EU DWD Drinking Water Regulation

I. Implementation Timeline

◆Jan 1, 2027: New regulations take effect (subject to possible delay)

◆Dec 31, 2032: Transition period ends, with full implementation across all EU member states

II. Material Compliance Requirements

(1). Non-metallic materials

◆Formulation reviews must comply with the EU Positive List (EU2024/367)

◆Testing standards similar to German KTW-BWGL

New chlorine-containing water extraction test

(2). Metal Materials

◆Use metal grades and composition standards listed in the EU Positive List (EU2024/367)

◆Copper alloys such as CW617N/CW511L have been removed from the EU Positive List (EU2024/367)

◆German exception: Use of CW511L-DW low lead (lead <0.1%) is permitted, with future inclusion in the EU Positive List (EU2024/367) anticipated

III. Recommendations for Businesses

(1). Metal Materials

German Market:

◆After January 2028: Commonly used metal materials such as CW617N/CW511L (lead <0.2%) may no longer be included in products newly installed in water supply systems;

◆Updates and applications for DVGW and KTW-BWGL certificates should consider new alternative metal grades;

Other EU Countries: 

◆The 4MS metal grades will continue to be used; new European certification applications can be considered to gradually replace non-listed materials such as CW617N; 

◆Existing certificates can consider alternative metal grades, but the impact on product certification certificates such as DVGW/CSTB/KIWA must be evaluated; 

Recommended alternative materials: 

-1- European standard stainless steel (1.4301/1.4404)

-2- Brass (CW024A) 

-3- CW511L-DWlowlead (lead <0.1%) 

-4- Or other EU positive list component grades 

(2). Non-metallic materials 

◆DWD formulation review and testing can be conducted in advance 

◆Official DWD certification will be issued after 2027 (currently no authorized certification body)