Check the Schedule of Products
Find the product type, application and required specification. Review relevant notes, exclusions and Lead Free requirements.
Open the product schedule (opens in a new tab)Plumbing & drainage product certification
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
Not every plumbing or drainage product requires certification. Start with its intended use and the ABCB schedules—not the product name alone.
Find the product type, application and required specification. Review relevant notes, exclusions and Lead Free requirements.
Open the product schedule (opens in a new tab)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)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)An unlisted product is not automatically exempt. CSi can assess the pathway; a new or amended specification may require ABCB approval.
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?
Make informed decisions about your certification investment. We explain what needs assessment, what evidence can be considered and what maintaining certification involves.
A defined scope and evidence requirements help you organise your application and identify gaps early.
Technical assessment, manufacturing review and impartial decisions provide a documented basis for certification.
Understand surveillance, product changes and renewal obligations as part of the whole certification investment.
Your certification pathway
The work is tailored to your product and the applicable scheme requirements. CSi explains what is needed at each stage.

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.
Submit your application, model details, drawings, material information, installation instructions, existing test reports and product quality plan. CSi identifies any additional information needed.
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.
The completed evaluation and corrective actions are reviewed before an independent, impartial certification decision. Applying does not guarantee certification.
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.
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.
Check the product. Check the marking.Lead Free WaterMark certification with CSi
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.
Think beyond one market
Discuss your intended markets at the outset. Product scope and conditions matter on both sides of the Tasman.
Australia
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
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
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.
The scheme’s operating framework, rules, agreements and requirements for product evaluation and certification.
Access the Manual on ABCB (opens in a new tab)Products requiring WaterMark certification, their scope of application and the specifications against which they are assessed.
Access the Product Schedule on ABCB (opens in a new tab)Products excluded from WaterMark certification. Exclusion does not remove other applicable requirements or the need for evidence of suitability.
Access the Excluded Schedule on ABCB (opens in a new tab)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
Review these CSi documents alongside the ABCB requirements above. Downloads are uncontrolled copies; confirm the applicable controlled revisions with CSi before applying.
What to prepare and what happens during assessment.
PAS-011-WM · Issue 1, Revision 2Read PDF : Certification process guide (opens in a new tab)Product evaluation, manufacturing controls and ongoing responsibilities.
PAS-007-WM · Issue 1, Revision 4Read PDF : Rules & requirements (opens in a new tab)How to use certification documents and the WaterMark correctly.
PAS-008-WM · Issue 1, Revision 3Read PDF : Certificate & trade mark use (opens in a new tab)Service terms, responsibilities, complaints and appeal arrangements.
PAS-009-WM · Issue 1, Revision 3Read PDF : Terms, conditions & appeals (opens in a new tab)Ready to apply?
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 documentYour questions, answered
Practical answers for manufacturers, importers and suppliers.
WaterMark and WELS explained (opens in a new tab)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.
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.
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.
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.
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.
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.
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.
Search the official WaterMark Product Database. Match the licence holder, model, specification, current status and scope—not just the logo.
Start with a conversation
Tell CSi what you manufacture or supply, and where you want to take it.