GRSG agreed to revisit a revised proposal by France and OICA to simplify the handling of colour changes of controls, tell-tales and indicators and to remove footnote 18 from the table (ECE/TRANS/WP.29/GRSG/2018/6).
| GRSG/2018/6 | UN R121: Proposal for Supplement 10 to the original series of amendments and Supplement 2 to the 01 series of amendments |
| GRSG-115-14/Rev.1 | UN R121: Proposal for Supplement 3 to the 01 series of amendments |