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The European Chemicals Agency (ECHA) has launched a consultation on an application submitted by its Committee for Socio-economic Analysis (CTACSub 2) for the authorization of Chromium trioxide (EC 215-607-8, CAS 1333-82-0). This application covers twelve specific uses across three categories: mixture formulation, functional chrome plating on components, and surface treatments in aerospace and other industries.

In accordance with REACH regulations, before conducting tests under Annex IX and X (for registration volumes of 100-1000 tons per year and over 1000 tons per year), registrants must submit a testing proposal (TP). After a consultation period, ECHA will finalize the testing requirements based on feedback and the characteristics of the substance.

On May 20, 2024, the Occupational Safety and Health Administration (OSHA) amended the Hazard Communication Standard (HCS) to align with the 7th Revised Edition of the UN's Globally Harmonized System of Classification and Labelling of Chemicals (GHS). The amendment includes elements from the 8th Revised Edition of the GHS and retains certain U.S.-specific requirements. The regulation takes effect on July 19, 2024, with compliance required by January 19, 2026, and for mixtures by July 19, 2027.

On April 15, 2024, Germany, as one of the five initiating countries of the European Union's proposal to restrict perfluoroalkyl and polyfluoroalkyl substances (PFAS) (the other four countries include the Netherlands, Denmark, Sweden, and Norway), updated its assessment report based on the numerous comments collected during the six-month public consultation phase from March 22, 2023, to September 25, 2023. The assessment work was conducted by the German Federal Institute for Occupational Safety and Health (BAuA)

Japan launched GHS Classification Information Collection Project of 2024 Public-Private Cooperation, which requires companies to provide test reports for chemical substances.