The Chair of GRSP , also chairing of the IWG on harmonization of side impact dummies , reported on the work progress of the IWG . She informed GRSP about an upcoming meeting with ISO ( 23 May 2014 ) to reach an agreement on the availability of the full set of drawings and specifications including the user manual of the 50th percentile World Side Impact dummy ( WorldSID ) for the final draft addendum to the M.R.1 .