On 7 November 2025, the European Commission (Commission) issued calls for evidence on the EU Taxonomy Climate and Environmental Delegated Acts.

Whilst the Taxonomy Regulation establishes the general framework, the Commission specifies the technical screening criteria for determining whether an economic activity can qualify as environmentally sustainable through delegated acts. The Taxonomy Climate and Environmental Delegated Acts, adopted respectively in 2021 and 2023, specify the technical screening criteria for activities contributing to the six EU climate and environmental objectives: climate change mitigation, climate change adaptation, sustainable use and protection of water and marine resources, circular economy, pollution prevention and control, and biodiversity.

The core problem this initiative aims to tackle is that certain technical screening criteria set out in the Climate and Environmental Delegated Acts have proven difficult to apply in practice.

The Commission is therefore considering targeted amendments to both the Climate and Environmental Delegated Acts in order to improve the usability of the criteria while maintaining their robustness and credibility. These may include adjustments to specific technical screening criteria, improved definitions, clearer requirements for proving compliance with criteria, removal of duplicative or disproportionate requirements, and clearer references to related EU rules.

The calls for evidence are open for four weeks.