10. The expert from the United States of America, Chair of the IWG on the harmonization of side impact dummies, informed GRSP about the work progress of the group. She clarified that the IWG was focusing on drafting Addendum 2 of the M.R.1 and the challenges to include the latest build level of the 50th percentile World Side Impact (WorldSID) male dummy in this Addendum. She added that the technical specifications of the dummy had been published in the ISO standard 15830:2013 and that ISO had agreed so far to allow some parts of the standard to be reproduced in the Addendum and some parts to be incorporated by reference. However, she indicated that the build level of the male dummy in the ISO standard was not the latest and that ISO was finalizing a supplement to ISO 15830 “WorldSID ISO Technical Specification” with the most recent dummy improvements. She finally stated that the IWG would continue discussions with ISO to incorporate the dummy improvements contained in the above mentioned updated ISO standard into draft Addendum 2. Finally, GRSP agreed to seek endorsement of WP.29 and AC.3 to their June 2015 sessions to extend the mandate of the IWG until December 2016.