On 21 October 2025, the European Parliament officially approved the landmark “One Substance, One Assessment” (OSOA) reform — a major step toward simplifying and harmonizing the EU chemical safety regulation framework.
This comprehensive legislative package, part of the EU Chemicals Strategy for Sustainability, includes three proposals designed to enhance transparency, efficiency, and scientific cooperation across the European Union.
A Unified Data Platform for Chemical Safety
The OSOA reform introduces a centralized data platform that consolidates all chemical-related information — including data on hazards, physico-chemical properties, environmental presence, emissions, uses, and sustainability.
This “one-stop-shop” access point will make it easier for industries, researchers, and policymakers to obtain reliable chemical safety data, supporting evidence-based decision-making and sustainable product development.
Strengthened Monitoring and Early-Warning Systems
The reform mandates the systematic collection of human biomonitoring data, such as chemical concentrations in blood and breast milk, to better assess long-term health and environmental impacts.
It also reinforces early-warning mechanisms to identify emerging chemical risks, helping prevent potential threats before they escalate.
Enhanced Cooperation Among EU Agencies
To improve regulatory coherence, the OSOA package strengthens collaboration between key EU agencies — the European Chemicals Agency (ECHA), European Food Safety Authority (EFSA), European Environment Agency (EEA), and European Medicines Agency (EMA).
This inter-agency synergy is expected to reduce duplication of work, accelerate safety assessments, and foster a more transparent evaluation process for substances used in food, medicine, and consumer products.
Next Steps Toward Implementation
After formal adoption by the EU Council, the OSOA package will enter into force 20 days after publication in the Official Journal of the European Union (OJEU).
This reform represents a cornerstone of the EU’s Zero Pollution Vision 2050, reinforcing Europe’s commitment to protecting human health, promoting chemical sustainability, and achieving a toxic-free environment.
0 comments