Chapters 5, 7, 7A and 8
Chapter 5 – General Building Heights and Areas
State Fire Marshal
Table 504.3 Allowable building height in feet above grade plane
Reinstated an existing amendment (erroneously not printed in the 2022 CBC) to the I-2 occupancy classification to correct the building height values to indicate “NP” (not permitted) for construction Types IIIB and VB.
506.2.1 Single-occupancy buildings. Equation 5-2
Corrected and clarified existing amendment related to total allowable area calculations for a single-occupancy building more than two stories above grade plane. Existing amendments associated with Equation 5-2 were unintentionally omitted during the last model code adoption when several model code changes occurred in allowable area formulas.
A maximum of Sa=2 multiplier is allowed for Groups A, E, H, I, L, and R occupancies, high-rise buildings, and other applications listed in Section 1.11 regulated by the Office of the State Fire Marshal. A maximum of Sa=3 multiplier is allowed for all the other buildings. Sa=4 multiplier is not allowed in California.
508.2.4 Separation of occupancies
Modified the existing amendment of Exception Item 4 to remove reference to vehicle sallyports and repealed the exception to separation requirements for I-3 occupancy groups.
508.3.3 Separation
Repealed Exception Item 3, that required separation between Group I-3 occupancies and vehicle sally ports. Additionally, Exception Item 4 is renumbered to Item 3.
Chapter 7 – Fire and Smoke Protection Features
State Fire Marshal
707.5 Continuity
Added amendment regarding termination of fire barriers required for incidental use rooms per CBC Table 509.1 in I-2 occupancies. Added Items 4 and 5 to clarify applicability of fire resistance ratings in I-2 occupancies.
Chapter 7A – Materials and Construction Methods for Exterior Wildfire Exposure
State Fire Marshal
Deleted Chapter 7A from CBC and relocated the requirements to the California Wildland-Urban Interface Code, Part 7, Title 24. Added a “User Note” to point to CBC Section 101.4.8 for administrative requirements and applicability of buildings and structures located in the wildland-urban interface (WUI) or a Fire Hazard Severity Zone.
Chapter 8 – Interior Finishes
State Fire Marshal
Table 803.13 Interior wall and ceiling finish requirements by occupancy
For Group I-2, corrected footnote “n” to indicate footnote “o.”