Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
California Plumbing Code (Title 24, Part 5) · 2019 edition · updated 2026-09-10 · California
Italicized text is a California amendment to the model code, as printed in the official publication.
Sections in this part
- 401.2 Quality of Fixtures.
- 401.3 Water-Conserving Fixtures and Fittings.Note 1: [BSC, DSA-SS & DSA-SS/CC] Flow…
- 402.2 Joints. Where a fixture comes in contact with the wall
- 402.3 Securing Fixtures. Floor-outlet or floor-mounted
- 402.4 Wall-Hung Fixtures. Wall-hung fixtures shall be
- 402.5 Setting.
- 402.6 Flanged Fixture Connections.
- 403.2 Fixtures and Fixture Fittings for Persons with
- 403.3 Exposed Pipes and Surfaces. Water supply and
- 404.2 Overflows.
- 405.2 Prohibited Urinals. Trough urinals and urinals with
- 405.3 Miscellaneous Fixtures. Fixed wooden, or tile
- 402.7 Supply Fittings. The supply lines and fittings for
- 402.8 Installation. Fixtures shall be installed in accordance
- 402.9 Design and Installation of Plumbing Fixtures.
- 402.10 Slip Joint Connections.
- 402.11 Future Fixtures. Where provisions are made for the
- 406.2 Special Use Sinks. Restaurant kitchen and other
- 406.3 Special Use Fixtures. Special use fixtures shall be
- 406.4 Zinc Alloy Components. Zinc alloy components
- 407.2 Water Consumption. The maximum water flow rate of
- 407.4 Transient Public Lavatories.
- 407.5 Waste Outlet. Lavatories shall have a waste outlet
- 407.6 Overflow. Where overflows are provided, they shall
- 408.2 Water Consumption. Showerheads shall have a
- 408.3 Individual Shower and Tub-Shower Combina-tion Control Valves.
- 407.3 Limitation of Hot Water Temperature for PublicLavatories.
- 408.4 Waste Outlet. Showers shall have a waste outlet and
- 408.5 Finished Curb or Threshold. Where a shower
- 408.7 Lining for Showers and Receptors. Shower
- 408.6 Shower Compartments. Shower compartments,
- 408.8 Public Shower Floors. Floors of public shower
- 408.9 Location of Valves and Heads. Control valves and
- 408.10 Water Supply Riser. A water supply riser from the
- 409.2 Waste Outlet. Bathtubs and whirlpool bathtubs shall
- 409.3 Overflow. Where overflows are provided, they shall
- 409.4 Limitation of Hot Water in Bathtubs and
- 409.5 Backflow Protection. The water supply to a bathtub
- 409.6 Installation and Access. Bathtubs and whirlpool
- 410.2 Backflow Protection. The water supply to the bidet
- 410.3 Limitation of Water Temperature in Bidets. The
- 411.0 Water Closets.411.1 Application. Water closets shall comply with ASME
- 411.2 Water Consumption. The effective flush volume of
- 411.3 Water Closet Seats.
- 411.4 Personal Hygiene Devices.
- 412.0 Urinals.412.1 Application. Urinals shall comply with ASME
- 412.2 Backflow Protection. A water supply to a urinal
- 413.2 Flushometer Valves. Flushometer valves and
- 413.3 Flush Tanks. Flush tanks for manual flushing shall
- 413.4 Water Supply for Flush Tanks.
- 413.5 Overflows in Flush Tanks.
- 414.2 Backflow Protection. The water supply connection
- 414.3 Drainage Connection. Domestic dishwashing
- 415.0 Drinking Fountains.415.1 Application. Drinking fountains shall be self-closing
- 415.2 Drinking Fountain Alternatives. Where food is
- 415.3 Drainage Connection. Drinking fountains shall be
- 415.4 Location. Drinking fountains shall not be installed in
- 416.2 Water Supply. Emergency eyewash and shower
- 416.3 Installation.
- 416.4 Location.
- 416.5 Drain. A drain shall not be required for emergency
- 417.0 Faucets and Fixture Fittings.417.1 Application.
- 417.2 Deck Mounted Bath/Shower Valves. Deck
- 417.3 Handheld Showers. Handheld showers shall comply
- 417.4 Faucets and Fixture Fittings with Hose Con-nected Outlets.
- 417.5 Separate Controls for Hot and Cold Water.
- 418.2 Strainer. Floor drains shall be considered plumbing
- 418.3 Location of Floor Drains. Floor drains shall be
- 418.4 Food Storage Areas. Where drains are provided in
- 418.5 Floor Slope. Floors shall be sloped to floor drains.
- 419.2 Drainage Connection. Approved wye or other
- 419.3 Water Supply. A cold water supply shall be provided
- 420.2 Water Consumption.
- 420.3 Pre-Rinse Spray Valve. Commercial food service
- 420.4 Waste Outlet. Kitchen and laundry sinks shall have
- 421.2 Strainers. The waste outlet of a floor sink shall be
- 422.2 Separate Facilities. Separate toilet facilities shall
- 422.0 Minimum Number of Required Fixtures.422.1 Fixture Count.
- 422.3 Fixture Requirements for Special Occupan-cies.
- 422.4 Toilet Facilities Serving Employees and Cus-
- 422.5 Toilet Facilities for Workers. Toilet facilities shall
- 422.6 [CA] Cosmetology. Each school shall provide pub-
- 422.7 [CA] Cosmetology Establishments. Each estab-
- 422.8 [DPH] Commissaries Serving Mobile FoodPreparation Units.
- 422.9 [DPH] Employee Lavatories in Food Establish-ments.
(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.)
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| 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 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
amended (amended sections listed below) |
X | **X ** | X | X | X | X | **X ** | **X ** | X | X | X | X | |||||||||||
that are listed below |
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2019 CALIFORNIA PLUMBING CODE 55
CALIFORNIA PLUMBING CODE – MATRIX ADOPTION TABLE CHAPTER 4 - PLUMBING FIXTURES AND FIXTURE FITTINGS (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 Adopt Entire Chapter Adopt Entire Chapter as amended (amended sections listed below) Adopt only those sections that are listed below Chapter/Section 422.1.2 422.1.3 422.2 422.2 Exceptions 422.3.1 & Exception 422.4 422.5 422.6 422.7 422.8 422.9 Table A Table 4-2 Table 4-3 Table 4-4 |
BSC | BSC- CG |
SFM | HCD | DSA | OSHPD | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Adopting Agency amended (amended sections listed below) that are listed below |
**BSC ** | BSC- CG |
SFM | 1 | 2 | 1-AC | **AC ** | SS | SS/CC | 1 | 1R | 2 | 3 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
Adopting Agency amended (amended sections listed below) that are listed below |
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Adopting Agency amended (amended sections listed below) that are listed below |
X | **X ** | X | X | X | X | **X ** | **X ** | X | X | X | X | |||||||||||
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Adopting Agency amended (amended sections listed below) that are listed below |
| Adopting Agency Adopt Entire Chapter Adopt Entire Chapter as amended (amended sections listed below) Adopt only those sections that are listed below Chapter/Section 422.1.2 422.1.3 422.2 422.2 Exceptions 422.3.1 & Exception 422.4 422.5 422.6 422.7 422.8 422.9 Table A Table 4-2 Table 4-3 Table 4-4 |
BSC | BSC- CG |
SFM | HCD | DSA | OSHPD | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC | |||||||||
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Adopting Agency amended (amended sections listed below) that are listed below |
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Adopting Agency amended (amended sections listed below) that are listed below |
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Adopting Agency amended (amended sections listed below) that are listed below |
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Adopting Agency amended (amended sections listed below) that are listed below |
| Adopting Agency Adopt Entire Chapter Adopt Entire Chapter as amended (amended sections listed below) Adopt only those sections that are listed below Chapter/Section 422.1.2 422.1.3 422.2 422.2 Exceptions 422.3.1 & Exception 422.4 422.5 422.6 422.7 422.8 422.9 Table A Table 4-2 Table 4-3 Table 4-4 |
BSC | BSC- CG |
SFM | HCD | DSA | OSHPD | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Adopting Agency amended (amended sections listed below) that are listed below |
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.
56 2019 CALIFORNIA PLUMBING CODE
CHAPTER 4
PLUMBING FIXTURES AND FIXTURE FITTINGS
Note: In addition to the requirements of this chapter, buildings or facilities where accessibility is required for applications listed in California Code of Regulations, Title 24, Part 2 (California Building Code), Chapter 1, Section 1.9.1 regulated by the Division of the State Architect–Access Compliance shall also comply with Title 24, Part 2, Chapter 11A or 11B, as applicable under authority cited by CA Government Code Section 4450 and in reference cited by CA Government Code Sections 4450 through 4461, 12955.1(c), and CA Health and Safety Code Sections 18949.1, 19952 through 19959.
401.0 General.401.1 Applicability. This chapter shall govern the materials¶
and installation of plumbing fixtures, including faucets and fixture fittings, and the minimum number of plumbing fixtures required based on occupancy.
402.0 Installation.402.1 Cleaning. Plumbing fixtures shall be installed in a¶
manner to afford easy access for repairs and cleaning. Pipes from fixtures shall be run to the nearest wall.
403.0 Accessible Plumbing Facilities.403.1 General.¶
Where accessible facilities are required in applicable building regulations, the facilities shall be installed in accordance with those regulations. [HCD 1-AC] For spe- cific requirements regarding accommodations for persons with disabilities, see Chapter 11A of the California Building Code.
404.0 Waste Fittings and Overflows.404.1 Waste Fittings. Waste fittings shall comply with¶
ASME A112.18.2/CSA B125.2, ASTM F409 or Table 701.2 for aboveground drainage piping and fittings.
405.0 Prohibited Fixtures.405.1 Prohibited Water Closets. Water closets having an¶
invisible seal or an unventilated space or having walls which are not thoroughly washed at each discharge shall be prohibited. A water closet that might permit siphonage of the contents of the bowl back into the tank shall be prohibited.
406.0 Special Fixtures and Specialties.406.1 Water and Waste Connections.¶
Baptisteries, ornamental and lily ponds, aquaria, ornamental fountain basins,
«
Where floor-mounted, back-outlet water closets are used, the soil pipe shall be not less than 3 inches (80 mm) in diameter. Offset, eccentric, or reducing floor flanges shall not be used.
407.0 Lavatories.407.1 Application. Lavatories shall comply with ASME¶
A112.19.1/CSA B45.2, ASME A112.19.2/CSA B45.1, ASME A112.19.3/CSA B45.4, ASME A112.19.12, CSA B45.5/IAPMO Z124, CSA B45.8/IAPMO Z403, CSA B45.11/IAPMO Z401 or CSA B45.12/IAPMO Z402.
408.0 Showers.408.1 Application. Manufactured shower receptors and¶
shower bases shall comply with ASME A112.19.1/CSA B45.2, ASME A112.19.2/CSA B45.1, ASME A112.19.3/CSAB45.4, CSA B45.12/IAPMO Z402, or CSA B45.5/IAPMO Z124.
409.0 Bathtubs and Whirlpool Bathtubs.409.1 Application. Bathtubs shall comply with ASME¶
A112.19.1/CSA B45.2, ASME A112.19.2/CSA B45.1, ASME A112.19.3/CSA B45.4, CSA B45.5/IAPMO Z124, or CSA B45.12/IAPMO Z402. Whirlpool bathtubs shall comply with
ASME A112.19.7/CSA B45.10. Pressure sealed doors within a bathtub or whirlpool bathtub enclosure shall comply with ASME A112.19.15.
410.0 Bidets.410.1 Application. Bidets shall comply with ASME¶
A112.19.2/CSA B45.1 or ASME A112.19.3/CSA B45.4.
413.0 Flushing Devices.413.1 Where Required. Each water closet, urinal, clinical¶
sink, or other plumbing fixture that depends on trap siphonage to discharge its waste contents shall be provided with a flushometer valve, flushometer tank, or flush tank designed and installed so as to supply water in sufficient quantity and rate of flow to flush the contents of the fixture to which it is connected, to cleanse the fixture, and to refill the fixture trap, without excessive water use. Flushing devices shall comply with the antisiphon requirements in accordance with Section 603.5.
414.0 Dishwashing Machines.414.1 Application. Domestic dishwashing machines shall¶
comply with UL 749. Commercial dishwashing machines shall comply with NSF 3 and UL 921.
416.0 Emergency Eyewash and Shower Equipment.416.1 Application.¶
Emergency eyewash and shower equipment shall comply with ISEA Z358.1.
418.0 Floor Drains.418.1 Application. Floor drains shall comply with ASME¶
A112.3.1, ASME A112.6.3, or CSA B79.
419.0 Food Waste Disposers.419.1 Application. Food waste disposal units shall comply¶
with UL 430. Residential food waste disposers shall also comply with ASSE 1008.
420.0 Sinks.420.1 Application. Sinks shall comply with ASME¶
A112.19.1/CSA B45.2, ASME A112.19.2/CSA B45.1, ASME A112.19.3/CSA B45.4, CSA B45.5/IAPMO Z124, CSA B45.8/IAPMO Z403, or CSA B45.12/IAPMO Z402. Moveable sink systems shall comply with ASME A112.19.12.
421.0 Floor Sinks.421.1 Application. Floor sinks shall comply with ASME¶
A112.6.7.
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Ask AI about this code▸Contents — California Plumbing Code (Title 24, Part 5)
- Chapter 1 — GENERAL CODE PROVISIONS
- Chapter 2 — DEFINITIONS
- Chapter 3 — GENERAL REGULATIONS
▸Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
Overview- 401.2 Quality of Fixtures. Plumbing fixtures shall be construc…
- 401.3 Water-Conserving Fixtures and Fittings.Note 1: [BSC, DSA…
- 402.2 Joints. Where a fixture comes in contact with the wall
- 402.3 Securing Fixtures. Floor-outlet or floor-mounted
- 402.4 Wall-Hung Fixtures. Wall-hung fixtures shall be
- 402.5 Setting. Fixtures shall be set level and in proper align…
- 402.6 Flanged Fixture Connections. Fixture connections between…
- 403.2 Fixtures and Fixture Fittings for Persons with
- 403.3 Exposed Pipes and Surfaces. Water supply and
- 404.2 Overflows. Where a fixture is provided with an overflow,…
- 405.2 Prohibited Urinals. Trough urinals and urinals with
- 405.3 Miscellaneous Fixtures. Fixed wooden, or tile
- 402.7 Supply Fittings. The supply lines and fittings for
- 402.8 Installation. Fixtures shall be installed in accordance
- 402.9 Design and Installation of Plumbing Fixtures. Plumbing f…
- 402.10 Slip Joint Connections. Fixtures having concealed slip …
- 402.11 Future Fixtures. Where provisions are made for the
- 406.2 Special Use Sinks. Restaurant kitchen and other
- 406.3 Special Use Fixtures. Special use fixtures shall be
- 406.4 Zinc Alloy Components. Zinc alloy components
- 407.2 Water Consumption. The maximum water flow rate of
- 407.4 Transient Public Lavatories. Self-closing or metering fa…
- 407.5 Waste Outlet. Lavatories shall have a waste outlet
- 407.6 Overflow. Where overflows are provided, they shall
- 408.2 Water Consumption. Showerheads shall have a
- 408.3 Individual Shower and Tub-Shower Combina-tion Control Va…
- 407.3 Limitation of Hot Water Temperature for PublicLavatories…
- 408.4 Waste Outlet. Showers shall have a waste outlet and
- 408.5 Finished Curb or Threshold. Where a shower
- 408.7 Lining for Showers and Receptors. Shower
- 408.6 Shower Compartments. Shower compartments,
- 408.8 Public Shower Floors. Floors of public shower
- 408.9 Location of Valves and Heads. Control valves and
- 408.10 Water Supply Riser. A water supply riser from the
- 409.2 Waste Outlet. Bathtubs and whirlpool bathtubs shall
- 409.3 Overflow. Where overflows are provided, they shall
- 409.4 Limitation of Hot Water in Bathtubs and
- 409.5 Backflow Protection. The water supply to a bathtub
- 409.6 Installation and Access. Bathtubs and whirlpool
- 410.2 Backflow Protection. The water supply to the bidet
- 410.3 Limitation of Water Temperature in Bidets. The
- 411.0 Water Closets.411.1 Application. Water closets shall com…
- 411.2 Water Consumption. The effective flush volume of
- 411.3 Water Closet Seats. Water closet seats shall be properly…
- 411.4 Personal Hygiene Devices. Water closets with integral pe…
- 412.0 Urinals.412.1 Application. Urinals shall comply with ASME
- 412.2 Backflow Protection. A water supply to a urinal
- 413.2 Flushometer Valves. Flushometer valves and
- 413.3 Flush Tanks. Flush tanks for manual flushing shall
- 413.4 Water Supply for Flush Tanks. An adequate quantity of wa…
- 413.5 Overflows in Flush Tanks. Flush tanks shall be provided …
- 414.2 Backflow Protection. The water supply connection
- 414.3 Drainage Connection. Domestic dishwashing
- 415.0 Drinking Fountains.415.1 Application. Drinking fountains…
- 415.2 Drinking Fountain Alternatives. Where food is
- 415.3 Drainage Connection. Drinking fountains shall be
- 415.4 Location. Drinking fountains shall not be installed in
- 416.2 Water Supply. Emergency eyewash and shower
- 416.3 Installation. Emergency eyewash and shower equipment sha…
- 416.4 Location. Emergency eyewash and shower equipment shall b…
- 416.5 Drain. A drain shall not be required for emergency
- 417.0 Faucets and Fixture Fittings.417.1 Application. Faucets …
- 417.2 Deck Mounted Bath/Shower Valves. Deck
- 417.3 Handheld Showers. Handheld showers shall comply
- 417.4 Faucets and Fixture Fittings with Hose Con-nected Outlet…
- 417.5 Separate Controls for Hot and Cold Water. Where two sepa…
- 418.2 Strainer. Floor drains shall be considered plumbing
- 418.3 Location of Floor Drains. Floor drains shall be
- 418.4 Food Storage Areas. Where drains are provided in
- 418.5 Floor Slope. Floors shall be sloped to floor drains.
- 419.2 Drainage Connection. Approved wye or other
- 419.3 Water Supply. A cold water supply shall be provided
- 420.2 Water Consumption. Sink faucets shall have a maximum flo…
- 420.3 Pre-Rinse Spray Valve. Commercial food service
- 420.4 Waste Outlet. Kitchen and laundry sinks shall have
- 421.2 Strainers. The waste outlet of a floor sink shall be
- 422.2 Separate Facilities. Separate toilet facilities shall
- 422.0 Minimum Number of Required Fixtures.422.1 Fixture Count.…
- 422.3 Fixture Requirements for Special Occupan-cies. Additiona…
- 422.4 Toilet Facilities Serving Employees and Cus-
- 422.5 Toilet Facilities for Workers. Toilet facilities shall
- 422.6 [CA] Cosmetology. Each school shall provide pub-
- 422.7 [CA] Cosmetology Establishments. Each estab-
- 422.8 [DPH] Commissaries Serving Mobile FoodPreparation Units.…
- 422.9 [DPH] Employee Lavatories in Food Establish-ments. Emplo…
- Chapter 5 — WATER HEATERS
- Chapter 6 — WATER SUPPLY AND DISTRIBUTION
- Chapter 7 — SANITARY DRAINAGE
- Chapter 8 — INDIRECT WASTES
- Chapter 9 — VENTS
- Chapter 10 — TRAPS AND INTERCEPTORS
- Chapter 11 — STORM DRAINAGE
- Chapter 12 — FUEL GAS PIPING
- Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICA…
- Chapter 14 — FIRESTOP PROTECTION
- Chapter 15 — ALTERNATE WATER SOURCES FOR NONPOTABLE APPLICATIONS
- Chapter 16 — NONPOTABLE RAINWATER CATCHMENT SYSTEMS
- Chapter 17 — REFERENCED STANDARDS
- Appendix A — RECOMMENDED RULES FOR SIZING THE WATER SUPPLY SYS…
- Appendix B — EXPLANATORY NOTES ON COMBINATION WASTE AND VENT S…
- Appendix C — ALTERNATE PLUMBING SYSTEMS
- Appendix D — SIZING STORM WATER DRAINAGE SYSTEMS
- Appendix E — MANUFACTURED/MOBILE HOME PARKS AND RECREATIONAL V…
- Appendix F — FIREFIGHTER BREATHING AIR REPLENISHMENT SYSTEMS
- Appendix G — SIZING OF VENTING SYSTEMS
- Appendix H — PRIVATE SEWAGE DISPOSAL SYSTEMS
- Appendix I — INSTALLATION STANDARD FOR PEX TUBING SYSTEMS FOR …
- Appendix J — COMBINATION OF INDOOR AND OUTDOOR COMBUSTION AND …
- Appendix K — POTABLE RAINWATER CATCHMENT SYSTEMS
- Appendix L — SUSTAINABLE PRACTICES
- Appendix M — PEAK WATER DEMAND CALCULATOR