WP.29/2026/55
UN R129: Proposal for a 05 series of amendments

Proposal to modify para. 6.2.1.1. regarding insert layers for small babies with stature below 50 cm, amend Annex 18, table 1 with updated shoulder height dimensions for statures 40 cm to 70 cm, update approval markings in Annex 2, and introduce transitional provisions with Contracting Parties no longer obliged to accept preceding series approvals from 1 September 2028.

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Excerpts from session reports
GRSP | Session 78 | 1-4 Dec 2025

34. The expert from the Netherlands introduced informal document GRSP-78-47-Rev.1 amending ECE/TRANS/WP.29/GRSP/2025/32 to improve the shoulder height requirements to properly take into account the dimensions of premature newborns. On a question from the expert from CI about practical implementation details, the expert from the Kingdom of the Netherlands replied that this matter was expected to be discussed by the same group of experts which would be discussing child restraint systems using electronic components (see paragraph above). GRSP adopted informal document GRSP-78-47-Rev.1, as amended, (as reproduced in annex VI) and requested the secretariat to submit it as a proposal for the 05 series of amendments to UN Regulation No. 129 to the June 2026 sessions of WP.29 and AC.1.