Current developments in category 3 data
The Dutch Environmental Database is responsible for preparing and maintaining category 3 environmental declarations for both Civil Engineering (GWW) and Buildings & Infrastructure (B&U). On this page, you can read about the latest developments and the schedule for quality improvements.
Current status
Category 3 environmental declarations form an essential foundation for environmental performance calculations in construction. It is therefore crucial that these declarations remain consistent and up to date.
Over the past years, the Dutch Environmental Database has carried out large-scale quality improvements for Civil Engineering (GWW) data, updating and strengthening many background reports and environmental declarations. For Buildings & Infrastructure (B&U), the first phase of quality improvement has begun, with new background reports and environmental declarations being prepared for each element.
However, the work is not yet complete. Some GWW reports are now several years old and require revision, while many B&U elements still lack reports. In 2025 and 2026, the Dutch Environmental Database will take further steps to enhance the quality, coverage, and currency of category 3 data.
Schedule and status
The tables below show the current status and planning of updates. For B&U, publication may be postponed if a data change significantly impacts compliance with the environmental performance requirement (MPG). In such cases, the Dutch Environmental Database will decide, in consultation with the Ministry of the Interior and Kingdom Relations (BZK), when the relevant data will be published.
Updated on february 12 2026
| Onderdeel/elementen B&U | Status | Publicatie datum |
|---|---|---|
| 13 en 23 Vloeren 32 Binnenwandopeningen |
Gepubliceerd | 30 juli 2025 |
| 61 PV panelen | Gepubliceerd | 11 november 2025 |
| 56 Warmtepompen | Gepubliceerd | 19 december 2025 |
| 53 Boilers en buffervaten | Gepubliceerd |
19 december 2025 |
| Isolatiematerialen | Lopend | Q1-Q2 2026 |
| Biobased plaatmaterialen en composiet | Gepubliceerd | 30 januari 2026 |
| 56 Afgiftesystemen 66 Liften |
Lopend |
Q1-Q2 2026 |
| 16 Funderingsconstructies 17 Paalfunderingen 28 Hoofddraagconstructies 21 Buitenwanden 41 Buitenwandafwerkingen 31 Buitenwandopeningen 27 Daken 47 Dakafwerkingen 37 Dakopeningen 55 Koude-opwekking 56 Warmte-opwekking 57 Luchtbehandeling 61 Centrale elektrotechnische voorzieningen Energiedragers |
Lopend | Q1-Q2 2026 |
| 22 Binnenwanden 42 Binnenwandafwerkingen 45 Plafondafwerkingen 43 Vloerafwerkingen 33 Vloeropeningen 38 Inbouwpakketten 24 Trappen en hellingen 34 Balustrades en leuningen 11 Bodemvoorzieningen; grond 62 Energievoorzieningapparatuur (laadpalen infrastructuur) Overig (restpercelen) |
Lopend | Q2 2026 |
| Onderdeel/elementen GWW | Status | Publicatiedatum |
|---|---|---|
| H33 Afschermingsvoorzieningen H52 Kust- en oeverwerken H53 Remming-, aanleg-, en afmeerwerken H41 Funderingsconstructies: Damwanden staal H61 Werken van algemene aard (tijdelijk) |
Lopend | Begin 2026 |
| H47 Kunstwerken | Lopend | Begin 2026 |
| H22 Grondwerken H51 Groenvoorzieningen H64 Faunavoorzieningen H71 Speeltoestellen |
Lopend | Begin 2026 |
| H34 Verlichting H35.4 Bovengrondse voorzieningen H90 en H91 GWW installaties |
Lopend | Begin 2026 |
| H25 Leidingwerken H83 Elementenverharding |
Lopend | Begin 2026 |
| H80 Funderingslagen H81 Bitumineuzeverhardingen |
Afgerond | Q4 2025 |
| H32 Wegbebakening en bebording en bewegwijzering | Lopend | Begin 2026 |
| H17 Verontreinigde grond en verontreinigd water H99 Voegovergangen |
Start binnenkort | Q2 2026 |
| H99.9: Biobased (weg)meubilair | Lopend | Begin 2026 |
Excel list of new and deactivated environmental declarations
The Dutch Environmental Database periodically publishes an overview of new and deactivated environmental declarations within category 3 data.
The lists for both Buildings & Infrastructure (B&U) and Civil Engineering (GWW) will be added soon. Once available, you can download them here.
Excluded products
The Dutch Environmental Database continuously works to improve category 3 data, including assessing whether new products should be added to the Dutch Environmental Database.
In some cases, however, a deliberate decision is made not to prepare an environmental declaration for a specific product. This may be due to several reasons, such as:
- The product is used on a very small scale.
- There is insufficient reliable environmental data available.
- The product falls outside the scope of the current Environmental Performance Assessment Method for Construction Works.
In recent background reports, the Dutch Environmental Database includes an overview of these excluded products, along with the reasoning. Once this list is available, it will be published on this page.
Relevante nieuwsberichten
