Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
The Plumbing Code of Australia, 2025 edition: Performance Requirements and Deemed-to-Satisfy routes for cold, heated, non-drinking, fire-fighting and rainwater services, cross-connection control, sanitary plumbing and drainage, on-site wastewater management, plumbing noise and facilities for people with disability, the evidence of suitability for plumbing products (WaterMark) and every State and Territory variation. Replaces NCC 2022 Volume Three as each jurisdiction adopts it.
Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) is a compliance framework from Australia (all States and Territories, through their plumbing and building legislation) with 14 domains and 51 controls. The largest domains are Part B2: Heated water services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) (8 controls), Schedules 4 to 11: State and Territory variations and additions – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) (7 controls), Part B1: Cold water services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) (5 controls). Every control below carries what it requires and what an assessor expects to see.
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Framework Domains (14)
Part B1: Cold water services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B1P1 | B1P1 Connect every cold water service to a drinking water supply |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B1P2 | B1P2 Keep cold water velocity within limits |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B1P3-B1P4 | B1P3 and B1P4 Provide access to, and isolation of, cold water components |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B1P5 | B1P5 Use drinking water efficiently: flow rates and flush volumes |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B1P6-B1P7 | B1P6 and B1P7 Deliver cold water at suitable pressure and avoid uncontrolled discharge |
Part B2: Heated water services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B2P1-B2P2 | B2P1 and B2P2 Supply heated water from a drinking supply and deliver it at a temperature unlikely to scald |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B2P11-B2P12 | B2P11 and B2P12 Avoid uncontrolled discharge and limit tap flow rates on heated water |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B2P3 | B2P3 Keep heated water velocity within limits |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B2P4-B2P5 | B2P4 and B2P5 Provide access to, and isolation of, heated water components |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B2P6 | B2P6 Relieve pressure and limit temperature in heated water containers |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B2P7 | B2P7 Control Legionella in heated water systems |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B2P8 | B2P8 Use energy and water efficiently in the heated water service |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B2P9-B2P10 | B2P9 and B2P10 Provide heated water at suitable temperature and pressure |
Part B3: Non-drinking water services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B3P1-B3P2 | B3P1 and B3P2 Keep non-drinking water separate from drinking water and identify it |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B3P3-B3P5 | B3P3 to B3P5 Limit velocity in non-drinking water pipework and provide access and isolation |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B3P6-B3P7 | B3P6 and B3P7 Deliver non-drinking water at suitable pressure and avoid uncontrolled discharge |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B3P8 | B3P8 Use non-drinking water efficiently where it flushes toilets or urinals |
Part B4: Fire-fighting water services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B4P1 | B4P1 Supply fire-fighting equipment with adequate flow and pressure |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B4P2-B4P3 | B4P2 and B4P3 Provide access, isolation and flow test drainage for fire-fighting services |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B4P4-B4P5 | B4P4 and B4P5 Size fire-fighting water storage for the risk and avoid uncontrolled discharge |
Part B5: Cross-connection control – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B5P1 | B5P1 Design and install water services to avoid contamination |
Part B6: Rainwater services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B6P1-B6P2 | B6P1 and B6P2 Deliver rainwater at suitable pressure and limit velocity |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B6P3 | B6P3 Use rainwater efficiently where it flushes toilets or urinals |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B6P4-B6P7 | B6P4 to B6P7 Provide access and isolation, identify rainwater pipework and outlets, and avoid uncontrolled discharge |
Part B7: Rainwater storage – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B7P1-B7P2 | B7P1 and B7P2 Store rainwater to avoid contamination and uncontrolled discharge |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::B7P3-B7P5 | B7P3 to B7P5 Provide access and isolation to rainwater storage and identify non-drinking tanks |
Part C1: Sanitary plumbing systems – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C1P1-C1P2 | C1P1 and C1P2 Convey sewage and sullage to an approved disposal point and provide access |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C1P3-C1P4 | C1P3 and C1P4 Use water efficiently in sanitary plumbing and avoid uncontrolled discharge |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C1P5 | C1P5 Ventilate sanitary plumbing to prevent hydraulic imbalance |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C1P6-C1P7 | C1P6 and C1P7 Keep foul gas and water out of buildings and protect sanitary plumbing from damage |
Part C2: Sanitary drainage systems – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C2P1 | C2P1 Convey sewage through sanitary drainage to an approved disposal system |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C2P2 | C2P2 Drain swimming pools without causing illness or affecting other property |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C2P3-C2P4 | C2P3 and C2P4 Provide access to, and ventilation of, sanitary drainage |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C2P5 | C2P5 Prevent contamination of and from sanitary drainage |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C2P6-C2P7 | C2P6 and C2P7 Avoid uncontrolled discharge and damage to and from the drainage system |
Part C3: On-site wastewater management – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C3P1-C3P2 | C3P1 and C3P2 Protect public health and the environment from on-site wastewater |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C3P3-C3P4 | C3P3 and C3P4 Protect community amenity and connect to a Network Utility Operator sewer on its terms |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C3P5 | C3P5 Design and build on-site systems with the right capacity, strength and materials |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C3P6 | C3P6 Keep land application systems contained, vented and protected |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::C3P7-C3P9 | C3P7 to C3P9 Provide access, avoid blockage or discharge and keep system identification readable |
Part D1: Excessive noise – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::D1P1-D1P2 | D1P1 and D1P2 Prevent undue and excessive noise from plumbing and drainage |
Part E1: Facilities – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::E1P1 | E1P1 Make supply taps and controls usable by people with disability |
Schedules 4 to 11: State and Territory variations and additions – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::NSW | New South Wales: water efficiency and energy under BASIX, Performance Solution and evidence text, and sanitary drainage damage |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::NT | Northern Territory: swimming pool drainage and noise provisions |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::QLD | Queensland: water closet efficiency for new dwellings, pipe pressure rating, and heated water clauses |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::SA | South Australia: heated water, cross-connection, rainwater and on-site wastewater variations |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::TAS | Tasmania: pressure, cold water tanks, rainwater storage, trade waste, heating and roof and surface drainage |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::VIC | Victoria: rainwater service, low risk trade waste, HVAC, roof and surface drainage, and combustible cladding limit |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::WA | Western Australia: maximum delivery temperature, temperature control devices and plumbing standard variations |
Section A: Governing requirements (plumbing) – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)
| Code | Title |
|---|---|
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::A2G1-A2G4 | A2G1 to A2G4 Choose a compliance pathway and document any Performance Solution |
| australia-national-construction-code-2025-volume-three-plumbing-code-of-australia::A5G4 | A5G4 Hold evidence of suitability for plumbing products and designs, including WaterMark and drinking water contact testing |
What is Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) and who does it apply to?
Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) is a compliance framework from Australia (all States and Territories, through their plumbing and building legislation) with 14 domains and 51 controls. The Plumbing Code of Australia, 2025 edition: Performance Requirements and Deemed-to-Satisfy routes for cold, heated, non-drinking, fire-fighting and rainwater services, cross-connection control, sanitary plumbing and drainage, on-site wastewater management, plumbing noise and facilities for people with disability, the evidence of suitability for plumbing products (WaterMark) and every State and Territory variation. Replaces NCC 2022 Volume Three as each jurisdiction adopts it. It is used by organisations to establish and maintain compliance with industry standards and regulatory requirements.
What does Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) actually require?
Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) has 51 controls organised across 14 domains. The largest domains are Part B2: Heated water services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) (8 controls), Schedules 4 to 11: State and Territory variations and additions – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) (7 controls), Part B1: Cold water services – Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) (5 controls). Each control defines specific requirements that organisations must implement to achieve compliance.
If I already comply with another framework, how much of Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) do I already cover?
Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia) does not currently have cross-framework mappings in our system. Check back as we continuously expand our mapping database.
How do I implement Australia National Construction Code 2025 Volume Three (Plumbing Code of Australia)?
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