Proposal to insert new definitions for Child Restraint System, ISOFIX position, and i-Size seating position, insert new para. 7.7.8.7 requiring pictograms for ISOFIX-seating positions, i-Size-seating positions, and rearward-facing passenger seats, insert new paras. 10.42 to 10.42.7 establishing transitional provisions with entry into force from the official date, mandatory application from 1 September 2030, and acceptance of prior series until 1 September 2032, and add new figures 33, 34, and 35 to Annex 4 specifying pictogram requirements.