| 183rd WP.29 session (9-11 Mar): With 39 of the 56 Contracting Parties applying UN R150 present and voting, AC.1 adopted document WP.29/2021/47 by a vote of 37 in favor, 0 opposed, with 2 abstaining. |
| Simplification of Lighting and Light-Signalling Regulations | Session 52 | 15-17 Dec |