Introduces Real Driving Additional Sound Emission Provisions (RD-ASEP) for vehicles of categories M1 and N1 covering driving conditions outside of normal driving with higher accelerations and vehicle speeds up to 100 km/h

TF TPMSTI implements the requirements for a Tyre Pressure Refill System (TPRS) and a Central Tyre Inflation System (CTIS)

TFVS analyses of the feasibility of further limit value reductions and their effectiveness in real traffic conditions.

Comments on the proposals prepared by BIPAVER, France and Netherland to align the test procedures for retreaded tyres with the latest amendments to R30, R54 and R117.

This proposal aligns with the “Alpine symbol” location that is not restricted to the lower area of the tyre as prescribed in UN Regulation No. 117, especially considering the larger dimensions of the “Snow Grip Marking for Studded Tyres"

IWG WGWT proposes to amend document ECE/TRANS/WP.29/GRBP/2021/12

Summary of GRBP-74-06

Corrections and alignment to document ECE/TRANS/WP.29/GRBP/2021/15

Proposal from the TPMSTI task force to update draft provisions for performance testing of Tyre Pressure Monitoring System/Tyre Pressure Refill System/Central Tyre Inflation System and for an alternative procedure for type approval of subject trailer(s).

Presentation on proposed amendments to align with the latest amendments made on UN Reg 41 and to reduce the number and amount of different exhaust types to be approved by NORESS manufacturers

IWG to propose amendments to UN R117

Proposal to amend ECE/TRANS/WP.29/GRBP/2021/23

Proposal from the Studded Tyres task force aim to create a new UN Regulation on uniform provisions concerning the approval of studded tyres with regard to their snow performance (distinguished from studdable tyres regulated by UN Regulation No. 117).

Proposal to expand and improve the current definition of a radial structure while ensuring the radial tyres key features (mechanical decoupling between the tread and the bead).

Proposal to amend the definition of “radial tyre” in UN Regulations No. 54, 75, 106, 108 and 109 based on the proposal for UN Regulation No. 30 in document GRBP/2021/9.

Proposal to align UN R92 with the latest amendments to UN R41 and to reduce the number of exhaust system types (allowing for slight differences in drawings) to be approved by NORESS manufacturers.

Proposal from the Worn Tyres working group to introduce a procedure and thresholds on wet grip performance for C1 tyres in worn state.

Proposal to clarify the use of an additional load/speed combination for a tyre type.

Proposal to clarify interpretation of the requirements concerning variation of sound emitted proportionally with the vehicle speed.

Proposal to align the provisions for retreaded tyres with the proposals of France for UN Regulation No. 30, of the European Tyre and Rim Technical Organization (ETRTO) for UN Regulation No. 117 and to cover all the tread materials.

Proposal to align the provisions for retreaded tyres with the proposals of the European Tyre and Rim Technical Organization (ETRTO) for UN Regulations Nos. 54 and 117 and to cover all the tread materials.

Proposal to introduce provisions for ice grip tyres, clarify Conformity of Production, sample submissions, and testing methods, and to make editorial corrections and improvements.

Proposal to allow, under certain condition of traceability, upgrading of the service description of a used casing.

Proposal from the TPMSTI task force to align UN Regulation No. 141 with the transitional provisions of European Union (EU) Regulation 2019/2144.

Proposal from the TPMSTI task force to introduce in UN Regulation No. 141 an alternative procedure for type approval of trailers (vehicles of categories O3 and O4) regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS).

Proposal from the TPMSTI task force order to align the transitional provisions in UN Regulation No. 142 with the transitional provisions in European Union (EU) Regulation 2019/2144.

Proposal from the Noise Measurement Uncertainties informal group to to reduce variability of measurements.

Proposal to align the 08 series of amendments to UN Regulation No. 9 with standard 10844:2014 of the International Organization of Standardization (ISO).

Proposal to align the 02 series of amendments to UN Regulation No. 63 with standard 10844:2014 of the International Organization of Standardization (ISO).

Proposal to introduce an alternative procedure for type approval of trailers (vehicles of categories O3 and O4) regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS).

Text prepared by the experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) in order to improve the current wording for better clarification.

Proposal to introduce Real Driving Additional Sound Emission Provisions (RD-ASEP) as a preliminary test procedure for the purpose of collecting experience on the complete new test and evaluation concept.

Text, all tables and figures in this proposal have been prepared by the experts of the Task Force on Reverse Warning Sound (TF RWS) with the aim to draft a new UN Regulation concerning the approval of audible reverse warning devices and of motor vehicles with regard to their audible reverse warning signals.

Proposal to remove an inconsistency in the marking provisions and extend production of the “regroovable” symbol or word “REGROOVABLE” beyond moudling (i.e., enable use of other technologies) for tyres that can be regrooved and to consolidate the calculation of reference dimensions with that provided in GTR 16 to allow measuring tyres with size designations listed in Annex 5 on rims whose width code differs from the measuring rim width code listed in the tables of Annex 5.