A dynamic test for seat-belt assemblies is soon to be a mandatory requirement for new cars sold in Australia. As an aid to the development of suitable test requirements, a meeting was held at the Department of Motor Transport in November, 1972 in order to bring together those organisations and individuals most closely concerned with them. This report comprises papers prepared by staff of the Traffic Accident Research Unit for this meeting. As well as describing some of the Unit's own activities in this area, attention is drawn to the work of other research groups and the activities of the various bodies concerned in rulemaking around the world. The report is now being published for general information and wider circulation, and in the interests of uniformity and reproducibility of test procedures.