Ch. 5 Exhaust Systems — 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.
Cite as: 2025 California Mechanical Code (Title 24, Part 4) Chapter 5 · 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 | ||||||||||||||||||
| Adopt Entire Chapter as amended (amended sections listed below) | X | X | X | X | X | X | X | |||||||||||||||||
| Adopt only those sections that are listed below | X | |||||||||||||||||||||||
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| 504.1.1 | X | X | X | X | X | |||||||||||||||||||
| 505.7.3 | X | |||||||||||||||||||||||
| 505.12 | X | |||||||||||||||||||||||
| 505.12.1 | X | |||||||||||||||||||||||
| 507.7 | X | X | X | X | X | |||||||||||||||||||
| 508.4 | X | X | X | X | X | |||||||||||||||||||
| 509.2.3 | X | |||||||||||||||||||||||
| 509.2.3.4 | X | |||||||||||||||||||||||
| 513.2.2 | X | |||||||||||||||||||||||
| 513.2.2 Exception 2 | X | X | ||||||||||||||||||||||
| 513.3.5 | X | |||||||||||||||||||||||
| 513.10 | X | |||||||||||||||||||||||
| 513.10.1 | X |
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 5
EXHAUST SYSTEMS
501.0 General.¶
502.0 Termination.¶
503.0 Motors, Fans, and Filters.¶
504.0 Environmental Air Ducts.¶
505.0 Product-Conveying Systems.¶
506.0 Product-Conveying Ducts.¶
507.0 General Requirements.¶
508.0 Type I Hoods.¶
509.0 Grease Removal Devices in Hoods.¶
510.0 Exhaust Duct Systems.¶
511.0 Air Movement.¶
512.0 Auxiliary Equipment.¶
513.0 Fire-Extinguishing Equipment.¶
514.0 Procedures for the Use, Inspection, Testing, and Maintenance of Equipment.¶
Maintenance of Equipment.
515.0 Minimum Safety Requirements for Cooking Equipment.¶
Equipment.
516.0 Recirculating Systems.¶
517.0 Solid-Fuel Cooking Operations.¶
518.0 Downdraft Appliances.¶
519.0 Type II Hood Exhaust System Requirements.¶
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