
ECHA's Regulatory Assessment Highlights Risks of tert-Alkyl/Aryl Peroxyesters
ECHA assesses tert-alkyl/aryl peroxyesters for reproductive and aquatic toxicity risks, urging regulatory actions.

The European Chemicals Agency (ECHA) has opened a consultation on implementing reporting requirements for microplastics under the REACH Regulation. Starting on 18 December 2024, stakeholders are invited to provide input until 20 January 2025. The initiative targets improving transparency and risk management for synthetic polymer microparticles (SPM) exempted from the market prohibition.
The reporting requirements stem from Entry 78 of Annex XVII of the REACH Regulation, established by Commission Regulation (EU) 2023/2055. This regulation mandates annual reporting of estimated environmental emissions from derogated uses of synthetic polymer microparticles (SPM). Affected parties include manufacturers, downstream users, and suppliers introducing these substances to consumer or professional markets.
SPM uses subject to reporting include industrial applications, medicinal products, food additives, and diagnostic devices. Exemptions apply when technical measures prevent environmental release or when polymers are permanently incorporated into solid matrices.
Starting in 2026, manufacturers and industrial users must report emissions from plastic feedstock use. By 2027, reporting expands to other SPM-related uses. The process involves submitting data via IUCLID, with emissions quantified per use and reported annually through the REACH-IT platform.
ECHA seeks feedback to ensure the feasibility and practicality of its proposals for affected industries. The information collected will guide enforcement, monitor regulatory impact, and refine risk management strategies.




ECHA assesses tert-alkyl/aryl peroxyesters for reproductive and aquatic toxicity risks, urging regulatory actions.

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