Proposal to specify a tolerance for the maximum overall width of tyres identified by the “tyre to rim fitment configuration” symbol A.

Proposal to align the UN R155 Interpretation Document with the proposal to extend the scope of UN R155 to Category L vehicles.

Proposal to introduce provisions for identification of buses and trucks equipped with an electric drivetrain consistent with existing regulated identification for Liquified Petroleum Gas (LPG), Compressed Natural Gas (CNG), Liquid Natural Gas (LNG) and Compressed Hydrogen (H2) fueled trucks and buses.

Proposal to enable use of a rigid plastic speaker simulator in lieu of the current deformable simulator to facilitate and reduce the costs of testing.

Proposal to clarify the conditions under which Enhanced Child Restraint Systems must be tested in a vehicle body shell and to allow installation of a dummy protective device on the UN R129 bench in the dynamic frontal test with a universal booster cushion.

Proposal to clarify the conditions under which Enhanced Child Restraint Systems must be tested in a vehicle body shell and to allow installation of a dummy protective device on the UN R129 bench in the dynamic frontal test with a universal booster cushion.

Proposal to permit the use of hydrogen (H2) as fuel for emissions type-approval of heavy duty vehicles.

Proposal to permit the use of hydrogen (H2) as fuel for emissions type-approval of heavy duty vehicles and to introduce an option to measure the total hydrocarbon (THC) emissions instead of measuring the non-methane hydrocarbon emissions in certain cases.

Proposal to extend the option from the 06 and 07 to the 05 series of amendments allowing the calculation of road load values from those determined according to UN GTR No.15 (WLTP).

Proposal for amendments to align UN R83 with provisions of UN R154 (WLTP).

Proposal for amendments to align UN R83 with UN R154 (WLTP).

Proposal to introduce corrections and clarifications to the 08 series of amendments.

Proposal to clarify and update requirements for fitment of auxiliaries when testing the net power or 30 minutes power of electric drive trains.

Proposal to permit the use of hydrogen (H2) as a fuel for approval of internal combustion engines to be installed in agricultural and forestry tractors and in non-road mobile machinery and to correct editorial/typographical errors.

Proposal to allow for an alternative process for electric energy consumption verification in Conformity of Production, and to amend the charger requirement and the measurement method of REESS current for a hybrid electric power train. Both changes align with procedures already included in 02 series of amendments to UN Regulation No. 154.

Proposal to permit the use of hydrogen (H2) as fuel for approval of internal combustion engines to be installed in agricultural and forestry tractors and in non-road mobile machinery and to correct editorial/typographical errors.

Proposal to extend the scope of UN R155 to include all vehicles of Category L.

Proposal to adapt the regulation to allow for the approval of vehicles equipped with both an Automated Driving System and a manual driving mode.

Proposal to enable approval of vehicles equipped with both an Automated Driving System and a manual driving mode.

Proposal to adapt the regulation to allow for the approval of vehicles equipped with both an Automated Driving System and a manual driving mode.

Proposal to adapt the regulation to allow for the approval of vehicles equipped with both an Automated Driving System and a manual driving mode.

Proposal to correct a misalignment between the transitional provisions for the new 06 series of amendments to UN R78 and the General Guidelines for Transitional Provisions in UN Regulations.

Proposal to clarify the provisions for ACSF Cat. A “Remote Controlled Parking (RCP)” for vehicle combinations. The current definition for RCP S_RCPmax sets a maximum limit of 6m distance to the motor vehicle, which is insufficient in situations where the operation is supervised by the driver located behind the vehicle combination.

Proposal to clarify the provisions for ACSF Cat. A “Remote Controlled Parking (RCP)” for vehicle combinations. The current definition for RCP S_RCPmax sets a maximum limit of 6m distance to the motor vehicle, which is insufficient in situations where the operation is supervised by the driver located behind the vehicle combination. The proposal also amends the text to allow for the approval of vehicles equipped with both an Automated Driving System and a manual driving mode.

Proposal to move provisions for snow grip performance of retreaded tyres and their classification as traction tyres from UN R108 into a new UN Regulation on type approval of retreaded tyres of classes C1, C2 and C3 with respect to their snow grip performance and/or classification as traction tyre.

Proposal to move provisions for snow grip performance of retreaded tyres and their classification as traction tyres from R109 into a new UN Regulation on type approval of retreaded tyres of classes C1, C2 and C3 with respect to their snow grip performance and/or classification as traction tyre.

Proposal to introduce measures to reduce variability in noise measurements and new test methods to measure tyre abrasion.

Proposal to specify the working principles of an Acoustic Vehicle Alerting System (AVAS) and to reduce measurement uncertainties during the measurement of the one third octave bands.

Proposal for editorial corrections.

Proposal to allow use of state-of-the-art test tracks per the latest standard ISO 10844:202

Proposal to permit the use of state-of-the-art test tracks per the latest standard ISO 10844:2021.

Proposal for corrections and clarifications concerning power definition, calibration, temperature correction and Reference sound assessment.

Proposal to allow the use of state-of-the-art test tracks per the latest standard ISO 10844:2021.

Proposal to improve the reproducibility of the snow grip test method by replacing the current reference tyres C3 SRTTs 19.5 and 22.5 with the new reference tyres C3 SRTTs 19.5 and 22.5 siped, to make editorial improvements and updates to ISO and ASTM standards references, and to align with Supplement 2 to the 04 series of amendments, including a new temperature correction formula for the rolling sound emissions of tyres of classes C1 and C2 and to remove the content of the now obsolete Annex 4 as well as all its references.

Proposal to introduce a new temperature correction formula for the rolling sound emissions of tyres of classes C1 and C2, to remove the content of the now obsolete Annex 4 as well as all its references, to update references to standards, to improve the reproducibility of the snow grip test method by replacing the current reference tyres C3 SRTTs 19.5 and 22.5 with the new reference tyres C3 SRTTs 19.5 and 22.5 siped, and to make editorial improvements for clarity and consistency across tyre regulations.

Corrections identified during the work of the GRSP task force on the Transposition of GTR 13 Phase 2 amendments into UN R134.

Proposal to introduce requirements and test procedures for Deployable Pedestrian Protection Systems (DPPS).

Final report on the development of the amendment to introduce provisions for deployable pedestrian protection systems.

Proposal to improve several aspects of the text with respect to signals measurement and accuracy, alternative measurement methods where needed, and other improvement to improve the robustness of the UN GTR.

Final report on the development of amendments to improve measurement procedures and provide for alternative methods where needed.

Proposal for amendments concerning handling of vehicles not subject to normal use, vehicle-to-grid usage, procedures for verification of on-board monitors, and usable battery energy provisions.

Proposal to introduce a vehicle-specific non-friction braking measurement procedure, definition of brake emission families and other changes with the aim of improving the overall protocol.

Proposal to correct editorial errors in Amendment 1.

Proposal to introduce provisions for the Qualification of Human Body Models for pedestrian Head Impact Time (HIT) determination as a DPPS prerequisite.