ICRT is an international consortium of consumer organizations that carries out joint research and testing of products to provide objective and comparative information to consumers. ICRT publishes comparative tests of over 5,000 products per year focusing on criteria like performance, safety, and environmental impact. The comparative tests aim to inform consumer choices, pressure companies to improve products, and compile data to support advocacy efforts. While comparative testing is effective, including sustainability criteria presents challenges regarding resources, coordination, and integrating complex issues into ratings.