ADDITIONS, INSERTIONS, DELETION AND CHANGES TO INTERNATIONAL BUILDING CODE 2021 EDITION

EXHIBIT B

TABLE 508.4 IS AMENDED TO INCLUDE FOOTNOTE “g” TO READ AS FOLLOWS:

TABLE 508.4

REQUIRED SEPARATION OF OCCUPANCIES (HOURS) f

OCCUPANCY GROUP A, E I-1 a, I-3, I-4 I-2 R a F-2, S-2 b, U B e,g, F-1, M, S-1 H-1 H-2 H-3, H-4 H-5
S NS S NS S NS S NS S NS S NS S NS S NS S NS S NS
A, E N N 1 2 2 NP 1 2 N 1 1 2 NP NP 3 4 2 3 2 NP
I-1 a, I-3, I-4 1 2 N N 2 NP 1 NP 1 2 1 2 NP NP 3 NP 2 NP 2 NP
I-2 2 NP 2 NP N N 2 NP 2 NP 2 NP NP NP 3 NP 2 NP 2 NP
R a 1 2 N N 2 NP N N 1 c 2 c 1 2 NP NP 3 NP 2 NP 2 NP
F-2, S-2 b, U N 1 1 2 N N 1 c 2 c N N 1 2 NP NP 3 4 2 3 2 NP
B e,g, F-1, M, S-1 1 2 1 2 2 NP N N 1 2 N N NP NP 2 3 1 2 1 NP
H-1 NP NP NP NP NP NP NP NP NP NP NP NP N NP NP NP NP NP NP NP
H-2 3 4 3 NP 3 NP 3 NP 3 4 2 3 NP NP N NP 1 NP 1 NP
H-3, H-4 2 3 2 NP 2 NP 2 NP 2 3 1 2 NP NP 1 NP 1 d NP 1 NP
H-5 2 NP 2 NP 2 NP 2 NP 2 NP 1 NP NP NP 1 NP 1 NP N NP

S = Buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1.

NS = Buildings not equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1.

N = No separation requirement.

NP = Not permitted.

a.   See Section 420.
b.   The required separation from areas used only for private or pleasure vehicles shall be reduced by 1 hour but to not less than 1 hour.
c. See Section 406.3.2 and 406.6.4.
d. Separation is not required between occupancies of the same classification.
e. See Section 422.2 for ambulatory care facilities.
f. Occupancy separations that serve to define fire area limits established in Chapter 9 for requiring fire protection systems shall also comply with Section 707.3.10 and Table 707.3.10 in accordance with Section 901.7.
g. Group B occupancies are not required to be separated from Group F-2, S-2 or U occupancies, unless required by the County Engineer or Fire Code Official.
TABLE 1004.5 “ASSEMBLY” IS AMENDED TO READ AS FOLLOWS:

TABLE 1004.5

MAXIMUM FLOOR AREA ALLOWANCES PER OCCUPANT

FUNCTION OF SPACE

OCCUPANT LOAD FACTOR a

Assembly Gaming floors (keno, slots, etc.) Exhibit Gallery and Museum Escape/Puzzle rooms   11 gross 30 net 11 net
Assembly with fixed seats

See Section 1004.6

Assembly without fixed seats Concentrated (chairs only—not fixed) Standing space Unconcentrated (tables and chairs)   7 net 5 net 15 net

For SI: 1 square foot = 0.0929 m².

  1. Floor area in square feet per occupant.

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