On November 4, 2024, the European Chemicals Agency (ECHA) introduced seven new substance testing proposals and requested public comments by December 19, 2024. ECHA's call for comments on the substance testing proposals is a public assessment process aimed at determining whether registered chemicals require additional testing. According to REACH regulations, before proceeding with Annexes IX and X (corresponding to registered tonnages of 100-1000t/y and over 1000t/y), registrants must submit a testing proposal (TP). After the comment period ends, ECHA will finalize the testing requirements based on feedback and the characteristics of the substances.
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