| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-75-02/Rev.1 | Proposal for amendment to Regulations No. 51, 117, 138 | |
| GRBP-75-03 | UN R138: Background noise criteria - ISO 16254 Technical Measurement Development | |
| GRBP-75-03 | UN R138: Background noise criteria - ISO 16254 Technical Measurement Development | |
| GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference | |
| GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision | |
| GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision | |
| GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision | |
| GRBP-75-44 | UN R138: Comments on the draft terms of Reference of IWG | |
| GRBP-75-44 | UN R138: Comments on the draft terms of Reference of IWG |
GRBP may wish to revert to the proposal by the expert from Switzerland which prohibits operation of the acoustic vehicle alerting system (AVAS) outside the specification speed range from 0 km/h up to and inclusive 20 km/h.
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments | |
| GRBP-75-02/Rev.1 | Proposal for amendment to Regulations No. 51, 117, 138 | |
| GRBP-75-03 | UN R138: Background noise criteria - ISO 16254 Technical Measurement Development | |
| GRBP-75-03 | UN R138: Background noise criteria - ISO 16254 Technical Measurement Development | |
| GRBP-75-07 | Measurement Uncertainties: Proposal for amendment to Document of Reference | |
| GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision | |
| GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision | |
| GRBP-75-42 | UN R138: Proposal for draft Terms of Reference of IWG for revision | |
| GRBP-75-44 | UN R138: Comments on the draft terms of Reference of IWG | |
| GRBP-75-44 | UN R138: Comments on the draft terms of Reference of IWG |
GRBP may also expect a progress report of the Informal Working Group on Quiet Road Transport Vehicles for the Global Technical Regulation (IWG QRTV GTR).
| GRBP-75-02/Rev.1/Add.1 | ISO 10844 : 2021 Technical changes |