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AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

Self-Assess
Australia and New Zealand
vAS/NZS 3500.1:2021, fourth edition, published 28 May 2021 (Amendment No. 1 exists); superseded by AS/NZS 3500.1:2025 in NCC 2025 Volume Three
17 domains
73 controls

The Australian and New Zealand plumbing standard for cold and non-drinking water services: materials, pipe sizing, pressure and velocity limits, cross-connection control and backflow devices, installation and separation from other services, tanks, recycled and rainwater systems, flushing, pumps, meters, testing and disinfection.

Verified

AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services is a compliance framework from Australia and New Zealand with 17 domains and 73 controls. The largest domains are Section 5: Installation of cold water services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services (21 controls), Section 4: Cross-connection control and backflow prevention – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services (10 controls), Section 2: Materials and products – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services (7 controls). Every control below carries what it requires and what an assessor expects to see.

Maintained by Gerard Blokdyk

Framework summaries on this platform are AI-assisted interpretations for educational and compliance planning purposes. They do not reproduce or replace the official standards. Refer to the authoritative source for the definitive text. Framework names and trademarks belong to their respective organisations.

Framework Domains (17)

Section 10: Treated greywater services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

1 controls
Controls in the Section 10: Treated greywater services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 1 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::1010 Treated greywater services

Section 11: Water for sanitary flushing – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

6 controls
Controls in the Section 11: Water for sanitary flushing – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 6 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::11.2-11.311.2 and 11.3 Sanitary flushing supply and water closets
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::11.411.4 Urinals
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::11.511.5 Installation of cisterns
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::11.611.6 Flush valves supplied from break tanks
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::11.7-11.811.7 and 11.8 Flush pipes, water distribution and pressure ratio valves
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::11.911.9 Flush valves connected to the drinking water service

Section 12: Pumps – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

1 controls
Controls in the Section 12: Pumps – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 1 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::1212 Pumps

Section 13: Water requirements for haemodialysis machines – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

1 controls
Controls in the Section 13: Water requirements for haemodialysis machines – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 1 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::1313 Water supply to haemodialysis machines

Section 14: Property water meters – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

1 controls
Controls in the Section 14: Property water meters – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 1 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::1414 Property water meters

Section 15: Water supply from rainwater tanks – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

1 controls
Controls in the Section 15: Water supply from rainwater tanks – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 1 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::1515 Water supply from rainwater tanks

Section 16: Multi-unit developments – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

1 controls
Controls in the Section 16: Multi-unit developments – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 1 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::1616 Multi-unit developments

Section 17: Testing and commissioning – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

2 controls
Controls in the Section 17: Testing and commissioning – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 2 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::17.2-17.317.2 and 17.3 Flushing and hydrostatic testing
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::17.4-17.617.4 to 17.6 Cleaning, disinfection and commissioning

Section 2: Materials and products – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

7 controls
Controls in the Section 2: Materials and products – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 7 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::2.22.2 Materials and products fit for purpose
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::2.32.3 General limitations on pipes and fittings
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::2.42.4 Metallic pipes and fittings
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::2.52.5 Plastics pipes and fittings
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::2.62.6 Safe-tray materials
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::2.72.7 Joints: flanges, seals, brazing alloys, solvent cement and filler rods
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::2.82.8 Miscellaneous materials: concrete, mortar, water, timber, coatings, marking tape

Section 3: Sizing of water services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

4 controls
Controls in the Section 3: Sizing of water services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 4 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::3.23.2 Flow requirements: flow rates, loading units and simultaneous demand
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::3.33.3 Pressure requirements
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::3.43.4 Velocity requirements
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::3.53.5 Pipe size limitations: water service and branch offtakes

Section 4: Cross-connection control and backflow prevention – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

10 controls
Controls in the Section 4: Cross-connection control and backflow prevention – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 10 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.24.2 Protection of water supplies
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.34.3 Cross-connection hazard rating
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.4.14.4.1 Provision of backflow prevention devices (individual, zone and containment)
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.4.34.4.3 Hose taps near zone-protected areas
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.4.54.4.5 Water downstream of a backflow prevention device
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.4.64.4.6 Commissioning and maintenance program for testable devices
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.54.5 Suitability of devices for hazards
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.6.14.6.1 General installation requirements for backflow devices
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.6.24.6.2 Location, accessibility and drainage of backflow devices
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::4.6.34.6.3 Specific installation requirements for testable and non-testable devices

Section 5: Installation of cold water services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

21 controls
Controls in the Section 5: Installation of cold water services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 21 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.105.10 Depth of cover
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.115.11 Bedding and backfill
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.125.12 Installation in contaminated areas
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.135.13 Corrosive areas
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.145.14 Pipes in water-charged or filled ground
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.155.15 Open channels or watercourses
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.165.16 Private easements
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.175.17 Dry services
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.185.18 Protection against freezing
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.195.19 Identification of piping
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.25.2 Installation of pipes and fittings by material
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.205.20 Temperature control devices
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.215.21 Australian bushfire prone areas
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.3.25.3.2 Separation from above-ground services
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.3.35.3.3 Separation from below-ground services
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.45.4 Isolating valves
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.55.5 Location of piping: concealed, in chases and ducts, under slabs
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.65.6 Methods of jointing
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.75.7 Support and fixing above ground
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.85.8 Standpipes
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::5.95.9 Anchorage below ground: thrust blocks

Section 6: Fire services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

2 controls
Controls in the Section 6: Fire services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 2 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::6.2-6.36.2 and 6.3 Fire services: materials, products and installation
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::6.4-6.56.4 and 6.5 Fire service water storage tanks and identification

Section 7: Irrigation and lawn watering systems – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

2 controls
Controls in the Section 7: Irrigation and lawn watering systems – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 2 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::7.2-7.37.2 and 7.3 Irrigation system types and backflow protection
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::7.47.4 Irrigation materials

Section 8: Water storage tanks – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

6 controls
Controls in the Section 8: Water storage tanks – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 6 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::8.28.2 Purpose of tanks and limitations on use
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::8.38.3 Tank design and installation: support, access, placement
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::8.48.4 Tank design: corrosion protection, covers and overflows
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::8.5-8.68.5 and 8.6 Tank inlet and outlet piping
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::8.7-8.88.7 and 8.8 Sludge valves and safe-trays
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::8.98.9 Marking of tanks

Section 9: Non-drinking water services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

6 controls
Controls in the Section 9: Non-drinking water services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 6 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::9.29.2 Non-drinking water materials, products and meters
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::9.39.3 Non-drinking water installation and proximity to other services
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::9.49.4 Non-drinking water cross-connection control
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::9.59.5 Temporary bypass
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::9.6-9.79.6 and 9.7 Identification of non-drinking pipework and outlets
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::9.89.8 Testing and commissioning a non-drinking water service

Status, scope and application – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services

1 controls
Controls in the Status, scope and application – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services domain of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services — 1 controls
CodeTitle
as-nzs-3500-1-2021-plumbing-and-drainage-water-services::1.61.6 Equivalent pipe sizes

What is AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services and who does it apply to?

AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services is a compliance framework from Australia and New Zealand with 17 domains and 73 controls. The Australian and New Zealand plumbing standard for cold and non-drinking water services: materials, pipe sizing, pressure and velocity limits, cross-connection control and backflow devices, installation and separation from other services, tanks, recycled and rainwater systems, flushing, pumps, meters, testing and disinfection. It is used by organisations to establish and maintain compliance with industry standards and regulatory requirements.

What does AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services actually require?

AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services has 73 controls organised across 17 domains. The largest domains are Section 5: Installation of cold water services – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services (21 controls), Section 4: Cross-connection control and backflow prevention – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services (10 controls), Section 2: Materials and products – AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services (7 controls). Each control defines specific requirements that organisations must implement to achieve compliance.

If I already comply with another framework, how much of AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services do I already cover?

AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services does not currently have cross-framework mappings in our system. Check back as we continuously expand our mapping database.

How do I implement AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services?

Start your AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services compliance journey by running a self-assessment on our platform to identify your current compliance posture. Our AI advisory can answer specific questions about AS/NZS 3500.1:2021 Plumbing and Drainage - Water Services requirements, and cross-framework mapping helps you leverage existing controls from other frameworks you may already comply with. Create a free account to access all 73 controls and track your progress.

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