408A Plumbing — 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) § 408A · Effective January 1, 2026 · Official source: Building Standards Commission
408 A .1 Materials. Plumbing materials and supplies shall not be used for repairs that are prohibited in the Title 24 Part 5 California Plumbing Code (CPC).
408 A .2 Water closet replacement. The maximum water consumption flow rates and quantities for all replaced water closets shall be 1.28 gallons ( 4.8 L) per flushing cycle.
408 A .3 Health care facilities. Portions of medical gas systems being repaired in Group I-2, ambulatory care facilities and outpatient clinics shall comply with NFPA 99 requirements for repairs.
4A-6 2025 CALIFORNIA EXISTING BUILDING CODE
CALIFORNIA EXISTING BUILDING CODE – MATRIX ADOPTION TABLE
CHAPTER 5 – PRESCRIPTIVE COMPLIANCE METHOD
(Matrix Adoption Tables are nonregulatory, 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 | DSA | OSHPD | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adopting Agency | BSC | BSC- CG |
SFM | 1 | 2 | 1/AC | AC | SS | SS/CC | 1 | 1R | 2 | 3 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Adopt Entire Chapter | X | X | ||||||||||||||||||||||
| Adopt Entire Chapter as amended (amended sections listed below) |
X | X | X | |||||||||||||||||||||
| Adopt only those sections that are listed below |
X | X | X | X | X | X | X | X | ||||||||||||||||
| Chapter / Section | ||||||||||||||||||||||||
| 501 | X | X | X | X | ||||||||||||||||||||
| 501.1 | X | X | X | |||||||||||||||||||||
| 501.1 –501.3 | X | |||||||||||||||||||||||
| 501.1.2 | X | |||||||||||||||||||||||
| 501.3 | † | † | † | |||||||||||||||||||||
| 501.4 –501.5.1 | X | |||||||||||||||||||||||
| 501.5 | X | |||||||||||||||||||||||
| 502 | X | X | X | X | ||||||||||||||||||||
| 502.1 | X | X | X | X | ||||||||||||||||||||
| 502.1.2 | X | |||||||||||||||||||||||
| 502.2 –502.3 | X | |||||||||||||||||||||||
| 502.5 | X | X | † | † | † | |||||||||||||||||||
| 502.6 | † | † | † | |||||||||||||||||||||
| 503 | X | X | X | X | ||||||||||||||||||||
| 503.1 | X | X | ||||||||||||||||||||||
| 503.2 | X | |||||||||||||||||||||||
| 503.3 | X | X | X | |||||||||||||||||||||
| 503.14 | X | † | † | † | ||||||||||||||||||||
| 503.15 | X | |||||||||||||||||||||||
| 503.16 –503.17 | X | † | † | † | ||||||||||||||||||||
| 503.18 | † | † | † | |||||||||||||||||||||
| 503.19 | X | † | † | † | ||||||||||||||||||||
| 503.20 | X | |||||||||||||||||||||||
| 504 | X | † | † | † | X | X | X | X | ||||||||||||||||
| 505 | X | X | X | X | X | |||||||||||||||||||
| 505.2 | X | X | ||||||||||||||||||||||
| 506 | X | X | X | X | ||||||||||||||||||||
| 506.1 –506.1.1 | X | X | ||||||||||||||||||||||
| 506.1.2 | X | X | X | X | ||||||||||||||||||||
| 506.2 – 506.3 | X | X | ||||||||||||||||||||||
| 506.4 | X | |||||||||||||||||||||||
| 506.5_ Exception_ | X | |||||||||||||||||||||||
| 506.6 | † | † | † |
The 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.
5-2 2025 CALIFORNIA EXISTING BUILDING CODE
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