GRPE may wish to consider a proposal to amend UN GTR No. 24, to include a vehicle-specific non-friction braking measurement procedure, definition of brake emission families and other changes with the aim of improving the overall protocol.
| GRPE/90/Add.1 | GTR 24: Proposal for a new amendment | |
| GRPE-90-06 | UN GTR 24: Proposal for amendment 1 | |
| GRPE-90-25/Rev.3 | UN GTR24: Proposal for a new amendment | |
| GRPE-90-25/Rev.3 | UN GTR24: Proposal for a new amendment | |
| GRPE-90-25/Rev.3 | UN GTR24: Proposal for a new amendment | |
| GRPE-90-25/Rev.3 | UN GTR24: Proposal for a new amendment | |
| GRPE-90-25/Rev.3 | UN GTR24: Proposal for a new amendment | |
| GRPE-90-25/Rev.3 | UN GTR24: Proposal for a new amendment | |
| GRPE-90-26 | UN GTR24: Proposal for amendments | |
| GRPE-90-26 | UN GTR24: Proposal for amendments | |
| GRPE/2024/4 | GTR 24: Proposal for an Amendment |