§ 27-235 Reference standards.

Occupancy and construction classifications which appear in the several reference standards of this code shall apply to the provisions of the reference standard only unless otherwise indicated.

§ 27-236 Definitions.

For definitions to be used in the interpretation of this subchapter, see subchapter two of this chapter.

Article 2: Occupancy Classifications

§ 27-237 Occupancy groups.

Table 3-1 lists occupancy groups and sub groups that shall be established for classifying buildings and spaces in accordance with the provisions of articles three through twelve of this subchapter.

TABLE 3-1
Occupancy Classifications

Occupancy Group	Classification	Fire Index
A	High hazard	4
B-1	Storage (moderate hazard)	3
B-2	Storage (low hazard)	2
C	Mercantile	2
D-1	Industrial (moderate hazard)	3
D-2	Industrial (low hazard)	2
E	Business	2
F-1a	Assembly (theaters, etc.)	1
F-1b	Assembly (churches, concert halls, etc.)	1
F-2	Assembly (outdoors)	1
F-3	Assembly (museums, etc.)	1
F-4	Assembly (restaurants, etc.)	1
G	Education	1
H-1	Institutional (restrained)	1
H-2	Institutional (incapacitated)	1
J-1	Residential (hotels, etc.)	1
J-2	Residential (apartment houses, etc.)	1
J-3	Residential (one- and two-family dwellings)	1
K	Miscellaneous

 

§ 27-238 Classification of spaces.

Every space or room hereafter altered or erected shall, for the purposes of this code, be classified in one of the occupancy groups listed in Table 3-1 according to the occupancy or use of the space or room.

§ 27-239 Classification of buildings.

Every building hereafter erected or altered under the provisions of section 27-115 of article four of subchapter one of this chapter shall, for the purposes of this code, be classified in one of the occupancy groups listed in table 3-1 according to the main use or dominant occupancy of the building. However, at the option of the applicant, subject to the approval of the commissioner, buildings may be classified in any other occupancy group, provided such occupancy group has a higher fire index, as listed in table 3-1, than the fire index of the occupancy group classification of the main use or dominant occupant.