| 185th WP.29 session (23-26 Nov 2021): With 40 of the 56 Contracting Parties applying UN R150 present and voting, AC.1 adopted document WP.29/2021/96 by a vote of 37 in favor, 0 opposed, with 3 abstaining. |
| World Forum for the Harmonization of Vehicle Regulations | Session 187 | 20-24 Jun |
| Simplification of Lighting and Light-Signalling Regulations | Session 55 | 18-20 May |