What Are The IBC Occupancy Use Groups?

What Are The IBC Occupancy Use Groups?

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What Are The IBC Occupancy Use Groups?

The various groups of Occupancy Use Groups are detailed in the 2021 International Building Code, Section 302, and includes:

  • Assembly: Groups A-1, A-2, A-3, A-4, and A-5 (Section 303)
  • Business: Group B (Section 304)
  • Educational: Group E (Section 305)
  • Factory and industrial: Groups F-1 and F-2 (Section 306)
  • High hazard: Groups H-1, H2, H3, H4, and H5 (Section 307)
  • Institutional: Group I-1, I-2, I-3, and I-4 (Section 308)
  • Mercantile: Group M (Section 309)
  • Residential: Groups R-1, R-2, R-3, and R-4 (Section 310)
  • Storage: Groups S-1 and S-2 (Section 311)
  • Utility and miscellaneous: Group U (Section 312)
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