16. GRSP resumed consideration of paragraph 5.3.8.2. of ECE/TRANS/WP.29/GRSP/2013/15, concerning exemption to the mandatory installation of an ISOFIX position anchorages in vehicles with one seat row. However, the expert from OICA showed (GRSP-55-32) differences between sport cars unfitted for the transport of children and conventional cars with one seat row. Therefore, he proposed GRSP-55-31 which introduces a geometric criteria (R- point height above the ground less than 450 mm) to exempt such sport cars. The expert from Germany raised a study reservation on this proposal. GRSP agreed to resume consideration of this subject at its December 2014 session and requested the secretariat to distribute GRSP-55-31 with an official symbol.