Starting January 1st, the European Union has introduced new laws to improve how chemicals are evaluated for safety. This is to better protect people’s health and the environment. The new framework, called the ‘one substance, one assessment’ (OSOA) package, addresses several key areas. It aims to make chemical safety assessments more consistent, transparent, and efficient. The goal is to improve how risks are identified, speed up regulatory decisions, and strengthen cooperation between companies and regulators. A major part of this change is the creation of a new, central public database on chemicals. This database will include information from various EU laws and will cover standardized formats, processes, product details, alternatives to harmful substances, and data related to environmental sustainability. It is expected to be fully operational within the next three years and will be managed by the European Chemicals Agency (ECHA), with support from other EU bodies like the European Medicines Agency (EMA). The database will help ensure that scientific assessments are conducted by agencies with the right expertise and tools, leading to more reliable and consistent results. Jessika Roswall, the European Commissioner for Environment, Water Resilience, and a Competitive Economy, explained that this new system will make it easier to access trustworthy data, improve scientific cooperation, and help the EU better prepare for and manage chemical risks. Additionally, the framework includes a system to monitor and identify new chemical risks earlier. Alongside the main regulation, the package also includes two other laws that improve how EU agencies work together and reassign certain technical tasks to ECHA. Dr. Sharon McGuinness, Executive Director of ECHA, described the OSOA package as a major step toward a more efficient chemical safety system in Europe. She emphasized that by working with partner agencies and authorities, the EU can create a system that anticipates risks, uses existing knowledge, and supports innovation. The shared goal is a safer and more sustainable Europe through teamwork and decisions based on science.