The GDV scheme

The GDV scheme is a fee funded approval scheme for building components in contact with drinking water where building components can be approved and certified for placement on the market and sale in Denmark.

NOTE: On July 1 2016, the Executive Order no. 1007 of 29 June 2016 took effect. Therefore, guidelines and templates are currently being revised.

About the GDV scheme

The approval scheme for building components in contact with drinking water covers only the health properties of building components, namely migration of harmful substances into drinking water.

The approval scheme is regulated by the Executive Order no. 1007 on the placement on the market and sale of building components that come into contact with drinking water.

The Danish Transport, Construction and Housing Authority is the regulatory authority for the approval scheme. As of January 1 2017, the GDV scheme has been transferred to the Danish Transport, Construction and Housing Authority and the former GDV Secretariat has been closed. The Danish Transport, Construction and Housing Authority are now managing the processing of applications for GDV approval. The Executive Order is under revision.

Read about the conditions of GDV approval, including which building components are covered by or exempt from approval in the scheme, and which building component can obtain a voluntary approval.

The Danish Environmental Protection Agency under The Ministry of Environment and Food advises the Danish Transport, Construction and Housing Authority on requirements, test basis and methods in order to ensure that the quality requirements for building components in contact with drinking water are fulfilled when the water reaches the taps of consumers.

Links to all relevant legislation is found in the box to the right.

The responsibility of the approval holder

The approval holder has a responsibility to ensure that building components, which are approved under the GDV scheme, meet the requirement to obtain an approval during the entire approval period and that the building component is labeled in accordance with the Executive Order on the placement on the market and sales of building components that come into contact with drinking water before the product is marketed and sold. For GDV approvals issued from July 1 2016 the labelling of the approved building component with the "drop" mark is voluntary.

The GDV scheme has become modernised

With the new Executive Order of 29 June 2016, the GDV scheme has been modernised in several areas:

  • The health-related requirements to plastic and elastomers in Annex 1, Table 1, of the Executive Order are considered to be met, if it is documented in the GDV application to the Authority that the building component or subcomponents therein are covered by: a German KTW certificate (Materialien in Kontakt mit Trinkwasser) and/or a German DVGW certificate and/or a Dutch ATA approval (Attest Toxicological Aspects)/Kiwa Water Mark. Note that for building components consisting of metal alloys there are still requirements of finished goods testing in the GDV scheme as stated in Appendix 1, table 2, of the Executive Order.
  • The GDV approval period is extended from 3 years to 5 years. This means that GDV approvals issued after July 1 2016 will be valid for 5 years (note that GDV approvals issued before July 1 2016 still have a 3 year approval period).
  • The so-called “Drop” mark has become voluntary and may be crafted with a digital mark.

Contact

The Danish Transport, Construction and Housing Authority can be contacted with questions on the rules for market and sale of building components in contact with drinking water.

For questions regarding applications submitted for GDV approval, please note to the application number in the subject line.

The Danish Transport, Construction and Housing Authority can be contacted via email: GDV@tbst.dk.

The Authority attempts to answer all inquiries in a timely manner. Due to the recent organisational changes, longer response times and processing of applications can unfortunately occur.

Updated: 14.08.2017