The introduction of new hazard classes within the CLP Regulation framework represents one of the most significant innovations in chemical substance management in recent years. With Delegated Regulation (EU) 2023/707, the European Union integrated new categories into the CLP system concerning, among others, endocrine disruptors and PBT, vPvB, PMT, and vPvM substances, expanding the scope of assessments required from manufacturers, importers, and downstream users.
The effect of this innovation is not confined to the theoretical level of classification. Indeed, the new hazard classes have a direct impact on the contents of Safety Data Sheets (SDS), as every new classification necessitates a review of the information to be provided regarding hazards, preventive measures, ecotoxicological data, and risk management measures.
The application deadlines confirm the relevance of 2026. For new substances on the market, the application of the new classes already started on May 1, 2025; for new mixtures, the operational reference is May 1, 2026, while extended transitional periods apply to numerous mixtures already present on the market. This makes 2026 a particularly sensitive year for companies that market or use complex formulations.
