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January 23, 2023

ECHA Consulting on Harmonized Classification and Labeling for IPBC


By Lynn L. Bergeson and Carla N. Hutton

The European Chemicals Agency (ECHA) is holding a public consultation on a harmonized classification and labeling (CLH) proposal for a biocidal active substance, 3-iodo-2-propynyl butylcarbamate; 3-iodoprop-2-yn-1-yl butylcarbamate (IPBC) (European Community Number (EC No.) 259-627-5, Chemical Abstracts Service Registry Number® (CAS RN®) 55406-53-6). ECHA used a combined format, including the competent authority (renewal) assessment report prepared according to Commission Delegated Regulation (EU 1062/2014) and the proposal for an updated CLH according to the Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures. The hazard classes open for commenting are “acute toxicity — inhalation” and “hazardous to the aquatic environment (acute and chronic).” Comments are due February 17, 2023.

The Great Britain Mandatory Classification and Labelling (GB MCL) process includes the consideration of information gathered from public consultations, conducted by the United Kingdom (UK) Health and Safety Executive (HSE) or international bodies such as ECHA. HSE encourages UK-based businesses with an interest in the proposal to share any relevant information directly with ECHA. HSE suggests that if a business is affected by the Great Britain Classification, Labelling and Packaging (GB CLP) Regulation, it should consider whether it is likely to be affected by the classification and labeling proposal and let HSE know at an early stage if it anticipates any significant impacts or benefits. Information on wider policy and impact considerations can be submitted to HSE at Under the GB CLP Regulation, HSE will consider all published opinions of ECHA’s Committee for Risk Assessment (RAC) before publishing its own Agency Technical Reports and Agency Opinions, so any information provided will be important in any final GB MCL decision.