Protocols for category 3 data
For a structurally consistent database, fixed principles are needed to prepare category 3 environmental declarations. Inconsistencies can arise at any process step, even while performing the LCA. By using fixed principles, inconsistent results can be avoided.
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.
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