California Building Standards Code
California Plumbing Code (Title 24, Part 5)
2025 edition · Effective January 1, 2026 · Full text · Explained in plain English
Part 5 of Title 24 — Plumbing, drainage, venting and water-supply requirements.
- Edition
- 2025
- Effective
- 2026-01-01
- Last updated
- 2026-09-25
- Contents
- 36 chapters · 1,138 sections
- Jurisdiction
- California
Contents
▸Chapter 1 — GENERAL CODE PROVISIONS
Overview- 101.1 Title.
- 101.2 Scope.
- 101.3 Purpose.
- 101.4 Unconstitutional.
- 101.5 Validity.
- 102.1 Conflicts Between Codes.
- 102.2 Existing Installations.
- 102.3 Maintenance.
- 102.4 Additions, Alterations, Renovations, or Repairs.
- 102.5 Health and Safety.
- 102.6 Changes in Building Occupancy.
- 102.7 Moved Structures.
- 102.8 Appendices.
- 103.1 General.
- 103.2 Liability.
- 103.3 Applications and Permits.
- 103.4 Right of Entry.
- 104.1 Permits Required.
- 104.2 Exempt Work.
- 104.3 Application for Permit.
- 104.4 Permit Issuance.
- 104.5 Fees.
- 105.1 General.
- 105.2 Required Inspections.
- 105.3 Testing of Systems.
- 105.4 Connection to Service Utilities.
- 106.1 General.
- 106.2 Notices of Correction or Violation.
- 106.3 Penalties.
- 106.4 Stop Orders.
- 106.5 Authority to Disconnect Utilities in Emergen-cies.
- 106.6 Authority to Condemn.
- 107.1 General.
- 107.2 Limitations of Authority.
▸Chapter 3 — GENERAL REGULATIONS
Overview- 301.1 Applicability.
- 301.2 Minimum Standards.
- 301.3 Alternate Materials and Methods of Construction Equivalency.
- 301.4 Flood Hazard Areas.
- 301.5 Alternative Engineered Design.
- 301.6 Tall Wood (Mass Timber) Buildings.
- 301.7 One- and Two-Family Dwellings. [HCD 1]
- 301.8 OSHPD 1R. [OSHPD 1R]
- 302.1 General.
- 303.1 General.
- 304.1 General.
- 305.1 Unlawful Practices.
- 306.1 Detrimental Wastes.
- 306.2 Safe Discharge.
- 307.1 System.
- 307.2 Ownership.
- 308.1 General.
- 309.1 Engineering Practices.
- 309.2 Concealing Imperfections.
- 309.3 Burred Ends.
- 309.4 Installation Practices.
- 309.5 Sound Transmission.
- 309.6 Dead Legs.
- 310.1 Fittings.
- 310.2 Drainage and Vent Piping.
- 310.3 Waste Connection.
- 310.4 Use of Vent and Waste Pipes.
- 310.5 Obstruction of Flow.
- 310.6 Dissimilar Metals.
- 310.7 Direction of Flow.
- 310.8 Screwed Fittings.
- 310.9 Female Plastic Connections.
- 310.10 ABS and PVC Transition Joints.
- 310.11 [OSHPD 1, 2, 3, 4 & 5]
- 310.12 [OSHPD 1, 3, 4 & 5]
- 310.13 [SFM]
- 310.14 Services/Systems and Utilities. [OSHPD 1, 2, 4
- 310.15 Telephone and Data Equipment Rooms.
- 311.1 General.
- 312.1 General.
- 312.2 Installation.
- 312.3 Building Sewer and Drainage Piping.
- 312.4 Corrosion, Erosion, and Mechanical Damage.
- 312.5 Protectively Coated Pipe.
- 312.6 Freezing Protection.
- 312.7 Fire-Resistant Construction.
- 312.8 Waterproofing of Openings.
- 312.9 Steel Nail Plates.
- 312.10 Sleeves.
- 312.11 Structural Members.
- 312.12 Rodentproofing.
- 313.1 General.
- 313.2 Material.
- 313.3 Suspended Piping.
- 313.4 Alignment.
- 313.5 Underground Installation.
- 313.6 Hanger Rod Sizes.
- 313.7 Gas Piping.
- 313.8 [OSHPD 1, 2, 3, 4 & 5]
- 314.1 Trenches.
- 314.2 Tunneling and Driving.
- 314.3 Open Trenches.
- 314.4 Excavations.
- 315.1 Unions.
- 315.2 Prohibited Joints and Connections.
- 316.1 General.
- 317.1 General.
- 318.1 General.
- 318.2 Pressure Tests (10 psi or less).
- 318.3 Pressure Tests (greater than 10 psi to 100 psi).
- 318.4 Pressure Tests (exceeding 100 psi).
- 318.5 Pressure Range.
- 319.1 General.
- 320.1 General.
- 323.0 Plumbing Equipment Schedules. [OSHPD 1, 2,
▸Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
Overview- 401.1 Applicability.
- 401.2 Quality of Fixtures.
- 401.3 Water-Conserving Fixtures and Fittings.
- 402.1 Cleaning.
- 402.2 Joints.
- 402.3 Securing Fixtures.
- 402.4 Wall-Hung Fixtures.
- 402.5 Setting.
- 402.6 Flanged Fixture Connections.
- 402.7 Supply Fittings.
- 402.8 Installation.
- 402.9 Design and Installation of Plumbing Fixtures.
- 402.10 Slip Joint Connections.
- 402.11 Future Fixtures.
- 403.1 General.
- 403.2 Fixtures and Fixture Fittings for Persons with Disabilities.
- 403.3 Exposed Pipes and Surfaces.
- 404.1 Waste Fittings.
- 404.2 Overflows.
- 405.1 Prohibited Water Closets.
- 405.2 Prohibited Urinals.
- 405.3 Miscellaneous Fixtures.
- 406.1 Water and Waste Connections.
- 406.2 Special Use Sinks.
- 406.3 Special Use Fixtures.
- 406.4 Zinc Alloy Components.
- 407.1 Application.
- 407.2 Water Consumption.
- 407.3 Limitation of Hot Water Temperature for Public Lavatories.
- 407.4 Transient Public Lavatories.
- 407.5 Waste Outlet.
- 407.6 Overflow.
- 408.1 Application.
- 408.2 Tileable Shower Receptors.
- 408.3 Water Consumption.
- 408.6 Finished Curb or Threshold.
- 408.7 Shower Compartments.
- 408.8 Lining for Showers and Receptors.
- 408.4 Individual Shower and Tub-Shower Combina-
- 408.5 Waste Outlet.
- 408.9 Public Shower Floors.
- 408.10 Location of Valves and Heads.
- 408.11 Water Supply Riser.
- 409.1 Application.
- 409.2 Waste Outlet.
- 409.3 Overflow.
- 409.4 Limitation of Hot Water Temperature in Bath-tubs and Whirlpool Bathtubs.
- 411.3 Water Closet Seats.
- 411.4 Personal Hygiene Devices.
- 412.1 Application.
- 409.5 Backflow Protection.
- 409.6 Installation and Access.
- 410.1 Application.
- 410.2 Backflow Protection.
- 410.3 Limitation of Water Temperature in Bidets.
- 411.1 Application.
- 411.2 Water Consumption.
- 412.2 Backflow Protection.
- 413.1 Where Required.
- 413.2 Flushometer Valves.
- 413.3 Flush Tanks.
- 413.4 Water Supply for Flush Tanks.
- 413.5 Overflows in Flush Tanks.
- 414.1 Application.
- 414.2 Backflow Protection.
- 414.3 Drainage Connection.
- 414.4 Lead Content.
- 415.1 Application.
- 415.2 Drinking Fountain Alternatives.
- 415.3 Drainage Connection.
- 415.4 Location.
- 416.1 Application.
- 416.2 Water Supply.
- 416.3 Installation.
- 416.4 Location.
- 416.5 Drain.
- 417.1 Application.
- 417.2 Deck Mounted Bath/Shower Valves.
- 417.3 Handheld Showers.
- 417.4 Faucets and Fixture Fittings with Hose Con-nected Outlets.
- 417.5 Separate Controls for Hot and Cold Water.
- 417.6 Low-Pressure Water Dispenser.
- 417.7 Head Shampoo Sink Faucets.
- 417.8 Footbaths and Pedicure Baths.
- 418.1 Application.
- 418.2 Strainer.
- 418.3 Location of Floor Drains.
- 418.4 Food Storage Areas.
- 418.5 Floor Slope.
- 419.1 Application.
- 419.2 Drainage Connection.
- 419.3 Water Supply.
- 420.1 Application.
- 420.2 Water Consumption.
- 420.3 Pre-Rinse Spray Valve.
- 420.4 Waste Outlet.
- 421.1 Application.
- 421.2 Strainers.
- 422.1 Fixture Count.
- 422.3 Fixture Requirements for Special Occupancies.
- 422.4 Toilet Facilities Serving Employees and Cus-tomers.
- 422.2 Separate Facilities.
- 422.5 Toilet Facilities for Workers.
- 422.6 Water Closet Compartment.
- 422.7 Urinal Partitions.
- 422.8 Cosmetology.
- 422.9 Cosmetology Establishments. [CA]
- 422.10 Commissaries Serving Mobile Food Prepara-
- 422.11 Employee Lavatories in Food Establishments.
▸Chapter 5 — WATER HEATERS
Overview- 501.1 Applicability.
- 501.2 California Energy Code Water Heating System
- 502.1 General.
- 503.1 Inspection of Chimneys or Vents.
- 503.2 Final Water Heater Inspection.
- 504.1 Location.
- 504.2 Vent.
- 504.3 Clearance.
- 504.4 Pressure-Limiting Devices.
- 504.5 Temperature Limiting Devices.
- 504.6 Temperature, Pressure, and Vacuum Relief Devices.
- 504.7 Lead Content.
- 505.1 Water Heaters.
- 505.2 Safety Devices.
- 505.3 Oil-Fired Water Heaters.
- 505.4 Indirect-Fired Water Heaters.
- 506.1 General.
- 506.2 Indoor Combustion Air.
- 506.3 Indoor Opening Size and Location.
- 506.4 Outdoor Combustion Air.
- 506.5 Combination Indoor and Outdoor Combustion Air.
- 506.6 Engineered Installations.
- 506.7 Mechanical Combustion Air Supply.
- 506.8 Louvers, Grilles, and Screens.
- 506.9 Combustion Air Ducts.
- 507.1 Dielectric Insulator.
- 507.2 Seismic Provisions.
- 507.3 Appliance Support.
- 507.4 Ground Support.
- 507.5 Drainage Pan.
- 507.6 Added or Converted Equipment or Appliances.
- 507.7 Type of Gas(es).
- 507.8 Safety Shutoff Devices for Unlisted LP-Gas Appliance Used Indoors.
- 507.9 Use of Air or Oxygen Under Pressure.
- 507.10 Protection of Gas Appliances from Fumes or Gases other than Products of Combustion.
- 507.11 Process Air.
- 507.12 Flammable Vapors.
- 507.13 Installation in Residential Garages.
- 507.14 Installation in Commercial Garages.
- 507.15 Installation in Aircraft Hangars.
- 507.16 Venting of Flue Gases.
- 507.17 Extra Device or Attachment.
- 507.18 Addition to Existing System.
- 507.19 Avoiding Strain on Gas Piping.
- 507.20 Gas Appliance Pressure Regulators.
- 507.21 Bleed Lines for Diaphragm-Type Valves.
- 508.2 Installation of Appliances on Roofs.
- 508.3 Appliances on Roofs.
- 507.22 Combination of Appliances and Equipment.
- 507.23 Installation Instructions.
- 507.24 Protection of Outdoor Appliances.
- 507.25 Accessibility for Service.
- 507.26 Clearance to Combustible Materials.
- 508.1 General.
- 508.4 Appliances in Attics and Under-Floor Spaces.
- 509.1 Listing.
- 509.2 Connection to Venting Systems.
- 509.3 Minimum Safe Performance.
- 509.4 Type of Venting System to be Used.
- 509.5 Masonry, Metal, and Factory-Built Chimneys.
- 509.6 Gas Vents.
- 509.7 Single-Wall Metal Pipe.
- 509.9 Condensation Drain.
- 509.10 Vent Connectors for Category I Appliances.
- 509.8 Through-the-Wall Vent Termination.
- 509.13 Manually Operated Dampers.
- 509.14 Automatically Operated Vent Dampers.
- 509.15 Obstructions.
- 510.1 Additional Requirements to Single Appliance Vent.
- 509.11 Vent Connectors for Category II, Category III, and Category IV Appliances.
- 509.12 Appliances Requiring Draft Hoods.
- 510.2 Additional Requirements to Multiple-Appliance Vent.
▸Chapter 6 — WATER SUPPLY AND DISTRIBUTION
Overview- 601.1 Applicability.
- 601.2 Water Supply and Flushing.
- 601.3 Identification of a Potable and Nonpotable Water System.
- 601.4 Schools of Cosmetology and Cosmetological
- 601.5 Meat and Poultry Processing Plants.
- 601.6 Collection Centers and Facilities. [AGR]
- 601.7 Renderers. [AGR]
- 601.8 Horse Meat and Pet Food Establishments. [AGR]
- 602.1 Prohibited Installation.
- 602.2 Cross-Contamination.
- 602.3 Backflow Prevention.
- 602.4 Approval by Authority.
- 603.1 General.
- 603.2 Approval of Devices or Assemblies.
- 603.3 Backflow Prevention Devices, Assemblies, and Methods.
- 603.4 General Requirements.
- 603.5 Specific Requirements.
- 604.1 Pipe, Tube, and Fittings.
- 604.2 Lead Content.
- 604.3 Copper or Copper Alloy Tube.
- 604.4 Hard-Drawn Copper or Copper Alloy Tubing.
- 604.5 Flexible Connectors.
- 604.6 Cast-Iron Fittings.
- 604.7 Malleable Iron Fittings.
- 604.8 Previously Used Piping and Tubing.
- 604.9 Epoxy Coating.
- 604.10 Plastic Materials.
- 604.11 Solder.
- 604.12 Flexible Corrugated Connectors.
- 604.13 Water Heater Connectors.
- 605.1 Copper or Copper Alloy Pipe, Tubing,
- 605.2 CPVC Plastic Pipe and Joints.
- 605.3 CPVC/AL/CPVC Plastic Pipe and Joints.
- 605.4 Ductile Iron Pipe and Joints.
- 605.5 Galvanized Steel Pipe and Joints.
- 605.6 PE
- 605.7 PE-AL-PE Plastic
- 605.8 PE-RT.
- 605.9 PEX
- 605.10 PEX-AL-PEX Plastic Tubing and Joints.
- 605.11 Polypropylene (PP) Piping and Joints.
- 605.12 PVC
- 605.13 Stainless Steel Pipe
- 605.14 Slip Joints.
- 605.15 Dielectric Unions.
- 605.16 Joints Between Various Materials.
- 606.1 General.
- 606.2 Fullway Valve.
- 606.3 Multidwelling Units.
- 606.4 Multiple Openings.
- 606.5 Control Valve.
- 606.6 Accessible.
- 606.7 Multiple Fixtures.
- 606.8 [OSHPD 1, 1R, 2, 3, 4 & 5]
- 606.9 Check Valve Required.
- 606.10 Leak Detection Devices.
- 607.1 General.
- 607.2 Private Well Water Tanks.
- 607.3 Potable Water Tanks.
- 607.4 Venting.
- 607.5 Overflow.
- 607.6 Valves.
- 608.1 Inadequate Water Pressure.
- 608.2 Excessive Water Pressure.
- 608.3 Expansion Tanks, and Combination Tempera-ture and Pressure-Relief Valves.
- 608.4 Pressure Relief Valves.
- 608.5 Discharge Piping.
- 608.6 Water-Heating Devices.
- 608.7 Vacuum Relief Valves.
- 609.1 Installation.
- 609.2 Trenches.
- 609.3 Under Concrete Slab.
- 609.4 Testing.
- 609.5 Unions.
- 609.6 Location.
- 609.7 Abutting Lot.
- 609.8 Pumps.
- 609.9 Low-Pressure Cutoff Required on Booster Pumps for Water Distribution Systems.
- 609.10 Disinfection of Potable Water System.
- 609.11 Water Hammer.
- 609.12 Pipe Insulation.
- 610.1 Size.
- 610.2 Pressure Loss.
- 610.3 Quantity of Water.
- 610.4 Sizing Water Supply and Distribution Systems.
- 610.5 Sizing per Appendices A, C,
- 610.6 Friction and Pressure Loss.
- 610.7 Conditions for Using Table 610.4.
- 610.8 Size of Meter and Building Supply Pipe Using Table 610.4.
- 610.9 Size of Branches.
- 610.10 Sizing for Flushometer Valves.
- 610.11 Sizing Systems for Flushometer Tanks.
- 610.12 Sizing for Velocity.
- 610.13 Exceptions.
- 611.1 Application.
- 611.2 Air Gap Discharge.
- 611.3 Connection Tubing.
- 611.4 Sizing of Residential Softeners.
- 612.1 Installation.
- 613.1 The domestic water-heating equipment and distribu-
- 613.2 At least two pieces of hot-water-heating equipment shall
- 613.3 Instantaneous heaters are permitted for supplying hot
- 613.4 Water storage tanks shall be fabricated of corrosion-
- 613.5 Temperature control valves shall be provided to auto-
- 613.6 Hot-water distribution system serving patient care areas
- 613.7 At fixtures where water exceeding 125°F (52°C) is acces-
- 613.8 Sectionalizing valves shall be provided as required by Section 606.8.
- 613.9 Hot water distribution shall include test ports and valved
- 614.1 Dialysis water feedlines shall be CPVC (chlorinated
- 614.2 All piping for multistation or central dialysis units shall
- 614.3 All valves shall be located in accessible locations.
- 614.4 Piping and valves shall be identified according to their function.
- 614.5 A means of preventing backwashing or flushing of the
- 614.6 A continuous audible alarm shall sound at the nurses’
- 614.7 Water treatment equipment and water used for dialysis
- 614.8 A diagram of all piping as installed shall be posted at the
- 615.1 Uses Not Permitted.
- 615.2 [OSHPD 1, 1R, 2, 3, 4 & 5]
- 615.3 [OSHPD 1, 1R, 2, 3, 4 & 5]
- 616.1 For new acute care hospital buildings submitted after
- 616.2 The emergency supply of water shall be provided at ade-
- 616.3 Storage tank connections and circulation shall be
▸Chapter 7 — SANITARY DRAINAGE
Overview- 701.1 Applicability.
- 701.2 Drainage Piping.
- 701.3 Drainage Fittings.
- 701.4 Continuous Wastes.
- 701.5 Lead.
- 701.6 Caulking Ferrules.
- 701.7 Soldering Bushings.
- 702.1 Trap Size.
- 702.2 Intermittent Flow.
- 702.3 Continuous Flow.
- 703.1 Minimum Size.
- 703.2 Maximum Number of Fixture Units.
- 703.3 Sizing per Appendix C.
- 704.1 Inlet Fittings.
- 704.2 Single Vertical Drainage Pipe.
- 704.3 Commercial Sinks.
- 705.1 ABS and ABS Co-Extruded Plastic Pipe and Joints.
- 705.2 Cast-Iron Pipe and Joints.
- 705.3 Copper or Copper Alloy Pipe (DWV) and Joints.
- 705.4 Galvanized Steel Pipe and Joints.
- 705.5 Polyethylene (PE) Sewer Pipe.
- 705.6 PVC and PVC Co-Extruded Plastic Pipe and Joining Methods.
- 705.7 Stainless Steel Pipe and Joints.
- 705.8 Vitrified Clay Pipe and Joints.
- 705.9 Special Joints.
- 705.10 Joints Between Various Materials.
- 706.1 Approved Fittings.
- 706.2 Horizontal to Vertical.
- 706.3 Horizontal to Horizontal.
- 706.4 Vertical to Horizontal.
- 707.1 Plug.
- 707.2 Approved.
- 707.3 Watertight and Gastight.
- 707.4 Location.
- 707.5 Cleaning.
- 707.6 Extension.
- 707.7 Interceptor.
- 707.8 Access.
- 707.9 Clearance.
- 707.10 Fittings.
- 707.11 Pressure Drainage Systems.
- 707.12 Countersunk Cleanout Plugs.
- 707.13 Hubless Blind Plugs.
- 707.14 Trap Arms.
- 708.1 General.
- 709.1 General.
- 710.1 Backflow Protection.
- 710.2 Sewage Discharge.
- 710.3 Sewage Ejector and Pumps.
- 710.4 Discharge Line.
- 710.5 Size of Building Drains and Sewers.
- 710.6 Backwater Valves.
- 710.7 Drainage and Venting Systems.
- 710.8 Sump and Receiving Tank Construction.
- 710.9 Alarm.
- 710.10 Sump and Receiving Tank Covers and Vents.
- 710.11 Air Tanks.
- 710.12 Grinder Pump Ejector.
- 710.13 Macerating Toilet Systems and Pumped Waste Systems.
- 711.1 General.
- 712.1 Media.
- 712.2 Water Test.
- 712.3 Air Test.
- 713.1 Where Required.
- 713.2 Private Sewage Disposal System.
- 713.3 Public Sewer.
- 713.4 Public Sewer Availability.
- 713.5 Permit.
- 713.6 Lot.
- 713.7 Installation.
- 714.1 Unlawful Practices.
- 714.2 Prohibited Water Discharge.
- 714.3 Prohibited Sewer Connection.
- 714.4 Commercial Food Waste Disposer.
- 714.5 Tanks.
- 715.1 Materials.
- 715.2 Joining Methods and Materials.
- 715.3 Existing Sewers.
- 716.1 General.
- 717.1 General.
- 717.2 Meat and Poultry Processing Plants.
- 718.1 Slope.
- 718.2 Support.
- 718.3 Protection from Damage.
- 719.1 Locations.
- 719.2 No Additional Cleanouts.
- 719.3 Building Sewer Cleanouts.
- 719.4 Cleaning.
- 719.5 Access.
- 719.6 Manholes.
- 720.1 General.
- 721.1 Building Sewer.
- 721.2 Abutting Lot.
- 722.1 Building (House) Sewer.
- 722.2 Cesspools, Septic Tanks, and Seepage Pits.
- 722.3 Filling.
- 722.4 Ownership.
- 722.5 Disposal Facilities.
- 723.1 General.
- 724.1 The drainage and plumbing systems must permit the
- 724.2 Toilet soil lines shall be separated from house drainage
- 726.1 The outer premises of every official establishment,
- 726.2 Toilet soil lines shall be separated from house drainage
- 727.1 For new acute care hospital buildings submitted after the
▸Chapter 8 — INDIRECT WASTES
Overview- 801.1 Applicability.
- 801.2 Air Gap or Air Break Required.
- 801.3 Food and Beverage Handling Establishments.
- 801.4 Bar and Fountain Sink Traps.
- 801.5 Connections from Water Distribution System.
- 801.6 Sterilizers.
- 801.7 Drip or Drainage Outlets.
- 802.1 General.
- 803.1 Materials.
- 803.2 Copper and Copper Alloys.
- 803.3 Pipe Size and Length.
- 804.1 Standpipe Receptors.
- 805.1 General.
- 806.1 General.
- 807.1 Non-Classed Apparatus.
- 807.2 Undiluted Condensate Waste.
- 807.3 Domestic Dishwashing Machine.
- 808.1 General.
- 809.1 General.
- 810.1 High-Temperature Discharge.
- 810.2 Sumps, Condensers, and Intercepting Tanks.
- 810.3 Cleaning.
- 810.4 Strainers.
- 811.1 Pretreatment.
- 811.2 Waste and Vent Pipes.
- 811.3 Joining Materials.
- 811.4 Access.
- 811.5 Permanent Record.
- 811.6 Chemical Vent.
- 811.7 Discharge.
- 811.8 Diluted Chemicals.
- 812.1 General.
- 813.1 General.
- 814.1 Condensate Disposal.
- 814.2 Condensate Control.
- 814.3 Condensate Waste Pipe Material and Sizing.
- 814.4 Appliance Condensate Drains.
- 814.5 Point of Discharge.
- 814.6 Condensate Waste from Air-Conditioning Coils.
- 814.7 Plastic Fittings.
▸Chapter 9 — VENTS
Overview- 901.1 Applicability.
- 901.2 Vents Required.
- 901.3 Trap Seal Protection.
- 902.1 Interceptor.
- 902.2 Bars, Soda Fountains, and Counter.
- 903.1 Applicable Standards.
- 903.2 Use of Copper or Copper Alloy Tubing.
- 903.3 Changes in Direction.
- 904.1 Size.
- 904.2 Length.
- 905.1 Grade.
- 905.2 Horizontal Drainage Pipe.
- 905.3 Vent Pipe Rise.
- 905.4 Roof Termination.
- 905.5 Location of Opening.
- 905.6 Common Vertical Pipe.
- 906.1 Roof Termination.
- 906.2 Clearance.
- 906.3 Use of Roof.
- 906.4 Outdoor Installations.
- 906.5 Joints.
- 906.6 Lead.
- 906.7 Frost or Snow Closure.
- 907.1 Drainage Stack.
- 907.2 Yoke Vent.
- 908.1 Vertical Wet Venting.
- 908.2 Horizontal Wet Venting for a Bathroom Group.
- 909.1 General.
- 910.1 Where Permitted.
- 910.2 Approval.
- 910.3 Vents.
- 910.4 Connections and Size.
- 910.5 Vertical Waste Pipe.
- 910.6 Cleanouts.
- 910.7 Fixtures.
- 911.1 Circuit Vent Permitted.
- 911.2 Circuit Vent Size and Connection.
- 911.3 Relief Vent.
- 911.4 Slope and Size of Horizontal Branch.
- 911.5 Additional Fixtures.
- 912.1 General.
- 912.2 Minimum Requirements.
▸Chapter 10 — TRAPS AND INTERCEPTORS
Overview- 1001.1 Applicability.
- 1001.2 Where Required.
- 1002.1 Vent Pipes.
- 1002.2 Fixture Traps.
- 1002.3 Change of Direction.
- 1002.4 Vent Pipe Opening.
- 1003.1 General Requirements.
- 1003.2 Slip Joint Fittings.
- 1003.3 Size.
- 1004.1 Prohibited.
- 1004.2 Movable Parts.
- 1005.1 General.
- 1006.1 General.
- 1007.1 General.
- 1007.2 Trap Seal Primers.
- 1008.1 General.
- 1009.1 Where Required.
- 1009.2 Approval.
- 1009.3 Design.
- 1009.4 Relief Vent.
- 1009.5 Location.
- 1009.6 Maintenance of Interceptors.
- 1009.7 Discharge.
- 1010.1 General.
- 1010.2 Meat and Poultry Processing Plants. [AGR]
- 1010.3 Collection Centers and Facilities.
- 1010.4 Horse Meat and Pet Food Establishments.
- 1010.5 Draining and Plumbing.
- 1011.1 General.
- 1012.1 General.
- 1013.1 General.
- 1014.1 General.
- 1014.2 Hydromechanical Grease Interceptors.
- 1014.3 Gravity Grease Interceptors.
- 1015.1 Purpose.
- 1015.2 Components, Materials, and Equipment.
- 1015.3 Sizing and Installation.
- 1015.4 Performance.
- 1015.5 [OSHPD 1, 1R, 2, 3, 4 & 5]
- 1015.6 [OSHPD 1, 1R, 2, 3, 4 & 5]
- 1016.1 Discharge.
- 1016.2 Authority Having Jurisdiction.
- 1016.3 Construction and Size.
- 1016.4 Separate Use.
- 1017.1 Interceptors Required.
- 1017.2 Interceptor Design Alternatives.
- 1017.3 Interceptor Details.
- 1017.4 Design of Interceptors.
▸Chapter 11 — STORM DRAINAGE
Overview- 1101.1 Applicability.
- 1101.2 Where Required.
- 1101.3 Storm Water Drainage to Sanitary Sewer Pro-hibited.
- 1101.4 Material Uses.
- 1101.5 Expansion Joints Required.
- 1101.6 Subsoil Drains.
- 1101.7 Building Subdrains.
- 1101.8 Areaway Drains.
- 1101.9 Window Areaway Drains.
- 1101.10 Filling Stations and Motor Vehicle Washing Establishments.
- 1101.11 Paved Areas.
- 1101.12 Roof Drainage.
- 1101.13 Cleanouts.
- 1101.14 Rainwater Sumps.
- 1101.15 Traps on Storm Drains and Leaders.
- 1101.16 Leaders, Conductors, and Connections.
- 1102.1 Applications.
- 1102.2 Dome Strainers Required.
- 1102.3 Roof Drain Flashings.
- 1103.1 Vertical Conductors and Leaders.
- 1103.2 Size of Horizontal Storm Drains and Sewers.
- 1103.3 Size of Roof Gutters.
- 1103.4 Side Walls Draining onto a Roof.
- 1104.1 General.
- 1105.1 Application.
- 1105.2 Setback Roofs.
- 1106.1 General.
- 1106.2 Siphonic Roof Drainage Systems.
- 1106.3 Siphonic Roof Drains.
- 1107.1 Testing Required.
- 1107.2 Methods of Testing Storm Drainage Systems.
▸Chapter 12 — FUEL GAS PIPING
Overview- 1201.1 Applicability.
- 1202.1 General.
- 1202.2 Piping System Requirements.
- 1202.3 Applications.
- 1203.1 Inspection Notification.
- 1203.2 Excavation.
- 1203.3 Type of Inspections.
- 1203.4 Inspection Waived.
- 1204.1 Issuance.
- 1204.2 Gas Supplier.
- 1204.3 Unlawful.
- 1205.1 Authorized Personnel.
- 1205.2 Outlets.
- 1206.1 Disconnection.
- 1206.2 Notice.
- 1206.3 Capped Outlets.
- 1207.1 General.
- 1208.1 Installation of Piping System.
- 1208.2 Interconnections Supplying Separate Users.
- 1208.3 Sizing of Gas Piping Systems.
- 1208.4 Maximum Operating Pressure in Buildings.
- 1208.5 Acceptable Piping Materials and Joining Methods.
- 1208.6 Gas Meters.
- 1208.7 Gas Pressure Regulators.
- 1208.8 Overpressure Protection Required.
- 1208.9 Overpressure Protection Devices.
- 1208.10 Pressure Limitation Requirements.
- 1208.11 Backpressure Protection.
- 1208.12 Low-Pressure Protection.
- 1208.13 Shutoff Valves.
- 1208.14 Expansion and Flexibility.
- 1208.15 Pressure Regulator and Pressure Control Venting.
- 1209.1 General.
- 1210.1 Piping Underground.
- 1210.2 CSST Piping Systems.
- 1210.3 Installation of Aboveground Piping.
- 1210.4 Concealed Piping in Buildings.
- 1210.5 Piping in Vertical Chases.
- 1210.6 Gas Pipe Turns.
- 1210.7 Drips and Sediment Traps.
- 1210.8 Outlets.
- 1210.9 Manual Gas Shutoff Valves.
- 1210.10 Prohibited Devices.
- 1210.11 Systems Containing Gas-Air Mixtures Out-side the Flammable Range.
- 1210.12 Systems Containing Flammable Gas-Air Mixtures.
- 1211.1 Pipe and Tubing Other than CSST.
- 1211.2 Bonding of CSST Gas Piping.
- 1211.3 Arc-Resistant Jacketed CSST.
- 1211.4 Prohibited Use.
- 1211.5 Lightning Protection System.
- 1211.6 Electrical Circuits.
- 1211.7 Electrical Connections.
- 1211.8 Earthquake-Actuated Gas Shutoff Valves.
- 1212.1 Connecting Appliances and Equipment.
- 1212.4 Injection (Bunsen) Burners.
- 1212.5 Connection of Portable and Mobile Industrial Gas Appliances.
- 1212.6 Appliance Shutoff Valves and Connections.
- 1212.7 Quick-Disconnect Devices.
- 1212.2 Suspended Low-Intensity Infrared Tube Heaters.
- 1212.3 Use of Nonmetallic Gas Hose Connectors.
- 1212.8 Gas Convenience Outlets.
- 1212.9 Sediment Trap.
- 1212.10 Installation of Piping.
- 1212.11 Liquefied Petroleum Gas Facilities and Pip-ing.
- 1213.1 Piping Installations.
- 1213.2 Test Preparation.
- 1213.3 Test Pressure.
- 1213.4 Detection of Leaks and Defects.
- 1213.5 Piping System Leak Test.
- 1213.6 Purging Requirements.
- 1214.1 General.
- 1214.2 Volume.
- 1214.3 Gas Appliances.
- 1214.4 Size of Piping Outlets.
- 1215.1 Pipe Sizing Methods.
- 1215.2 Sizing of Gas Piping Systems.
- 1215.3 Sizing Equations.
- 1215.4 Sizing of Piping Sections.
- 1215.5 Engineering Methods.
- 1215.6 Variable Gas Pressure.
▸Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICAL VACUUM SYSTEMS
Overview- 1301.1 Applicability.
- 1301.2 Where Not Applicable.
- 1301.3 Conflict of Requirements.
- 1301.4 Where Required.
- 1301.5 Existing Systems.
- 1302.1 Risk Categories.
- 1302.2 Patient Care Spaces.
- 1302.3 Anesthesia.
- 1302.4 Wet Procedure Locations.
- 1303.1 Drinking Fountain Control Valves.
- 1303.2 Psychiatric Patient Rooms.
- 1303.3 Locations for Ice Storage.
- 1303.4 Sterilizers and Bedpan Steamers.
- 1303.5 Aspirators.
- 1303.6 Drains.
- 1303.7 Clinical Sinks.
- 1303.8 Water Supply for Hospitals.
- 1303.9 Work Performed in Occupied Healthcare Facilities.
- 1304.1 General.
- 1304.2 Certification of Systems.
- 1304.3 Construction Documents.
- 1304.4 Extent of Work.
- 1304.5 Record.
- 1305.1 Required Operating Pressures.
- 1305.2 Minimum Flow Rates.
- 1305.3 Minimum Station Outlets and Inlets.
- 1306.1 Certification.
- 1306.2 Certification Tests.
- 1306.3 Report Items.
- 1306.4 Components.
- 1307.1 Terms.
- 1307.2 Nature of Hazards of Gas and Vacuum Sys-tems.
- 1307.3 Permitted Locations for Medical Gases.
- 1307.4 Materials.
- 1308.1 Where Required.
- 1308.2 Pressure Relief Valves.
- 1308.3 Pressure-Relief Valve Requirements.
- 1309.1 Oxygen Requirements.
- 1309.2 Particulate Size.
- 1309.3 Suitability.
- 1309.4 Compatible Materials.
- 1309.5 Oxygen Concentrator Components.
- 1309.6 Supply Air Quality.
- 1309.7 Electrical Components.
- 1309.8 Vent Valve.
- 1309.9 Valved Sample Port.
- 1309.10 Suitable Filter.
- 1309.11 Check Valve.
- 1309.12 Outlet Valve.
- 1309.13 Oxygen Concentration Monitor.
- 1310.1 Quality of Medical Air.
- 1310.2 Uses of Medical Air.
- 1310.3 Medical Air Compressors.
- 1310.4 Medical Air Receivers.
- 1310.5 Valves.
- 1311.1 Air Sources.
- 1311.2 Medical Air Compressor Source.
- 1311.3 Air Intakes.
- 1311.4 Location.
- 1311.5 Separate Compressors.
- 1311.6 Screening.
- 1312.1 General.
- 1312.2 Medical-Surgical Vacuum Sources.
- 1312.3 Vacuum Receivers.
- 1312.4 Vacuum Filtration.
- 1312.5 Piping Arrangement and Redundancies.
- 1312.6 Piping Serviceability.
- 1312.7 Shutoff Valve.
- 1313.1 Vacuum Source Exhausts.
- 1313.2 Location.
- 1313.3 Screening.
- 1313.4 Dips and Loops.
- 1313.5 Multiple Pumps.
- 1314.1 Gas and Vacuum Shutoff Valves.
- 1314.2 Security.
- 1314.3 Labeled.
- 1314.4 Accessibility.
- 1314.5 Valve Types.
- 1314.6 Source Valves.
- 1314.7 Main Line Valve.
- 1314.8 Riser Valves.
- 1314.9 Service Valves.
- 1314.10 Zone Valves.
- 1314.11 In-Line Shutoff Valves.
- 1314.12 Valves for Future Connections.
- 1315.1 General.
- 1315.2 Required Valves.
- 1315.3 Secondary Valve.
- 1315.4 Identification.
- 1315.5 Threaded Outlets/Fittings.
- 1315.6 Gas-Specific Station Outlet/Inlet.
- 1315.7 Common Parts.
- 1315.8 Marking of Components.
- 1315.9 Components Not Specific to a Vacuum.
- 1315.10 Factory-Installed Copper Inlet Tubes.
- 1315.11 Factory-Installed Copper Outlet Tubes.
- 1315.12 Protection from Damage.
- 1315.13 Multiple Wall Outlets/Inlets.
- 1315.14 Nonstandard Operation Pressures.
- 1315.15 Post Installation.
- 1316.1 Isolation.
- 1316.2 Pressure and Vacuum Indicator Locations.
- 1317.1 Category 1.
- 1318.1 General.
- 1318.2 Cleaning.
- 1318.3 Delivery.
- 1318.4 Tubes for Medical Gas Systems.
- 1318.5 Manufacturer Markings.
- 1318.6 Documentation.
- 1319.1 Tubes for Medical Vacuum Systems.
- 1320.1 General.
- 1320.2 Changes in Direction.
- 1321.1 Brazed Joints and Fittings.
- 1321.2 Tube Joints.
- 1321.3 Filler Metals.
- 1321.4 Copper-to-Copper Joints.
- 1321.5 Accessible.
- 1321.6 Purging.
- 1321.7 Tube Ends.
- 1321.8 Cleaning Procedures.
- 1321.9 Brazing Dissimilar Metals.
- 1321.10 Nitrogen Purge.
- 1321.11 Assembling and Heating Brazed Joints.
- 1321.12 Inspection of Brazed Joints.
- 1322.1 Welded Joints Procedure.
- 1322.2 Welding for Stainless Tube.
- 1322.3 Memory Metal Fittings.
- 1322.4 Axially Swaged Fittings.
- 1322.5 Threaded Fittings.
- 1322.6 Other Types of Fittings.
- 1322.7 Prohibited Joints.
- 1323.1 Required Pipe Sizing.
- 1323.2 Pipe Protection.
- 1323.3 Location of Piping.
- 1323.4 Pipe Support.
- 1323.5 Frost Protection.
- 1323.6 Connectors.
- 1323.7 Prohibited System Interconnections.
- 1323.8 Manufacturer’s Instructions.
- 1323.9 Changes in System Use.
- 1323.10 Qualifications of Installers.
- 1323.11 Qualification of Brazing Procedures and Brazing.
- 1323.12 Breaching or Penetrating Medical Gas Pip-ing.
- 1323.13 Labeling, Identification and Operating Pres-sure.
- 1323.14 Identification of Shutoff Valves.
- 1323.15 Identification.
- 1324.1 Where Required.
- 1324.2 Breached Systems.
- 1324.3 Test Gas.
- 1324.4 Initial Piping Blowdown.
- 1324.5 Initial Pressure Tests – Medical Gas and Vac-uum Systems.
- 1325.1 General.
- 1325.2 Nature of Hazards of Gas and Vacuum Sys-tems.
- 1325.3 Central Supply Systems.
- 1325.4 Category 2 Medical Air Supply Systems.
- 1325.5 Oxygen Concentrators.
- 1325.6 Category 2 Medical-Surgical Vacuum.
- 1325.7 Valves.
- 1325.8 Station Outlets and Inlets.
- 1325.9 Pressure and Vacuum Indicators.
- 1325.10 Warning Systems.
- 1325.11 Category 2 Distribution.
- 1325.12 Labeling and Identification.
- 1325.13 Performance Criteria and Testing — Gas, Medical–Surgical Vacuum, and WAGD.
- 1326.6 Station Outlets and Inlets.
- 1326.7 Pressure and Vacuum Indicators.
- 1326.8 Warning Systems.
- 1326.9 Distribution.
- 1326.10 Labeling and Identification.
- 1327.1 General.
- 1327.2 Emergency Shutoff Valves (Oxygen and Nitrous Oxide).
- 1327.3 Warning Systems (Oxygen and Nitrous Oxide).
- 1326.1 General.
- 1326.2 Nature of Hazards of Gas and Vacuum Sys-tems.
- 1326.3 Medical Air Supply Systems.
- 1326.4 Medical–Surgical Vacuum Systems.
- 1326.5 Valves.
- 1327.4 Initial Pressure Test.
- 1327.5 Maximum Copper Tube Support Spacing.
- 1327.6 Maximum Plastic Pipe Support Spacing.
- 1327.7 Standing Pressure Tests for Oxygen and Nitrous Oxide Piping.
- 1327.8 Verifier Operational Pressure Test.
▸Chapter 14 — FIRESTOP PROTECTION
Overview- 1401.1 Applicability.
- 1402.1 Penetrations.
- 1403.1 Materials.
- 1404.1 General Requirements.
- 1404.2 Fire-Resistance Rating.
- 1404.3 Firestop Systems.
- 1404.4 Connections.
- 1404.5 Insulation and Coverings.
- 1404.6 Sleeves.
- 1405.1 General Requirements.
- 1405.2 Fire-Resistance Rating.
- 1405.3 Firestop Systems.
- 1405.4 Connections.
- 1405.5 Unshielded Couplings.
- 1405.6 Sleeves.
- 1405.7 Insulation and Coverings.
- 1406.1 General.
- 1406.2 Examination.
- 1406.3 Penetrations.
- 1406.4 Field Installations.
▸Chapter 15 — ALTERNATE WATER SOURCES FOR NONPOTABLE APPLICATIONS
Overview- 1501.1 Applicability.
- 1501.2 System Design.
- 1501.3 Permit.
- 1501.4 Component Identification.
- 1501.5 Maintenance and Inspection.
- 1505.16
- 1501.6 Operation and Maintenance Manual.
- 1501.7 Minimum Water Quality Requirements.
- 1501.8 Material Compatibility.
- 1501.9 Signage.
- 1501.10 System Controls.
- 1502.1 General.
- 1502.2 Supply System Inspection and Test.
- 1502.3 Cross-Connection Inspection and Testing.
- 1502.4 Separation Requirements.
- 1502.5 Abandonment.
- 1502.6 Sizing.
- 1503.1 General.
- 1503.2 System Requirements.
- 1503.3 Connections to Potable and Reclaimed (Recy-cled) Water Systems.
- 1503.4 Location.
- 1503.5 Plot Plan Submission.
- 1503.6 Prohibited Location.
- 1503.7 Drawings and Specifications.
- 1503.8 Procedure for Estimating Gray Water Dis-charge.
- 1503.9 Gray Water System Components.
- 1504.1 General.
- 1504.2 Required Area of Subsurface Irrigation Fields, Subsoil Irrigation Fields, and Mulch Bas…
- 1504.3 Determination of Maximum Absorption Capacity.
- 1504.4 Groundwater Level.
- 1504.5 Irrigation, Disposal Field and Mulch Basin Construction.
- 1504.6 Reserved.
- 1504.7 Reserved
- 1504.8 Gray Water System Color and Marking Infor-mation.
- 1504.9 Other Collection and Distribution Systems.
- 1504.10 Testing.
- 1504.11 Maintenance.
- 1505.1 General.
- 1505.2 Permit.
- 1505.3 System Changes.
- 1505.4 Connections to Potable or Recycled Water
- 1505.5 Water Pressure.
- 1505.6 Initial Cross-Connection Test.
- 1505.7 Recycled Water
- 1505.8 Recycled Water
- 1505.9 Valves.
- 1505.13 Signage
- 1505.14 Inspection and Testing.
- 1505.10 Hose Bibbs.
- 1505.11 Required Appurtenances.
- 1505.12 Pipe Separation in Trenches
- 1505.15 Minimum Water Quality Requirements for Reclaimed (Recycled) Water.
- 1505.16 Maintenance and Inspection.
- 1506.1 General.
- 1506.2 Plumbing Plan Submission.
- 1506.3 System Changes.
- 1506.4 Connections to Potable or Recycled Water
- 1506.5 Water Pressure.
- 1506.11 Valves.
- 1506.12 Signs.
- 1506.13 Inspection and Testing.
- 1506.6 Initial Cross-Connection Test.
- 1506.7 On-Site Treated Nonpotable
- 1506.8 On-Site Treated Nonpotable
- 1506.9 On-Site Treated Nonpotable
- 1506.10 Design and Installation.
▸Chapter 16 — NONPOTABLE RAINWATER CATCHMENT SYSTEMS
Overview- 1601.1 Applicability.
- 1601.2 System Design.
- 1601.3 Permit.
- 1601.4 Component Identification.
- 1601.5 Maintenance and Inspection.
- 1601.6 Operation and Maintenance Manual.
- 1601.7 Minimum Water Quality Requirements.
- 1601.8 Material Compatibility.
- 1601.9 System Controls.
- 1601.10 Separation Requirements.
- 1601.11 Abandonment.
- 1601.12 Sizing.
- 1602.1 General.
- 1602.2 Plumbing Plan Submission.
- 1602.3 System Changes.
- 1602.4 Connections to Potable or Reclaimed (Recy-cled) Water Systems.
- 1602.5 Initial Cross-Connection Test.
- 1602.6 Sizing.
- 1602.7 Rainwater Catchment System Materials.
- 1602.8 Rainwater Catchment System Color and
- 1603.4 Minimum Water Quality.
- 1602.9 Deactivation and Drainage for Cross-Connec-
- 1603.1 Rainwater Catchment Systems.
- 1603.2 Outside Hose Bibbs.
- 1603.5 Rainwater Storage Tanks.
- 1603.6 Location.
- 1603.7 Above Grade.
- 1603.9 Drainage and Overflow.
- 1603.10 Opening and Access Protection.
- 1603.11 Marking.
- 1603.12 Storage Tank Venting.
- 1603.13 Pumps.
- 1605.1 General.
- 1605.2 Supply System Inspection and Test.
- 1605.3 Cross-Connection Inspection and Testing.
- 1603.14 Roof Drains.
- 1603.15 Water Quality Devices and Equipment.
- 1603.16 Freeze Protection.
- 1603.17 Debris Removal.
- 1603.18 Required Filters.
- 1603.19 Roof Gutters.
- 1603.20 Rainwater Diversion Valves.
- 1604.1 General.
- 1604.2 Commercial, Industrial, Institutional
- 1604.3 Equipment Room Signs.
▸Chapter 17 — REFERENCED STANDARDS
- Appendix A — RECOMMENDED RULES FOR SIZING THE WATER SUPPLY SYSTEM
- Appendix B — EXPLANATORY NOTES ON COMBINATION WASTE AND VENT SYSTEMS
- Appendix C — ALTERNATE PLUMBING SYSTEMS
- Appendix D — SIZING STORM WATER DRAINAGE SYSTEMS
- Appendix E — MANUFACTURED/MOBILE HOME PARKS AND RECREATIONAL VEHICLE PARKS
- Appendix F — FIREFIGHTER BREATHING AIR REPLENISHMENT SYSTEMS
- Appendix G — SIZING OF VENTING SYSTEMS
- Appendix H — PRIVATE SEWAGE DISPOSAL SYSTEMS
- Appendix J — COMBINATION OF INDOOR AND OUTDOOR COMBUSTION AND VENTILATION OPENING DESIGN
- Appendix K — POTABLE RAINWATER CATCHMENT SYSTEMS
- Appendix L — SUSTAINABLE PRACTICES
- Appendix M — PEAK WATER DEMAND CALCULATOR
- Appendix N — IMPACT OF WATER TEMPERATURE ON THE POTENTIAL FOR SCALDING AND LEGIONELLA GROWTH
- Appendix O — NON-SEWERED SANITATION SYSTEMS
- Appendix P — PROFESSIONAL QUALIFICATIONS
- Appendix Q — INDOOR HORTICULTURAL FACILITIES
- Appendix R — TINY HOUSES