Proposal from the Noise Measurement Uncertainties informal group to update provisions related to temperature sensitivity.

Proposal from the informal group on Measurement Uncertainties, superseding the proposal in document GRBP/2023/19.

Submitted by the Chair of informal group on Measurement Uncertainties.

Proposal for a reference document concerning a general approach for how to handle measurement uncertainties under UN Regulations within the purview of GRBP.

Proposal from the informal group on Measurement Uncertainties to introduce provisions on exterior noise measurements when performing type-approval, COP or, field testing (e.g., market surveillance).

This proposal concerns to amendments to Annex 7. The proposed changes regarding sound enhancement systems are based on the 03 series of amendment up to Supplement 9. In addition, some clarifications concerning power definition and temperature correction have been included based on experiences with the last changes of this regulation.

Status report of the task force on the 02 series of UN R138.

Consolidated text prepared by the QRTV task force (for information).

Proposal to transition test facilities from ISO 10844:2014 to ISO 10844:2021 by January 2029.

Comments concerning:

• AVAS Pause Switch
• AVAS Sound Pressure Levels
• Maximum AVAS Sound Pressure Level
• AVAS Sound when vehicle stationary

Information concerning discussions on the proposals to extend the scope to ‘E’ speed symbol.

Small group (France, Netherlands, ETRTO, BIPAVER) proposal to restructure retreaded tyre requirements and regulations.

Small group proposal to split retreaded tyre requirements into a new UN Regulation.

Proposal from a small group effort for uniform provisions concerning the approval of pre-cured tread materials which are used for producing retreaded tyres or the approval of retreaded tyres produced by using mould cure process with regard to their snow performance.

Proposal to amend rolling resistance provisions with regard to heavy-duty-use light trucks.