17. The expert from OICA introduced GRSP-56-14, complemented by GRSP-56-16 reproducing a consolidated text of the amendments proposed [in document GRSP-56-14]. He explained that the proposal was needed to verify which seating positions would allow the installation of the universal booster child restraint system (CRS) proposed by the draft 01 series of amendments to the UN Regulation No. 129 (Enhanced Child Restraint Systems) (see para. 33 below). He clarified that the proposal was aimed at introducing physical [testing], computer simulation or any other means [acceptable to a type-approval authority] to assess [compliance with the child-restraint fixture installation requirements]. The expert from CLEPA introduced GRSP-56-35 to clarify the dimensions of ISOFIX anchorages of the proposed fixture. The expert from OICA argued that GRSP-56-35 could lead to misinterpretation since UN Regulation No. 16 is not dealing with ISOFIX anchorage provisions. The expert from EC noted that the required information on ISOFIX installation (see Annex 17, Appendix 3, tables 1-3 of the UN Regulation No. 16) could be misleading for consumers. The expert from France clarified that the introduction of booster cushion was aimed at improving comfort rather than safety and that the IWG designed provisions for a universal system of this type of CRS as per other CRS. GRSP agreed to refer GRSP-56-14, GRSP-56-16 and GRSP-56-35 to the IWG on CRS for further discussion and agreed to resume consideration on this subject at its May 2015 session.