Chapter 4 Special Detailed Requirements

California Amendments by SFM

Chapter 4 – Special Detailed Requirements

State Fire Marshal

403.2.1.1 Type of construction

Corrected the Item #1 exception by deleting model code language “columns supporting floors,” which was an existing amendment that was not carried forward in the 2022 CBC.

403.3.1 Number of sprinkler system risers and system design

Incorporated an existing amendment regarding the requirements of sprinkler systems that are hydraulically designed. The terms “standpipe” and “vertical water supply zones” in this section clarify the requirements of codes and referenced standards.

403.3.1.2 Buildings more than 420 feet in height

Clarified that there are differences in requirements for buildings having a height greater than 420 feet (128 m) and in Section 403.3.1.1 buildings having a height less than 420 feet (128 m). Included requirement for sprinkler systems to be supplied from two risers to limit the impact of a single-point failure of a standpipe or sprinkler express riser.

403.5.3 Stairway door operation

Repealed an amendment regarding failure of electrical power to the locking mechanism as it is now in the adopted model code language.

404.12 Group I and R 2.1 occupancy means of egress

Added treatment rooms to the egress requirements to clarify that patient sleeping rooms and patient treatment rooms are not permitted to pass through the atrium for means of egress. Aligns with the National Fire Protection Association 101 (NFPA 101).

406.9.2 Ventilation

Corrected the reference pointer from Section 1203 to 1202, to align with model code renumbering.

407.4.4.1 Exit access through care suites

Repealed an amendment regarding egress through an adjacent care suite to align with the requirements of NFPA 101. Section 407.4.4.3 includes the requirement.

Section 407.4.4.2 Separation

Repealed redundant amendment language regarding requirements for separation using a one-hour fire barrier.

Section 407.4.4.3 Access to a corridor

Repealed an amendment regarding travel from habitable rooms. Adopted model code language clarifies that movement in a care suite is limited to 100 feet of travel to a door leading to an exit corridor or a horizontal exit.

407.4.4.3.1 One intervening room (repealed) Sleeping Room (new)

Repealed amendment regarding movement from habitable rooms through more than one intervening room and replaced with a new amendment to clarify that sleeping rooms shall be limited to one intervening room.

407.4.4.4 Reserved

Deleted model code Section 407.4.4.4 Circulation paths within a care suite because it conflicts with care suite circulation path requirements in California for unrated corridors in I-2 occupancies.

407.4.4.5.3 Travel distance (repealed)

Repealed California amendment since the adopted model code provides the same provisions in section 407.4.4.3.

408.9.1 Smoke venting

Added amendment clarifying that I-3 Occupancy Condition #9, where venting is provided that such venting applies to each housing pod. Also Exceptions 3, 4, and 5 are deleted.

408.13 Windows

Updated reference pointer for security glazing testing standards from American Society for Testing and Materials’ ASTM F1233-98 to ASTM F-1915. Deleted reference to California Department of Corrections and Rehabilitation Appendix H glazing standard as well.

408.16 Vehicle sallyports

Added amendment to specify a two-hour fire barrier separation and to clarify that solid roofs in vehicle sallyports shall be fully sprinklered per National Fire Protection Association standard, NFPA 13.

Section 422.7 Domestic cooking

Added amendment to clarify requirements for installation of cooking appliances in fully-sprinklered buildings. Item 6 added with reference pointer to Section 708.