Discussion paper on automatic fire suppression systems for the compartment where the internal combustion engine propelling the vehicle related to the risk of Boiling Liquid Expanding Vapor Explosion.

Proposal to clarify the meaning of “set pressure” and its application in the requirement to ensure that the primary LNG relief valve does not open below 1.5 MPa.

The Working Party on the Transport of Dangerous Goods (WP.15) has noted that problems could arise during the approval of vehicles intended for the carriage of explosive substances and articles (Class 1) for vehicles intended for the carriage of liquids having a flash-point of not more than 60°C. (EX/III and FL vehicles) fitted with a camera monitoring system which complied with the requirements of UN R46.

The European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR) stipulates that the electrical circuits must be broken within 10 seconds after operation of the battery master switch. This might conflict with paragraph 16.1.1. of UN R46 which requires that, after each engine switch-off (intended use), the camera-monitor system remains operational for a period of at least 120 seconds.

This proposal aims to resolve the disparity between UN R46 and requirements for ADS vehicles.

Proposal to clarify that all speedometers and/or odometers installed on a vehicle in the case of more than one shall comply with the requirements of UN R39.

Proposal to clarify that high capacity vehicles and vehicles with competing objectives do not have to meet the requirement for the Subsection Frontal Visible Volume (SFVV), to describe how the SFVV should be calculated to take account of the reduced volume for vehicles with narrower cab designs, and to revise and correct the transitional included in document GRSG/2024/6.

Proposal to add a direct vision case figure for ambinocular vision to avoid misinterpretation of the indirect vision case figure and to modify the impact safety requirements for FLVCS and Detection system for consistency with CMS requirements of UN R46.

Proposal from the task force on UN R39 Mileage Accuracy to amend and supplement the existing requirements for odometers to include provision on:

• accuracy of the on-board odometer mileage values,
• anti-tampering of the on-board odometer mileage values,
• accuracy and anti-tampering of the odometer mileage values displayed to the driver.

Proposal to clarify the vehicle conditions of the test methods for detection systems in Annex 10, including to specify that not only rear hatches or trunk lids but also the tail gates of cargo trucks and van-type vehicles should be closed or latched in their normal vehicle operating condition during the test.

Proposal to update the references to the three-dimensional H-point (3-D “H”-point) measurement and calibration procedure pursuant to updates and transfer of related provisions from the Consolidated Resolution on the Construction of Vehicles (R.E.3) to Mutual Resolution No. 1 (M.R.1).

Proposal to update the references to the three-dimensional H-point (3-D “H”-point) measurement and calibration procedure pursuant to updates and transfer of related provisions from the Consolidated Resolution on the Construction of Vehicles (R.E.3) to Mutual Resolution No. 1 (M.R.1).

Proposal to update the references to the three-dimensional H-point (3-D “H”-point) measurement and calibration procedure pursuant to updates and transfer of related provisions from the Consolidated Resolution on the Construction of Vehicles (R.E.3) to Mutual Resolution No. 1 (M.R.1).

Proposal to update the references to the three-dimensional H-point (3-D “H”-point) measurement and calibration procedure pursuant to updates and transfer of related provisions from the Consolidated Resolution on the Construction of Vehicles (R.E.3) to Mutual Resolution No. 1 (M.R.1).

Proposal to correct references to paragraphs 1.3.2. instead of 3.1.2. and 1.3.1. instead of 3.1.

Proposal to amend UN R125 pursuant to the establishment of a new UN Regulation on Field of Vision Assistant. This document includes the update to the references to the three-dimensional H-point (3-D “H”-point) measurement and calibration procedure pursuant to the updates and transfer of relevant provisions from the Consolidated Resolution on the Construction of Vehicles (R.E.3) to Mutual Resolution No. 1 (M.R.1).

Proposal to specify the requirements for the headform test. This test should not be mandatory for vehicles where the protection of the occupant’s head is not achieved by the glazing itself, rather by a restraint system or other means.

Proposal to stipulate that “vehicle alarm systems (VAS) approved in accordance with the provisions of Regulation No. 163 on Alarm System are deemed to comply with Part II of this Regulation.”

Note from the chair of GRVA.

Proposal to introduce definitions of “escape hatch” and “emergency exit”, a test requirement for these devices, and provisions to ensure that elements that can move and enter the residual space of passengers after the bus overturning are present during testing, including provisions on fire extinguishers.

Proposal to introduce provisions for the specifications and calibration procedure of the 3-D “H”-point machine and the procedure for determining the “H”-point and the actual torso angle for seating positions in motor vehicles, to be used in all referenced UN Regulations and GTRs.

Revised proposal intended to supersede the text proposed in GRSG/2024/4 (proposal to clarify that indicators, their identifications and identifications of controls need not be illuminated under certain conditions).