Ch. 7 Combustion Air — 2025 California Mechanical Code
California Mechanical Code (Title 24, Part 4) · 2025 edition · updated 2026-10-19 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Sections in this part
- 701.1 Applicability.
- 701.2 Pressure Difference.
- 701.3 Makeup Air.
- 701.4 Indoor Combustion Air.
- 701.5 Indoor Opening Size and Location.
- 701.6 Outdoor Combustion Air.
- 701.7 Combination Indoor and Outdoor Combustion Air.
- 701.8 Engineered Installations.
- 701.9 Mechanical Combustion Air Supply.
- 701.10 Louvers, Grilles, and Screens.
- 701.11 Combustion Air Ducts.
- 701.12 Dampers Prohibited.
- 702.1 General.
Cite as: 2025 California Mechanical Code (Title 24, Part 4) Chapter 7 · Effective January 1, 2026 · Official source: Building Standards Commission
(Matrix Adoption Tables are non-regulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)
| Adopting Agency | BSC | BSC-CG | SFM | HCD 1 | HCD 2 | HCD 1-AC | DSA AC | DSA SS | DSA SS/CC | OSHPD 1 | OSHPD 1R | OSHPD 2 | OSHPD 3 | OSHPD 4 | OSHPD 5 | OSHPD 6 | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adopt Entire Chapter | X | X | X | X | X | X | X | X | X | X | X | X | X | |||||||||||
| Adopt Entire Chapter as amended (amended sections listed below) | ||||||||||||||||||||||||
| Adopt only those sections that are listed below | ||||||||||||||||||||||||
| Chapter/ |
||||||||||||||||||||||||
This state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.0.
CHAPTER 7
COMBUSTION AIR
701.0 General.¶
702.0 Extra Device or Attachment.¶
Explained in plain English
Guides that cite this section.
Continue researching
Related topics
State and federal sources. Edit the document title or filters, then run your search.
Get a plain-English answer with a citation back to this text.
Ask AI about this code