By using the ECHA Industry Portal companies can indicate those substances that they wish to keep, add or remove from the European Positive Lists. The notifications under the Drinking Water Directive are prepared in the IUCLID format.

To help the notifiers prepare their notifications of intentions in IUCLID, ECHA has published:

• a manual on “How to prepare a Drinking Water Directive Notification of intention”;
• a guidance document dedicated to notifications of intention (DWD Guidance Volume IV); and
• a video tutorial on the generation of the notification of intention IUCLID dossier.

ECHA invites all impacted parties to familiarise themselves with the manual, guidance and tutorial before preparing their notifications.

After a notification of intention has been submitted, notifiers have 12 months to submit their application. From January 2027, notifiers can start submitting their applications to amend the European Positive Lists.