Scope of DWD - what is in it.

 Lets start with the basics:  According to Article 11 of Directive (EU) 2020/2184: materials that are intended to be used in new installations or, in case of repair works or reconstruction, in existing installations for the abstraction, treatment, storage or distribution of water intended for human consumption and that come into contact with such water have to comply with the requirements as laid down in the Directive.  

 Thus the recast Drinking Water Directive (EU) 2020/2184 sets out EU-wide rules to ensure safe, clean water for human consumption. For manufacturers and suppliers, there is of course one key question: 

 Does the Directive apply to my product or not? 

 With the recast DWD, this system is being replaced by a single harmonised framework under Article 11. For the first time, Europe has a unified approach: the same Positive Lists, the same testing rules (CID 2024/368), and the same conformity assessment procedures (CDR 2024/370 and 371) across all Member States. But a key question for manufacturers remains: where does the Directive actually apply, and where does it not? 

 The official ECHA Guidance on the scope and application of the Drinking Water Directive explains that the scope is both broad — covering the whole supply chain from water abstraction to building installations — and targeted, with some areas deliberately excluded to avoid overlap with other EU legislation. 

Where the DWD Applies

Water for Human Consumption

 The Directive applies to all water used for drinking, cooking, food preparation, or other domestic purposes, regardless of source or delivery method. This includes water from distribution systems, tankers, bottles, or containers. 

Materials and Products in Contact with Water

 Article 11 makes clear that  any product or material intended to come into contact with drinking water  is in scope. Examples include: 

• Pipes, fittings, and valves in distribution systems.
• Taps, mixers, and sanitary appliances in homes and public buildings.
• Tanks, reservoirs, and protective linings.
• Coatings, sealants, adhesives, gaskets, and membranes.
• Assembled products consisting of several components.

 The guidance is explicit that every material in permanent or long-term contact must comply — even adhesives, sealants, or small fixing components. 

Building Installations

 The DWD extends into building-level installations, meaning that plumbing components inside houses, offices, and public buildings also fall under Article 11. 

Site-applied products such as on-site tank linings or repair coatings are included in DWD.
However, because each application cannot undergo its own full conformity assessment, Member States may accept intermediate product certificates (e.g., cement mixture certificates) and may define additional national testing requirements.

Where the DWD Does Not Apply

 Despite its broad reach, the Directive contains specific exclusions: 

• Food Contact Materials (FCMs)

  Materials under the Food Contact Materials Regulation (EC) 1935/2004 are excluded when used solely for food processing. Example: The water pathway inside a coffee machine is considered an FCM and not regulated under Article 11.

• Treatment Chemicals and Filter Media

  Article 12 excludes treatment chemicals and filter media from the EU system. Examples: ion exchange resins, sacrificial anodes, filter membranes. The housing, seals, O-rings, and adhesives of such products do fall under Article 11.

• Temporary Processing Aids

  Lubricants, machining oils, and production aids are excluded if fully removed before the product enters service.

• Non-drinking Applications

  Products exclusively for industrial water or irrigation are not covered unless they are directly connected to a drinking water system.

• Post-tap Products

  Bottles, containers, kettles, cooking pots, and kitchen sinks are not Article 11 products; they fall under food contact rules instead.

Borderline Cases

The ECHA guidance acknowledges several grey areas:

• Household Appliances

  Appliances such as dishwashers or ice makers are not certified as a whole under Article 11. However, individual parts in permanent contact with drinking water (e.g. hoses, valves, inlet pipes) may be in scope if they are also used to supply drinking water.

• Spare Parts

  Spare parts for products placed on the market before 31 December 2026 may continue to be used under national rules until 2032, provided they do not deteriorate water quality.

• Combined Systems

  In systems combining mechanical components with filter media, only the mechanical components fall under Article 11. The media itself remains under national Article 12 rules — but the assembled product (e.g. a filter housing + media) is still considered an Article 11 product.

Material Producers and Pre-Products – Why It Still Matters

Pre-products, intermediate products, and constituent products are not classified as final materials. As a result, they are not covered by DWD and cannot carry the EU Drinking Water Mark under 2024/371.

But here’s the important point: NB guidance explains that these materials can still be tested and certified based on final material test pieces. While voluntary, this certification acts as a pre-assessment that greatly simplifies conformity assessment for downstream manufacturers.

For example:

• A polymer resin producer who tests their granulate according to Regulation 2024/368 significantly simplifies compliance for pipe manufacturers.
• A brass billet supplier holding a pre-product certificate allows fitting manufacturers to rely on that evidence rather than commissioning duplicate migration tests.

The guidance even  recommends that notified bodies recognise such certificates , provided that:

• Testing follows 2024/368.
• The test piece production is audited by an official Notified Body.
• The certificate is issued by a Notified Body.

For material suppliers, voluntary certification of pre-products is not just a compliance step — it is a market advantage. It demonstrates readiness for EU Article 11 and reduces the compliance burden for your customers, making your product far more attractive in EU supply chains.

Key Takeaways

• The DWD applies broadly to  all materials and products in permanent or long-term contact with water for human consumption.
• Exclusions exist for  treatment chemicals, filter media, FCMs, temporary processing aids, and non-drinking water systems.
• Grey zones — appliances, spare parts, combined systems — require careful case-by-case assessment. Pre-product suppliers are not legally required to obtain Article 11 certification, but voluntary certification is strongly recommended to support downstream manufacturers and improve competitiveness.

The scope is broad but not unlimited — understanding the boundaries helps you focus compliance efforts where they matter most.