altering for F
retail
Manufacture G or J depending on
nature of the
material involved
Rental establishments F
Store, Limited as to floor area F
Store, Unlimited F
Clubs Non-commercial Including accommodation MIXED (A and I)
(members only) Night-club I
All types except those with outdoor
swimming pools
Clubs, for public use Excluding accommodation I
Including accommodation MIXED (I and A or
other occupancies
depending upon
nature of use)
Clubs, Sporting MIXED (I and A or
other occupancies
depending upon
nature of use)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Coal Products manufacture J
Sales, open or enclosed, Limited as to J
plot area
Unlimited (see coal storage) J
Storage, open or enclosed J
Coin stores F
Condensed and Manufacture J
powdered milk
Coke products Manufacture J
Colleges or universities See educational facilities B
Colony, government MIXED (A and other
or non-government occupancies
depending on use)
Commercial building (see business and/or mercantile)
Commercial parking (See garages) K
garages or plots
Community centers With commercial kitchen MIXED (G and I)
Without commercial kitchen I
Concrete batching G
Concrete products G
manufacture
Construction Manufacture, including repairs G
machinery
Container terminal H or J (According
to the hazard
classification
regulation of the
port authority)
Contractors' Electrical, glazing, heating, painting, F
establishments paper hanging, plumbing, roofing, or
ventilating
Contractors' yards Not applicable
Convalescent homes (See nursing homes)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Convents MIXED (A, B and
I)
Cork products Manufacture G
Cosmetics or toiletries Manufacture.. J
Costume rental F
establishments
Cottage, tourist (See residential) A5
Cotton ginning or J
cotton wadding or
liner manufacture
Court houses I
Crate manufacture G or J depending on
the material and
process involved
Crematoriums Animals. J
Human. MIXED (J and I)
Cultural center Mixed (depending on
detail requirement)
D
Dance halls Public I
Dance School A
Dance studios (see studios)
Day camps, outdoor I
Day care Centre With six or less children Non-separated use
to Residential
Occupancy
More than six children C
Decorator's Office E
establishment Storage, separated H or J depending
upon the material
involved
Defense Buildings, for Not Applicable
critical national
defense capabilities
Delicatessen stores (See food stores) F
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Dental Instruments manufacture G
Laboratories (See laboratories,
medical or dental)
Department stores not exceeding 300 m² F1
more than 300 m² F2
Diagnostic facilities, Outpatients only D
medical
Diaper supply H
establishments
Disinfectants G
manufacture
Dispensaries Attached to hospital L
See drug store F
Dormitories Universities or colleges (above 12 A
grade)
Schools (12 grade or below) C
Drafting instruments Manufacture G
Dressmaking shops, F
custom
Drinking places, non- (See cafe)
alcoholic
Drive-in theaters I
Drug stores F
Dry cleaning or Limited as to floor area, solvents and G or J depending on
clothes pressing machine capacity the process and
establishments quantity of material
used
Dry cleaning or Without restrictions G or J depending on
cleaning and dyeing the process and
establishments quantity of material
used
Dry Cleaning, using G
other than flammable
liquids in cleaning or
dyeing operations
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Dry goods stores Limited as to floor area F
Unlimited F
Dumps Not applicable
Dyeing facilities/ J
industries
E
Eating or drinking With restrictions on entertainment I
places (see Assembly)
Without restrictions on entertainment I
or dancing but limited to location in
hotels (see Assembly)
Without restrictions (See assembly) I
Eco park structures MIXED (depending
upon the nature of
use)
Educational facilities Up to higher secondary level B1
Training and above-higher-secondary B2
education
Pre-school facilities B3
Electric Power or steam generating plants G
Substations, Public transit or railroad G
Substations, as part of public G
distribution system
Substations, low to medium voltage L
step down, at consumers' end
Electrical Appliance Manufacture G or J depending
upon the process or
material to be used
Stores (including television, radio, F
phonograph or household appliances)
Contractors (See contractors'
establishments)
Equipment assembly, not including G
electrical machinery
Supplies, manufacturing G
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Electronics J
manufacturing
Electrolysis works J
Electrotyping or Limited to quantity F
stereotyping Unlimited (see printing) G
Embassy or High- MIXED (depending
commission or on detail
Consulate requirement)
Engine including rebuilding or reconditioning J
Engraving or photo- Limited to quantity F
engraving Unlimited (see printing) G
Excelsior manufacture J
Exhibition hall See assembly I
Exterminators See pest control F
F
Fabric stores F
Factory G or J (depending
on process and
material involved)
Fairs, temporary MIXED (I and F)
Feathers Bulk processing, washing, curing, or J
dyeing
Products manufacture, except J
washing , curing or dyeing
Felt Bulk processing, washing, curing, or G
dyeing
Products manufacture, except G
washing, curing or dyeing
Fertilizer manufacture J
Field hospital, With provision for ambulance access E
temporary (to parks and play grounds)
Filling stations (See refueling station) B
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Film, photographic Manufacture G
Fire Stations E
Fish products, packing G
or processing
Fishing tackle or F
equipment rental or
sales
Flats (see residential) A
In walkup buildings A
In high rises A
in housing complex MIXED (A and
other occupancies)
Florist shops F
Food Products processing, except meat G
slaughtering or preparation of fish for
packing
Stores, including supermarkets, F
grocery stores, meat markets, or
delicatessen stores
Foundries Ferrous or non-ferrous G or J (depending
on process and
material involved)
Fraternity houses (See colleges or universities)
Freight depot See storage and hazardous buildings H and/or J
Frozen food lockers J
Fuel briquettes G
manufacture
Fuel sales, open or Limited up to exempted quantity F
enclosed Unlimited, See coal storage or J
petroleum storage
Funeral I
establishments
Fungicides G
manufacture
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Fur Goods manufacture, not including G
tanning or dyeing
Tanning, curing, finishing, or dyeing J
Furniture Custom shop, floor area of 100 m² or F
less
Custom shop, floor area over 100 m² G
Manufacture J or G depending
upon nature of
materials involved
Store, Limited as to floor area F
Store, Unlimited F
Furriers shops, custom F
Freight depot H or J depending on
the nature of
material involved
G
Garages Parking garage K1
Private garage K2
Repair garage and show-rooms K3
Garbage incineration G
or reduction
Garden shed M
Garden supply stores F
Gardens, truck (See agriculture)
Garments industries G
Gas, fuel Manufacture J
Distribution regulatory system (DRS) G
Gas manufacture for Medical purpose J
Hot-works (welding) J
Gasoline service (See refueling stations)
stations
Gelatin manufacture G
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Generating plants, G
electric or steam
Gift stores F
Glass Cutting shops F
Manufacture G
Products manufacture from G
previously manufactured glass
Glazing contractor's (See contractors' establishments) F
establishment
Glue manufacture G
Godown See storage buildings
Golf Courses Not applicable
Courses, miniature I
Driving ranges I
Grain Milling or processing J
Storage J
Graphite or graphite Manufacture G
products
Gravel pits Not applicable
Grocery stores F
Group homes Segregation of occupants on the basis C
of age group and disabilities
(See institutional)
Gypsum production J
industry
Gymnasiums Less than 300 occupants I
300 or more occupants I
Commercial without spectator gallery
(max 50 occupants)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
H
Hair Bulk processing, washing, curing, or G
dyeing
Products manufacture (except G
washing, curing, or dyeing)
Products manufacture, custom G
Hall, for incidental (See assembly) I
show (picture, drama,
theatre)
Hardware Manufacture G
Stores F
Bodies manufacture G
Repair shops F
Hazardous buildings Explosion-hazard building J1
Chemical-hazard building J2
Biological-hazard building J3
Nuclear-hazard building J4
Health centers With inpatient D
Without inpatient (not more than 50 E
occupants)
Government operated health centers E or D (depending
upon the facilities)
Healthcare facilities Normal medical facilities D1
Emergency medical facilities D2
Health club I
Heating contractor's (See contractors' establishments)
establishment
Heat, ventilation and Without repair facilities F
air-conditioning
equipment showrooms
Heliports G
Hemp products G
manufacture
Use or Occupancy Brief Description Occupancy
Class/Sub-class
High Commission See embassy
Home for care of the old and infirm (see institution)
of mentally disabled (see institution)
Home office Not more than 6 occupants Non-separated use
of Occupancy A
Hosiery manufacture G
Hospital, except As part of disaster preparedness D
animal hospital program
Casualty unit D
Emergency unit D
Non-profit or voluntary, and related D
facilities
Proprietary and related facilities D
Hostels For adults A
For children C
Hotels Transient A
Apartment hotel A
Starred hotel MIXED
Household Appliance repair shops F
Appliance stores (See appliances F
television, radio, phonograph, or
household appliance stores)
Housing, complex MIXED (see appendix)
multi-storied
Housing, cluster MIXED (see appendix)
Housing, low-income MIXED (see appendix)
Housing, minimum MIXED (see appendix)
standard
Housing, rehabilitation MIXED (see appendix)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
I
Ice cream stores F
Ice Manufacture, dry or natural G or J (depending
on the process or
material used)
Sales, open or enclosed Limited as to F
lot area
Unlimited F
Incineration or G
reduction of garbage,
offal, or dead animals
Indoor facility, for I
amusement park
Industrial buildings Low-hazard Industries G1
Moderate-hazard Industries G2
Infirmaries C
Ink or inked ribbon G or J depending on
manufacture nature of materials
involved
Inns See residential A
Insecticides G or J depending on
manufacture nature of materials
involved
Institution For care of children C1
Custodial, for physically capable C2
adults
Custodial, for physically incapable C3
adults
Penal or mental, for children C4
Penal or mental, for adults C5
Institutions, With sleeping accommodations A
philanthropic or non- Without sleeping accommodations
profit
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Interior decorating Limited as to floor area for F
establishments processing, servicing, or repairs
Unlimited, see furniture, textiles or F
upholstering
Irradiation plant J
J
Jail see prisons
Jewelry Manufacture G
Costume G
From precious metals G
Shops F
Junk Yards Not applicable
Jute products G or J (depending on
manufacture quantity or process)
Juvenile correctional For children (see assembly)
center
K
Kennels H
Kindergarten See educational facilities B
Knitwear industries G2
L
Laboratories Medical or dental, for research or E
testing, with limitations on
objectionable effects
Research, experimental, or testing, (G or J) and H
unlimited depending on
process or material
used in compliance
with safety standards
Radiological laboratory, see
radiological facilities
Pathological laboratory G (in compliance
with safety standards)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Microbiological laboratory, for G or J depending on
diagnostic facility process or material
used in compliance
with safety standards
Microbiological laboratory, for G or J depending on
research process or material
used in compliance
with safety standards
Microbiological laboratory, for G or J depending on
academic facility process or material
used in compliance
with safety standards
Lampblack G
manufacture
Laundries, with no G
limitations on type of
operation
Laundry G
establishments, hand
or automatic self-
service
Lavatory, public see public toilet
Leather Tanning, curing, finishing or dyeing J
Goods stores F
Products manufacture G
Libraries Reading area (see assembly) I
Stack area (see storage) H
Reading and stack area combined MIXED (I and H)
Lillah boarding For children (see institutional) C
For adults (see residential) A
Linen supply
establishments
Linoleum Manufacture J
Stores (See carpet stores)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Liquor stores, package F
Livestock Storage, more than six castles H
Slaughtering or preparation for G
packing
Loan offices E
Locksmith shops F
Lodging See residential A
Luggage Manufacture G
Stores F
Lumber Processing or woodwork, bulk G
Sales, Limited as to lot area G
Sales, Unlimited G
Yard, Limited as to lot area G
Yard, Unlimited G
M
Machine Shops including tool, die or pattern G
making
Tools manufacture G
Machinery Manufacture or repair, Heavy G or J depending on
material and process
Miscellaneous or electrical equipment G or J depending on
material and process
Rental or sales establishments F
Repair shops F
Machines, business (See business machines)
Madrasa (See institution)
Manure storage H
Markets Retail, including meat (See mercantile) F
Wholesale, produce or meat F
(See mercantile)
Masseurs F
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Matches manufacture J
Mattress manufacture, J
rebuilding or
renovating
Meat Markets, Retail (See food stores) F
Markets, Wholesale F
Slaughtering or preparation for packing G
Medical Appliances, Custom manufacture G
Appliances, Manufacture G
Stores F
Instruments, manufacture G
Laboratories (See laboratories, medical)
Offices or group medical centers, E
Limited as to location within building
Offices or group medical centers, E
Unlimited
Meeting halls See Assembly I
Mess houses (See residential)
Metal Fabrication J
industry
Metal Assembly J
industry
Metals manufacture Alloys or foil, miscellaneous G
Casting or foundry products, heavy G
Finishing, plating, grinding, G
sharpening, polishing, cleaning, rust
proofing, heat treatment, or similar
processes
Ores reduction or refining G
Products treatment or processing G
Reduction, refining, smelting, or G
alloying
Stamping or extrusion G
Treatment or processing G
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Mental institution Without detention facilities D
Mental hospitals (See institution) C
Mercantile Small shops and markets F1
Large shops and markets F2
Refueling station F3
Mill (See industrial and/ or hazardous G or J (depending on
buildings) material or process)
Mill works, and J
woodworking, wood
distillation and particle
boards manufacturing
Millinery shops F
Mining machinery Including repairs G
manufacture
Mirror silvering shops G
Miscellaneous Special structures M1
buildings Fences, tanks and towers M2
Monasteries MIXED
Monument Sales establishments, with incidental F
processing to order
Works, with no limitations on G
processing
Mosque (See assembly) I
Motels (See residential) A
Motion picture MIXED (G and other
production and Occupancies as
filming facilities required)
Motorcycles Manufacture G
Repairs, body G
Repairs, except body repairs G
Sales open or enclosed F
Showrooms, with no repair services K
(See garage)
Motor freight stations See truck terminals
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Motor vehicles Dead storage H
Moving or storage offices, Limited as K
to storage
Unlimited K
Movie theatre See assembly I
Museums See assembly I
Music stores F
Music studios See studios
Musical instruments Manufacture, Excluding pianos and G1
organs
Including pianos and organs… G2
Repair shops… G1
N
Newspaper publishing MIXED (G and E)
Printing G
Office E
Newsstands, open or F
closed
Novelty products G
manufacture
Novitiates… See institution A
Nuclear medicine see radiological facilities
facilities
Nuclear plant J
Nurseries See agriculture
Nursing homes Philanthropic or non-profit C or D depending on
the type of occupants
and nature of use
Private C or D depending on
the type of occupants
and nature of use
Nursery schools See pre-school B
Use or Occupancy Brief Description Occupancy
Class/Sub-class
O
Oakum products G
manufacture
Office equipment or F
machinery repair
shops
Office or business sales or rental F
machine stores
Offices General E
Business, professional or Governmental E
(see business occupancy)
Dental, medical, or osteopathic E
(See medical offices)
Wholesale, with storage restricted to E
samples (see business occupancy)
Offices, small Architect's/engineer's/ consultant's Non-separated use
(Limited to six occupants) of Occupancy A
Architect's/engineer's/consultant's E
( more than six occupants)
Oil cloth manufacture J
Oil sales, open and Limited as to lot area F
enclosed Unlimited (See petroleum or J
petroleum products storage)
Old home See institution C
Optical Equipment manufacture G
Goods manufacture G
Orphanage See institution C
Optician or optometrist F
establishments
Orthopedic Appliances, Custom manufacture G
Manufacture G
Stores F
Instruments, manufacture G
Osteopathic offices (See medical offices)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
P
Packing or crating G2
establishments
Packing materials G2
manufacture
Pagoda See Prayer hall
Paint Manufacture J
Stores, limited to quantity F
Stores, unlimited H
Painting contractors (See contractors' establishments)
Paper Mills (See wood pulp or fiber) G
Products manufacture G
Stock companies H
Paper-hanging (See contractors' establishments)
contractors
Parish houses A
Parks, public or With provision for emergency vehicle Not applicable
private access as part of disaster preparedness
program
Park structures M
Parking garages, public See garage, parking K
Parking lots, public See garage, parking K
Passenger stations and Small, passenger station MIXED (depending
terminals on nature of use)
Large, passenger station or terminal MIXED (depending
on nature of use)
Passenger and freight terminal MIXED (depending
on nature of use)
Peat storage H
Perfumed or perfumed compounding only, not including J
soaps soap manufacture
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Pest control Exempted quantity only F
Pet shops F
Petrol pump See refueling station F
Petroleum or Refining J
petroleum products Storage and handling J
Pharmaceutical G or J depending on
products manufacture nature of materials
used
Philanthropic, religious MIXED (depending
or non-profit activities on nature of use)
Phonograph Repair shops F
Stores (See appliances) F
Photocopying and Binding limited in quantity F
book binding
Photographic Developing or printing establishment, F
Retail
Developing or printing establishment, H
Wholesale, Limited as to floor area
Developing or printing establishment, H
Wholesale, Unlimited
Equipment, Manufacture (film) J
Equipment, Manufacture (except film) G
Stores F
Studios F
Supply stores (limited to exempted F
quantity)
Photostatting F
establishments
Physical culture I
establishments
Picture framing stores F
Plants, Industrial G
Plants, Refrigeration G
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Plastics Products, manufacture J
Raw, manufacture J
Plate making (See printing)
Playgrounds With provision for emergency vehicle I
access as part of disaster preparedness
program
Plots, parking (See parking lots, public)
Plumbing Contractors' establishments F
Equipment manufacturer (See tools or
hardware manufacturing)
Showrooms, without repair facilities F
Police Stations E
Pool halls I
Porcelain products G
manufacture
Post offices E
Poultry Storage (live) H
Killing establishments, for retail sales G
on the same zoning lot only
Packing or slaughtering G
Power plant G
Power stations As part of national grid power E
distribution system
At consumer's end L
Prayer hall See assembly I
Precision instruments Optical equipment, clocks, or similar G
manufacture products
Medical, dental, or drafting G
instruments, optical goods, or similar
products
Pre-school facilities See educational
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Press club, for journalist I
Press, printing See printing
Primary schools See educational
Printing Custom G
Limited as to floor area G
Unlimited G
Printing, publishing, J
dyeing and printing
industries
Prisons See jail C
Produce or meat F
markets, wholesale
Psychiatric sanatoria With detention facilities
(see institution)
Public auction rooms MIXED (F and/or I)
Public transit yards Not applicable
Publishing With printing G
Without printing E
Pumping stations Water or sewage (for city supply G
system)
Dedicated to consumer U
Q
Quarter, Staff Government or non-government A or Mixed (See
appendix)
R
Racetracks I
Radio Appliance repair shops F
Stores F
Studios, with less than six occupants Non-separated use
to main Occupancy
Studios, without transmission tower E
Studios, with transmission tower
(see radio station)
Towers, non-accessory M
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Radio station Mixed (depending
on the type of use)
Radiological facilities, In compliance with the standard of D
medical atomic energy commission
Radioactive waste J
disposal services
Railroad Equipment manufacture, including G or J depending on
railroad cars or locomotives the material and
hot-work used
Passenger stations I
Right-of-way Not applicable
Substations
Small or medium size G
Large G
Railroads, including rights-of-way, Not applicable
freight terminals, yards or
appurtenances, or facilities or services
used or required in railroad operations,
but not including passenger stations
Rail station Mixed (depending
on the type of use)
Record stores F
Recreation centers, I
non-commercial
Recreation piers See assembly I
Recreational vehicles J
manufacturing
Rectories A
Reducing salons I
Reformatories See institutional facilities
Refreshments stand, I
drive-in
Refrigerating plants G
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Refueling station Petroleum product storage within E
exempted quantity
Refuse incinerators J
Religious or church G
art goods manufacture
Research dealing with non-hazard or low E
establishment hazard materials only
Residences Single-family detached A
One-family semi-detached or two- A
family detached or semi-detached
Boarding or rooming houses A
Rest homes (See nursing homes)
Residential Single family dwelling A1
Two family dwelling A2
Flats or apartments A3
Mess, boarding house, dormitories A4
and hostels
Hotels and lodging houses A5
Rest Houses
Restaurant Dining area I
Performing area, limited I
Kitchen and storage L
Reviewing stand I
Riding academies, E and H
open or enclosed
Roofing contractors' F
establishments
Rooming houses See residential A
Rubber Processing or manufacture, natural or J
synthetic
Products manufacture (excluding all J
natural or synthetic rubber processing)
Rug stores (See carpet stores)
Use or Occupancy Brief Description Occupancy
Class/Sub-class
S
Sail-making F
establishments
Salvage storage H
Sand pits Not applicable
Saloon, hair dressing F
Sanatoriums With detention facilities (see institution) C
Without detention facilities D
Sawmills G
Scenery construction G
School (see Dormitories, for children C
educational) Nursery, kindergarten, elementary or B
secondary schools
Trade or other schools for adults, B
limited as to objectionable effects
Trade schools for adults, unlimited B
For physically challenged, without B
accommodation
For mentally challenged, without B
accommodation
Scrap metal, paper and H
rag storage
Secondary school See educational B
Seed stores F
Seminar halls For 50 or more occupants, See assembly I
Seminaries B
Settlement houses (see housing) MIXED (A and other
Occupancy depending
on the nature of use
Sewage Disposal plants G
Pumping stations G
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Sewing machine F
stores, selling
household machines
only
Ship chandlers, candle F
shops
Ship or boat building For ships 200 ft. in length or over G
or repair yards
Shipping, waterfront Not applicable
Shoes Manufacture G or J depending on
the process and
material involved
Repair shops F
Stores F
Shops see definition F or G (depending
on the process and
material involved)
Shop-house mixed occupancy
(A and F) or (A, F
and G)
Sign painting shops Limited as to floor area G
Unlimited G
Silk processing and J
spinning
Silo, for storage of H
grain
Silver plating shops, G
custom
Silverware G
manufacture, plate or
sterling
Sisal products J
manufacture
Skating rinks, roller Indoor I
Outdoor I
Slag piles Not applicable
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Slaughtering of G
animals or poultry
Soap or detergents Manufacture, including fat rendering J
Packaging only G
Soldering shops G
Solvent extracting J
Sorority houses (See hostel) A
Sports centre I
Sporting equipment G
manufacture.
Sporting goods stores F
Stable for horses H
Stadiums Indoor or outdoor, with access for I
emergency vehicle as part of disaster
preparedness program
Staff quarter see quarter, staff
Stamp stores F
Station Rail, bus, air and water way MIXED (I and other
Occupancy
depending on the
nature of use
Stationary stores F
Statuary, mannequins, G
figurines, religious or
church art goods
manufacture,
excluding foundry
operations
Steel products Miscellaneous fabrication or G
assembly (without hot-work)
Structural products manufacture J
Stock yards or G
slaughtering of
animals or poultry
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Stone processing or G
stone products
Storage buildings Low-fire-risk storage H1
Moderate-fire-risk storage H2
Storage facilities Wholesale (see storage buildings) H
Offices, limited to quantity Non-separated use
For cotton/jute/ paper/textile J
Stores See definition F
Students' halls of For children C
residence For adults A
Studios Music, dancing, or theatrical I
Radio (see radio studio)
Television, with spectator MIXED (I, E or G)
Television, without spectator MIXED (depending
on nature of material
and process
involved)
Sugar Production and Refining J
Super market See mercantile F
Swimming pools Commercial I
Non-Commercial (See clubs) I
T
Table tennis halls See assembly I
Tailor shops, custom F
Tanning (See leather J
or fur)
Tapestries manufacture G
Tar products G
manufacture
Taxidermist shops F
Telegraph offices E
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Telephone exchanges E
or other communications
equipment structures
Television Repair shops F
Stores (See appliances) F
Studios (see television studios)
Towers, non-accessory M
Television station See business MIXED (E3 with
other Occupancies
according to detail
requirement)
Temple See prayer hall
Tennis courts, indoor I
Terminal facilities at G
river crossings for
access to electric, gas,
or steam lines
Test laboratory involving low hazard material E
Textiles Bleaching (see industrial) G
Products manufacture (see industrial) G
Spinning, weaving, manufacturing, G
dyeing, printing, knit goods, yarn,
thread, or cordage (see industrial)
Textile industries and including canvas, cotton cloth, J
jute mills bagging burlap, carpet and rags
(see industrial)
Theater See assembly I
Theaters, drive-in (See studios)
Theatrical studios without spectator G
Tile Manufacture G
Tire sales Including installation services, F
establishments Limited to quantity
Including installation services, J
unlimited quantity
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Tobacco Curing or manufacture, or tobacco J
products manufacture
Stores (retail) F
Toilet, public L
Toiletries manufacture G or J depending on
the material and
process involved
Tool or hardware See industries G
manufacture
Topsoil storage See storage H
Tourist cabins See residential A
Towel supply F
establishments
Toys Manufacture G
Stores F
Trade or other schools Limited as to objectionable effects B
for adults (see educational)
Unlimited (see educational) B
Trade expositions Limited as to rated capacity I
Unlimited I
Trailer, truck, bus Manufacture, including parts G or J depending on
the material and
process involved
Repairs, body G or J depending on
the material and
process involved
Sales open or enclosed F
Showrooms, with no repair services F
Training center lecture based, limited to quantity E1 or B2
(see educational facilities)
vocational or demonstrative B2
(see educational facilities)
Transit substations Small or medium size G
Large G
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Transport terminal Small or medium size MIXED depending
on nature of use
Large MIXED depending
on nature of use
Travel agency (see business) E
Travel bureaus (see business) E
Truck Manufacture (including parts) G or J depending on
or engine rebuilding the material and
process involved
Repairs, body G
Repairs, except body repairs G
Sales open or enclosed F
Showrooms, with no repair services F
Trucking terminals or motor freight K1
stations, Limited as to lot area
Trucking terminals or motor freight K1
stations, Unlimited
Tutorial homes More than six occupants B
(see educational)
Turpentine J
manufacture
Typewriter stores F
Typewriter or other F
small business machine
repair shops
Typography (See printing)
U
Umbrellas Manufacture G
Repair shops F
University See educational facilities B2
Upholstery Manufacturing J
Bulk, including shops not dealing J
directly with consumers
Shops dealing directly with F
consumers, retail
Utility L
Use or Occupancy Brief Description Occupancy
Class/Sub-class
V
Variety stores Limited as to floor area F
Unlimited F
Varnish manufacture J
Vehicles Dead storage of motor H
Manufacture, children's G
Storage, commercial or public utility, K
open or enclosed
Venetian blind, Custom shops, limited as to floor area F
window shade, or Manufacture, with no limitation on J or G depending
awning production or on floor area upon nature of
materials involved
Ventilating (See contractors' establishments) F
contractors
Ventilating equipment Without repair facilities F
showrooms
Video games shop F
Vihara, Buddhist with occasional or regular assembly mixed use
W
Wallpaper stores Limited to quantity H
Warehouses H or J (depending
on the nature of
material stored)
Watch or clock stores F
or repair shops
Watch making G
Waterfront shipping Not applicable
Water pumping stations At distributor's end G
At consumer's end L
Water tank tower M
Wax products G
manufacture
Use or Occupancy Brief Description Occupancy
Class/Sub-class
Weaving, hand Up to six hand-weaving machines Non- separated use
to main Occupancy
More than six hand-weaving G
machines
Wedding chapels See assembly I
Welding shops Arc welding only G
Gas welding within exempted G or J depending
quantity upon the quantity of
material and process
Welfare centers
Wholesale H or J depending
establishments upon the nature of
material
Wholesale offices or E
showrooms, with
storage restricted to
samples
Window manufacture G
Window shades Custom shops, limited as to floor area F
Manufacture, without limitation on G
production or on floor area
Wood Bulk processing or woodworking G
Distillation G
Products manufacture G
Pulp or fibre, reduction or processing, G
including paper mill operations
Sales, open or enclosed, Limited as to F
lot area
Unlimited (See lumber yards) F
Woodworking shops, custom J or G depending
upon nature of
materials involved
Wool scouring or pulling G
Workshops With hot-works J
Without hot-works G
Use or Occupancy Brief Description Occupancy
Class/Sub-class
X
X-ray facilities See radiological facilities
Y
Yard Not applicable
Yard, ship See ship or boat building or repair yards
Yarn, manufacturing G or J depending on
the quantity (see
Table 3.2.5)
Z
Zoo structures M
** The occupancy classification for any project, not included in this list, shall be determined through the following process:
i. The functional requirements of the unidentified occupancy shall be compared with the Occupancy use type, classification, sub-classification categories and descriptions to match with the given occupancies to find the most similar Occupancy,
ii. If process (i) fails to determine the Occupancy, the project will be referred to the Board of Appeal constituted as per directives of Part 2 Chapter 2. The Board of Appeal shall determine the Occupancy, and
iii. The decision of Board of Appeal shall be considered as an explanatory material of this Code and shall be added as addendum to this Code. For any future projects of similar nature this addendum will suffice and need not be referred to the Board of Appeal again.
Source: Bangladesh National Building Code 2020, S.R.O. No. 55-Law/2020, Bangladesh Gazette (Extraordinary), 11 February 2021. Tables, figures and equations: refer to the linked gazette pages.