GRBP-83-29
UN R51: Consolidation of proposals into Supplement 11
Source(s)
OICA
Date
6 Feb 2026
Status
Subject
Meeting(s)

Consolidation in Supplement 11 includes: clarification of Verification/Adjustment and editorial corrections with transitional provisions (GRBP/2025/20 with GRBP-82-07); correction of Tyre Road Sound Measurement for Indoor-Testing (GRBP-82-22); introduction of ASEP in Annex 7 for BEVs and HEVs (GRBP/2026/4 with GRBP-83-xx); update of ISO standards in Annex 3 and Annex 8 (GRBP/2026/5 with GRBP-83-xx); and reference for Power Definition regarding new UN R177 (GRBP/2026/13). The consolidated version of Supplement 11 is to be submitted to the 199th WP.29 in June.

Downloads
UNECE server
Related documents
GRBP/2025/20
UN R51: Proposal for corrections to the 03 series of amendments (Approved by GR)
GRBP-82-07
UN R51: Proposal for a Supplement to 03 series of amendments (Approved by GR)
GRBP-82-22
UN R51: Proposal for Supplement to 03 Series of amendments (Approved by GR)
GRBP-82-23
UN R51: Proposal for correction to 03 series of amendments (Approved by GR)
GRBP/2026/4
UN R51: Proposal for a Supplement 11 to the 03 series of amendments (Formal GR review)
GRBP/2026/5
UN R51: Proposal for a Supplement to the 03 series of amendments (Formal GR review)
GRBP/2026/13
UN R51: Proposal for corrections to the 03 series of amendments (Formal GR review)
Excerpts from session reports
GRBP | Session 82 | 3-5 Sep 2025

8. The expert from OICA also proposed clarifications and corrections for UN Regulation No. 51 (ECE/TRANS/WP.29/GRBP/2025/20 as amended by GRBP-82-07, GRBP-82-22, GRBP-82-23). GRBP adopted these proposals as part of draft Supplement 11 to the 03 series of amendments to UN Regulation No. 51 and agreed to freeze it for the time being, awaiting other amendment proposals before transmission to WP.29 and AC.1.

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