Request for authorisation to develop a new GTR.

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

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

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

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

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 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 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 for editorial corrections.

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

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

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

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.