Proposal to insert definitions for Child Restraint System, ISOFIX position, and i-Size seating position, add requirements for installation of child restraint systems in vehicles of categories M₂ and M₃ including pictogram markings for ISOFIX positions, i-Size seating positions, and rearward-facing passenger seats, and establish transitional provisions. Contracting Parties applying this Regulation shall not be obliged to accept type approvals to preceding series first issued after 1 September 2030.

Proposal to amend para. 2.5.2. to change the lower vertical datum point from 5 above the horizontal to 4 above the horizontal, and amend Figure 3 to reflect this adjustment. The modification harmonizes the location of the lower datum point with the angle of obstruction requirement and resolves an inconsistency in UN Regulation No. 43.

Proposal to amend para. 5.1.1.3. to adjust the lower vertical datum point from 5 degrees to 4 degrees below the horizontal and update the corresponding figure in Annex 4, Figure 1. This harmonizes the location of the lower datum point with the angle of obstruction requirement in para. 5.1.3., resolving an inconsistency between the allowed area of obstruction and the mandated transparent area of the windscreen.