Chapter 28 — MECHANICAL SYSTEMS
2801 General — 2025 California Building Code
California Building Code (Title 24, Part 2) · 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 Building Code (Title 24, Part 2) § 2801 · Effective January 1, 2026 · Official source: Building Standards Commission
[M] 2801.1 Scope. The provisions of this chapter, the California Mechanical Code and the California Plumbing Code shall govern the design, construction, erection and installation of mechanical appliances, equipment and systems used in buildings and structures covered by this code. Masonry chimneys, fireplaces and barbecues shall comply with the California Mechanical Code and Chapter 21 of this code. The California Fire Code, the International Property Maintenance Code, the California Mechanical Code and the California Plumbing Code shall govern the use and maintenance of mechanical components, appliances, equipment and systems. The Califor- nia Existing Building Code, the California Mechanical Code and the California Plumbing Code shall govern the alteration, repair, relocation, replacement and addition of mechanical components, appliances, equipment and systems.
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