European Chemicals Agency (ECHA), November–December 2025 published details of multiple ongoing third-party consultations on potential candidates for substitution (CfS) and on derogation conditions under the EU Biocidal Products Regulation (BPR). These consultations are part of ECHA’s support to the evaluation of active substances that may pose higher risks to human health, animal health, or the environment.
Under Article 10(1) of the BPR, active substances meeting specific hazard criteria may be identified as candidates for substitution. In such cases, ECHA launches consultations under Article 10(3) to gather information on the availability of suitable alternatives before delivering its opinion on approval or renewal to the European Commission. In parallel, substances meeting exclusion criteria under Article 5(1) including carcinogenic, mutagenic or reprotoxic (CMR) category 1A/1B substances, endocrine disruptors, persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) substances are normally not approved unless derogation conditions under Article 5(2) are met.
Current consultations include silver nitrate (consultation period 24 November 2025 to 23 January 2026), formaldehyde released from paraformaldehyde and benzyl alcohol reaction products (25 November 2025 to 26 January 2026), tebuconazole (16 December 2025 to 13 February 2026), and imidacloprid (10 December 2025 to 9 February 2026). These consultations address both the availability of alternatives and, where applicable, arguments supporting derogations, such as negligible risk under realistic worst-case use, essentiality to prevent serious dangers, or disproportionate societal impacts if approval is denied.
Consultations are open to EU/EEA and non-EU stakeholders, including industry, laboratories, NGOs, scientific organisations, and Member State authorities. The collected evidence plays a key role in enabling science-based, proportionate regulatory decisions under the BPR.

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European Chemicals Agency (ECHA); Candidates for substitution (CfS); Bioaccumulative and toxic