Ch. 6 Water Supply and Distribution — 2025 California Plumbing Code
California Plumbing Code (Title 24, Part 5) · 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 Plumbing Code (Title 24, Part 5) Chapter 6 · 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 | |||||||||||||||||||||||
| Adopt Entire Chapter as amended (amended sections listed below) | X | X | X | X | X | X | X | X | X | X | X | X | ||||||||||||
| Adopt only those sections that are listed below | X | X | X | X | X | |||||||||||||||||||
| Chapter/ |
||||||||||||||||||||||||
| Figure 601 | X | X | ||||||||||||||||||||||
| 601.2 Exceptions 3 & 4 | X | X | X | |||||||||||||||||||||
| 601.2 Exceptions 4, 5 & 6 | X | |||||||||||||||||||||||
| 601.2 Exception 5 | X | |||||||||||||||||||||||
| 601.2.1 | X | |||||||||||||||||||||||
| 601.2.1.1 | X | |||||||||||||||||||||||
| 601.2.1.2 | X | |||||||||||||||||||||||
| 601.3.2 | X | X | ||||||||||||||||||||||
| 601.3.3 | X | X | ||||||||||||||||||||||
| 601.3.3 Exception | X | |||||||||||||||||||||||
| 601.4 | X | |||||||||||||||||||||||
| 601.5 | X | |||||||||||||||||||||||
| 601.6 | X | |||||||||||||||||||||||
| 601.7 | X | |||||||||||||||||||||||
| 601.8 | X | |||||||||||||||||||||||
| 603.5.11 | X | X | ||||||||||||||||||||||
| 603.5.14 , Note | X | X | ||||||||||||||||||||||
| 604.1 Exception | X | X | X | X | X | |||||||||||||||||||
| Table 604.1 & Notes 3 - 5 | X | X | X | X | X | X | ||||||||||||||||||
| 604.1.1 | X | X | ||||||||||||||||||||||
| 604.1.2 | X | X | X | |||||||||||||||||||||
| 604.2 Note | X | X | X | |||||||||||||||||||||
| 604.13 | X | X | X | |||||||||||||||||||||
| 605.2.2 | X | X | ||||||||||||||||||||||
| 605.9 | X | X | X | X | X | X | X | X | X | X | X | X | ||||||||||||
| 605.9.1 | X | X | X | X | X | X | X | X | X | X | X | X | ||||||||||||
| 605.10 | X | X | X | X | ||||||||||||||||||||
| 605.10.1 | X | |||||||||||||||||||||||
| 605.10.1.1 | X | |||||||||||||||||||||||
| 605.12.2 | X | X | ||||||||||||||||||||||
| 605.15 | X | X | X | X | X | X | X | X | X | |||||||||||||||
| 606.8 | X | X | X | X | X | X | ||||||||||||||||||
| 609.10 | X | X | X | X | X | X | ||||||||||||||||||
| 609.11 | † | † |
CHAPTER 6 - WATER SUPPLY AND DISTRIBUTION (continued) (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 | |||||||||||||||||||||||
| Adopt Entire Chapter as amended (amended sections listed below) | X | X | X | X | X | X | X | X | X | X | X | X | ||||||||||||
| Adopt only those sections that are listed below | X | X | X | X | X | |||||||||||||||||||
| Chapter/ |
||||||||||||||||||||||||
| 609.12.3 | X | |||||||||||||||||||||||
| Table 610.3 | X | X | ||||||||||||||||||||||
| 610.5 | X | X | ||||||||||||||||||||||
| 612.0 | X | |||||||||||||||||||||||
| 612.1 | X | |||||||||||||||||||||||
| 613.0 | X | X | X | X | X | |||||||||||||||||||
| Table 613.1 | X | X | X | X | X | |||||||||||||||||||
| 614.0 | X | X | X | X | X | |||||||||||||||||||
| 615.0 | X | X | X | X | X | X | ||||||||||||||||||
| 616.0 | 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 6
WATER SUPPLY AND DISTRIBUTION
601.0 General.¶
602.0 Unlawful Connections.¶
603.0 Cross-Connection Control.¶
604.0 Materials.¶
605.0 Joints and Connections.¶
606.0 Valves.¶
607.0 Potable Water Supply Tanks.¶
608.0 Water Pressure, Pressure Regulators, Pressure Relief Valves, and Vacuum Relief Valves.¶
608.0 Water Pressure, Pressure Regulators, Pres- sure Relief Valves, and Vacuum Relief Valves.
609.0 Installation, Testing, Unions, and Location.¶
610.0 Size of Potable Water Piping.¶
611.0 Drinking Water Treatment Units.¶
612.0 Residential Fire Sprinkler Systems.¶
613.0 Domestic Hot-Water Distribution Systems for Health Facilities and Clinics.¶
Health Facilities and Clinics. [OSHPD 1, 2, 3, 4 & 5]
614.0 Dialysis Water-Distribution Systems. [OSHPD 1, 2, 3, 4 & 5]¶
2, 3, 4 & 5]
615.0 Identification of Potable and Nonpotable Water Lines.¶
Lines.
616.0 Emergency Water Supply. [OSHPD 1]¶
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