GRBP will address amendment proposals by the expert from the European Tyre and Rim Technical Organization (ETRTO) that clarify several definitions and make editorial changes.
| GRBP-81-05/Rev.1 | UN R30: Proposal to supersede document GRBP/2025/9 | |
| GRBP/2025/9 | UN R30: Proposal for Supplement 27 to the 02 series of amendments |