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Water Efficiency Labelling and Standards Scheme

Water Efficiency Labelling and Standards Scheme: Requires registration and water rating labels for regulated water-using products sold in Australia

Maílis Carrilho
Written by Maílis Carrilho
Updated on September 6th, 2026

Summary

The Water Efficiency Labelling and Standards Scheme, or WELS, is Australia’s mandatory water efficiency labelling scheme for regulated products. All regulated products must be registered and labelled with correct water rating information before supply or sale in Australia. The scheme covers products such as taps, showers, toilets, urinals, clothes washing machines, dishwashers and flow controllers. Testing, rating, labelling and display requirements are detailed in AS/NZS 6400:2016. WELS is not a voluntary ecolabel for regulated products. It does not replace plumbing codes, product safety rules, WaterMark certification, consumer law or local water restrictions.

Details

Jurisdictions
  • Australia
Mandatory for

WELS is mandatory for regulated products supplied or sold in Australia.

Mandatory obligations include:

Product registration.

Testing and rating under applicable standards.

Correct water rating label.

Current label display.

Correct advertising information.

Compliance with regulated product requirements.

Deep dive

3 min read
Updated Sep 6, 2026

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What’s Required

1. Determine whether the product is regulated

WELS applies to specified water-use and water-saving products. Official guidance lists regulated product categories including taps, showers, clothes washing machines, dishwashers, toilets, urinals and flow controllers.

2. Register the product

All regulated products must be registered before they are supplied or sold in Australia. The public register distinguishes products whose registration is current and available for sale in Australia.

3. Test and rate the product

Water efficiency standards detail the criteria for testing, rating and labelling regulated products. Product testing, rating, labelling and display requirements are detailed in Australian/New Zealand Standard 6400:2016 Water efficient products, Rating and labelling.

4. Display the correct water rating label

When supplying or selling regulated products, companies must follow specific labelling requirements for products, packaging and advertising. The WELS label must be current.

The label includes:

  • Star rating.

  • Water consumption or flow information.

  • Product registration details.

  • Correct label format.

  • Display requirements for sale and advertising.

5. Maintain compliance

Suppliers must ensure product information, registration, label display, and advertising remain accurate.

Businesses should monitor:

  • Product changes.

  • Registration status.

  • Model numbers.

  • Label display.

  • Online advertising.

  • Packaging changes.

  • Current WELS standard requirements.

Important Deadlines

WELS is mandatory for regulated products in Australia.

Important timing points:

  • WELS was introduced in 2005 as Australia’s mandatory water-saving program.

  • Regulated products must be registered and correctly labelled before supply or sale in Australia.

  • Testing, rating, labelling and display requirements are detailed in AS/NZS 6400:2016.

  • Businesses should monitor current registration and labelling rules, especially for online sales and advertising.

Current Status

WELS is active and mandatory in Australia. Official guidance describes WELS as an Australian government initiative in partnership with state and territory governments, and the scheme is used to help consumers compare the water efficiency of regulated products.

Current status:

  • Active mandatory Australian scheme.

  • Covers regulated water-using products.

  • Requires registration and labelling.

  • Uses star ratings.

  • Technical requirements under AS/NZS 6400:2016.

  • Linked to Australia and New Zealand technical standards.

  • Relevant to manufacturers, importers, retailers, builders and consumers.

Penalties for Non-Compliance

Because WELS is statutory, non-compliance can trigger regulatory enforcement.

Possible consequences include:

1. Product sale restriction

Products may not be legally supplied or sold if they are regulated but not registered and correctly labelled.

2. Compliance action

The WELS regulator may take compliance and enforcement action under the WELS framework.

3. Corrective labeling

Businesses may need to correct product labels, packaging or advertising.

4. Market disruption

Non-compliant products may be removed from sale or delayed.

5. Reputational and buyer risk

Retailers, builders and consumers may lose trust in incorrect water-efficiency claims.

Examples of Known Violations / Failure Modes

Typical failure modes include:

  • Selling a regulated product without registration.

  • Using an outdated WELS label.

  • Incorrect star rating.

  • Incorrect water consumption information.

  • Advertising without required WELS information.

  • Treating WELS as voluntary for regulated products.

  • Not updating labels after product changes.

  • Misunderstanding exemptions.

  • Confusing WELS with WaterSense.

  • Selling imported products without Australian registration.

  • Assuming New Zealand technical information automatically satisfies Australian registration.

Resources


Maílis Carrilho
Added by:
Maílis Carrilho
Sustainability Research Analyst
Maílis Carrilho is a Sustainability Research Analyst (Intern) at Net Zero Compare, contributing research and analysis on climate tech, carbon policies, and sustainable solutions. She supports the team in developing fact-based content and insights to help companies and readers navigate the evolving sustainability landscape.
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Added on Sep 8, 2026 by Maílis Carrilho · Updated on Sep 6, 2026