The first International Conference on Health Effects from Vehicle Emissions was held in London from 16th to 17th February at the Royal Society of Medicine. More than 200 delegates from over 18 countries, representing health bodies, the automobile and fuel industries, non-governmental organisations, universities and environmental groups, heard papers covering the major themes of legislation, to curb vehicle emissions, and the increasing concern over the effects of emission and hence air quality on human health. Transport policies and vehicle and fuel technologies were also discussed. This review covers these topics and also the role that catalysts based on platinumg roup metals play in the contined lowering of vehcle emissions globally.