83. WP.29 noted ECE/TRANS/WP.29/2014/89 proposing Addendum 2 to M.R.1. to include specifications on the 50th percentile World Side Impact Dummy (WorldSID). The representative of Australia clarified that the proposal was a temporary solution to complement the new UN Regulation on PSI, awaiting the full set of drawings and specifications to be provided by the IWG dealing with side impact dummies in cooperation with ISO. WP.29 adopted the proposal and noted that consideration and vote would continue during the session of AC.3 (see para. 110).