Kiwa DWD Consortium: cost-effective and secure DWD registration for EU drinking water applications

The Kiwa DWD Consortium is a collaboration of manufacturers of substances, materials and final products that come into contact with drinking water. Participants work together to maintain compliance under the EU Drinking Water Directive (DWD). Kiwa coordinates the process: from identifying relevant substances and participants, through data collection and dossier preparation, to final registration via the ECHA IUCLID system. This structured approach allows participants to share costs and risks, protect confidential information, and comply with the regulation more efficiently.

The Kiwa DWD Consortium helps companies work together in a practical and confidential way to support substance registration under the EU Drinking Water Directive. By joining forces, participants can reduce risk, share costs and avoid duplication of effort.

If your substance or material is linked to the EU Positive List, expiry can have a direct impact on your market access. Re-registration is not just an administrative task. It can involve major data gathering, toxicological assessment, dossier preparation and submission through the ECHA IUCLID system. The source material also notes that, in a worst-case scenario, toxicological testing costs can prove to be extremely costly.

For many companies, the challenge is not only the cost. It is also the question of how to protect confidential information, avoid free riders and ensure that the burden is shared fairly across interested parties.

Companies that act alone often face unnecessary cost, complexity and uncertainty. You want to avoid:

• Disclosure of confidential information
• Paying the full cost yourself
• Free riders benefiting from your investment
• Unexpected surprises, such as restrictions or bans affecting your substances or materials

A coordinated and harmonized approach offers a more efficient route forward.

Kiwa has developed the DWD Consortium to support manufacturers that need to keep substances and materials on the EU market for drinking water applications. The consortium approach is designed to be honest, harmonized and practical.

Our service includes:

• Inventory of substance users
• Anonymous participation for raw material manufacturers and product manufacturers
• Preparation of the submission dossier
• Registration of dossiers via the ECHA IUCLID system

This allows participants to contribute to the registration process while remaining anonymous where needed.

Kiwa combines regulatory understanding with practical support for the drinking water sector. Through the DWD Consortium, we help companies:

✓ Protect confidential business information

✓ Spread costs across multiple participants

✓ Reduce the risk of non-registration

✓ Streamline dossier creation and submission

✓ Stay prepared for upcoming EU Positive List deadlines

By coordinating the process centrally, Kiwa helps participants save time, reduce uncertainty and improve the quality of the submission.

The Kiwa DWD Consortium is relevant for:

• Substance manufacturers
• Raw material manufacturers
• Final product manufacturers

If your business depends on substances or materials that must remain compliant for drinking water applications in the EU, early action is essential.