Mandatory documentation for category 3 data
Specific documentation is mandatory when registering category 3 data in the Dutch Environmental Database (NMD). This page explains which protocols and principles apply when compiling environmental declarations, so that the data in the NMD remains consistent and unambiguous.
Fixed protocols and starting points apply when compiling category 3 environmental declarations. This page describes which documentation is mandatory and how the process of compiling, entering and managing category 3 data works, so that the data in the Dutch Environmental Database remains consistent and unambiguous.
To safeguard the quality and comparability of category 3 environmental declarations, Stichting National Environmental Database (NMD) applies fixed protocols and principles. These ensure that the database remains structurally consistent and that all environmental declarations are prepared and managed in a uniform manner.
Inconsistent results can already arise in the initial steps of a Life Cycle Assessment (LCA). By applying fixed guidelines based on the Assessment Method Environmental Performance of Construction Works, these differences are prevented.
Uniform approach
In practice, category 3 environmental declarations are prepared by different parties, often using their own working methods or assumptions. Working with one uniform set of principles creates greater coherence between:
- the LCA inventory
- the background documentation
- the final environmental declaration in the Dutch Environmental Database
This approach improves data quality and results in more readable and mutually comparable reports.
The figure below shows the current process of preparing, entering and managing category 3 data:
Process for preparation and management
The image below shows the current process for preparing, entering and managing category 3 data.
Veelgestelde vragen over verplichte documentatie categorie 3 data Frequently asked questions about mandatory documentation for category 3 data
Category 3 environmental declarations are always compiled on behalf of Stichting NMD, following the applicable protocol for compiling and peer reviewing these declarations.
Inconsistent results can already arise in the first steps of a life cycle assessment. A single uniform set of starting points ensures consistency between the LCA inventory, the background documentation and the final environmental declaration.
Yes. Feedback and proposals for category 3 data can be submitted via the feedback page. Stichting NMD assesses whether feedback is incorporated.
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