Plumbing & drainage product certification

WaterMark certification.
A clear path from product to market.

Know the requirements. Prepare the evidence. Move forward with a certification process you understand.

CSi helps manufacturers, importers and suppliers navigate WaterMark certification—from product eligibility to ongoing certification.

First, check the requirements

Does your product need WaterMark?

Not every plumbing or drainage product requires certification. Start with its intended use and the ABCB schedules—not the product name alone.

02

Check the excluded products

Exclusion from WaterMark does not remove other compliance obligations. Evidence of suitability may still be needed, and integral components may require their own certification.

Open the excluded schedule (opens in a new tab)
03

Understand the scheme rules

The ABCB Manual explains the scheme, evaluation, risk assessment and certification requirements. Relevant specifications and Notices of Direction also apply.

Read the WaterMark Manual (opens in a new tab)

Not listed—or not sure where your product fits?

An unlisted product is not automatically exempt. CSi can assess the pathway; a new or amended specification may require ABCB approval.

Ask CSi

These links open the official ABCB resources in a new tab, so you can check the current requirements rather than rely on an old downloaded copy.

Why work with CSi?

Clarity before you commit.
Support beyond certification.

Make informed decisions about your certification investment. We explain what needs assessment, what evidence can be considered and what maintaining certification involves.

Know what to prepare

A defined scope and evidence requirements help you organise your application and identify gaps early.

Confidence in the decision

Technical assessment, manufacturing review and impartial decisions provide a documented basis for certification.

Plan for the long term

Understand surveillance, product changes and renewal obligations as part of the whole certification investment.

Your certification pathway

Six stages.
One clear process.

The work is tailored to your product and the applicable scheme requirements. CSi explains what is needed at each stage.

Airvac technician monitoring a valve test bench
CSi client-site photograph: Airvac product testing. Shown as an example of testing activity, not a claim of WaterMark certification for the pictured products.
Prepare your application
  1. Start with your product

    Tell us what it does, where it is made and where you intend to supply it. We review eligibility, the proposed certification scope and the applicable specification.

  2. Apply and prepare the evidence

    Submit your application, model details, drawings, material information, installation instructions, existing test reports and product quality plan. CSi identifies any additional information needed.

  3. Testing and manufacturing assessment

    CSi reviews the technical evidence, agrees the required sampling and testing, and assesses manufacturing controls. Testing must meet the scheme’s requirements for recognised laboratories. Any nonconformities must be addressed.

  4. Independent review and decision

    The completed evaluation and corrective actions are reviewed before an independent, impartial certification decision. Applying does not guarantee certification.

  5. Licence, marking and listing

    Following a positive decision and completion of the required agreements, CSi issues the certification documentation, authorises the relevant marking and arranges the certified product listing on the WaterMark Product Database.

  6. Maintain your certification

    Ongoing surveillance, required testing and review of changes support continued conformity. Notify CSi before changes that may affect certification, and keep licence and renewal requirements up to date.

WaterMark Lead Free certification trade markCheck the product. Check the marking.

Lead Free WaterMark certification with CSi

CSi is approved to certify eligible products to the Lead Free WaterMark requirements.

CSi is listed by the ABCB as an approved WaterMark Conformity Assessment Body. WaterMark Conformity Assessment Bodies assess plumbing products and issue WaterMark and Lead Free WaterMark certification. Certification is granted only after the applicable product, testing, manufacturing and scheme requirements have been satisfactorily completed.

From 1 May 2026, the ABCB’s requirements call for Lead Free versions of identified products used in plumbing systems conveying drinking water. Check the Schedule of Products and the requirements applicable at the installation location.

“Lead Free” means a weighted average lead content of no more than 0.25% for the relevant product or material in contact with drinking water. It does not mean zero lead.

  • Ask CSi whether the Lead Free requirements apply to your product.
  • Prepare the required materials information, accredited test evidence and manufacturing controls.
  • Following certification, use the authorised Lead Free WaterMark and maintain ongoing surveillance requirements.
Confirm CSi on the ABCB approved WMCAB list (opens in a new tab)Read the ABCB Lead Free guidance (opens in a new tab)

Think beyond one market

Australian certification.
Explore the New Zealand opportunity.

Discuss your intended markets at the outset. Product scope and conditions matter on both sides of the Tasman.

Australia

Product evidence for plumbing and drainage

WaterMark is mandatory for specified plumbing and drainage products under the Plumbing Code of Australia. Certification addresses the product and requirements within its certified scope.

The product must still be suitable for the proposed installation. Applicable state and territory requirements, installation instructions and conditions must be followed.

How WaterMark certification works (opens in a new tab)

New Zealand

Recognition for eligible certified products

Selected WaterMark-certified products are recognised through MBIE’s Approved Products Certified Overseas pathway. Check that the current recognition notice identifies the relevant product certificate.

Recognition is subject to the notice’s scope, conditions and limitations. It is not automatic acceptance of every WaterMark product or every use. Include the notice, current certificate and relevant technical information with the building consent application.

Check MBIE’s current recognition notices (opens in a new tab)

Official scheme resources

ABCB WaterMark Scheme documents

Before applying, review these three documents published by the Australian Building Codes Board. Follow the links to the ABCB WaterMark website to read or download the published documents.

All three links open the official ABCB WaterMark website in a new tab. Check for updates and read the documents together with relevant specifications and Notices of Direction.

CSi applicant resources

Your documents.
All in one place.

Review these CSi documents alongside the ABCB requirements above. Downloads are uncontrolled copies; confirm the applicable controlled revisions with CSi before applying.

Ready to apply?

WaterMark application form

Download the Word form, complete the applicant and manufacturing details, and gather the product information requested. Contact CSi to confirm the submission arrangements and applicable fees.

PASF_025-WM · Issue 1, Revision 3 · Word document
Download application

A useful starting checklist

  • Product names, models, intended uses and target markets
  • Manufacturing locations and applicant–manufacturer relationship
  • Drawings, materials, existing test reports and instructions
  • Quality plan, manufacturing controls and proposed marking

Your questions, answered

Know what comes next.

Practical answers for manufacturers, importers and suppliers.

WaterMark and WELS explained (opens in a new tab)
How much does certification cost, and how long does it take?

The proposal depends on the product range, applicable specification, manufacturing locations, existing evidence and any additional testing or corrective action. CSi can explain the initial and ongoing costs after reviewing your product information. We do not promise a fixed completion date before understanding the assessment required.

Can products manufactured overseas be certified?

Yes. Manufacturing location alone does not determine eligibility. The product, manufacturing controls, access for assessment and ongoing arrangements must satisfy the scheme. Importers and suppliers need appropriate authority and cooperation from the manufacturer.

Can I use test reports I already have?

CSi reviews existing reports for relevance, laboratory recognition, the specification used and whether the tested samples represent the product being certified. Acceptance is not automatic; further testing may be needed. Send the complete reports with details of any product changes.

Can I transfer an existing WaterMark licence to CSi?

Contact CSi with the current licence, product schedule, test reports and latest manufacturing assessment information. Transfers are subject to review and the scheme’s transfer requirements. Do not assume that a transfer has occurred until it is confirmed.

Is WaterMark the same as WELS?

No. WaterMark is product certification for applicable plumbing and drainage requirements. WELS is a separate water-efficiency registration and labelling scheme. Some products require both; holding one does not replace the other.

What if my product, materials or factory change?

Tell CSi before implementing changes that could affect certified conformity. A change to a model, material, component, supplier or manufacturing site may need evaluation and updated documentation. Certification is not automatically extended to a new product or variant.

When can I put the WaterMark on my product?

Only after certification and authorisation, and only in accordance with the approved scope and marking requirements. The logo alone is not proof that a particular model is currently certified. Check the licence, product listing and any conditions or limitations.

Buying or specifying a certified product?

Search the official WaterMark Product Database. Match the licence holder, model, specification, current status and scope—not just the logo.

Check a WaterMark product (opens in a new tab)

Start with a conversation

Let’s clarify the requirements for your product.

Tell CSi what you manufacture or supply, and where you want to take it.