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...