Chapter 6 — CLASSIFICATION OF WORK
601 General — 2025 California Existing Building Code
California Existing Building Code (Title 24, Part 10) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Existing Building Code (Title 24, Part 10) § 601 · Effective January 1, 2026 · Official source: Building Standards Commission
601.1 Scope.¶
The provisions of this chapter shall be used in conjunction with Chapters 7 through 11 and shall apply to the alteration, addition and change of occupancy of existing structures, as referenced in Section 301.3.2. The work performed on an existing building shall be classified in accordance with this chapter. Historic buildings and structures shall comply with Part 8, Title 24, C.C.R.
Exceptions: 1. [SFM] Use of Chapters 6-11 is not permitted in H, I and L, R-2.1, R-3.1 occupancies and high-rise buildings. 2. [BSC] Use of Chapters 6-11 is not permitted in occupancies, buildings and applications regulated by Building Standards Commission and listed in Section 1.2.
601.1.1 Compliance with other alternatives. Alterations, additions and changes of occupancy to existing structures shall comply with the provisions of Chapters 7 through 11 or with one of the alternatives provided in Section 301.3.
601.2 Work area.¶
The work area, as defined in Chapter 2, shall be identified on the construction documents.
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