75. The representative of the United States of America reported on the outcome of the fourth meeting of the IWG on enforcement issues (27 June 2013, Geneva) which was chaired by the Senior Associate Administrator of the National Highway Traffic Safety Administration (NHTSA) Mr. D. Smith. He informed WP.29 that, among others, the European Tyre and Rubber Manufacturers’ Association (ETRMA) had presented a case study on the need for enforcement efforts based on tyre defects, while the Motor and Equipment Manufacturers Association (MEMA) had discussed their continued efforts to battle counterfeit air-bags. He also informed WP.29 that the representatives of Australia, the United Kingdom and the European Union had explained their approaches to addressing safety defects and recalls, enforcement policies and development of type approval legislation by incorporating dedicated market surveillance provisions. He announced that the next meeting of the IWG was scheduled to be held during the June 2014 session of WP.29.