Draft proposal of the informal group on UN Regulation No. 55 to modify Figure 17 – annex 5 – Dimensions of spring-mounted steering wedges.

Information on TAAM discussions concerning cases where the sum of the mass of the towing vehicle (M) [T] and the mass of the towed vehicle (TM) [R or C] is higher than the maximum combination mass (MC) set for the towing vehicle.

Working draft proposal of the UN R55 informal group for a uniform procedure to rate couplings for extreme heavy transport configurations based upon a speed-reduction method. The intent is to address conditions where there are no coupling products with appropriate certified performance values.

Proposal for a higher vertical load for drawbar couplings with a jaw that pivots about the horizontal transverse axis.

Proposal to delete the volume and shape limits of the fume cupboard described in Annex 8 (Test to determine the vertical burning rate of materials) and replace these with the performance specification that the fume cupboard dimensions shall not affect the test results. The proposal also sets a minimum sample size of 375 × 170 mm under paragraph 3.1. of Annex 8.

Correspondence concerning the French position on this work item.

Draft text to introduce provisions for minimum articulation of couplings in order to prevent damage from maneuvers that exceed coupling capacities.

Revised approach to resolving the issues raised in Romania’s proposal GRSG/2015/21 to redefine the measurement criteria for determining appropriate seat spacing. This proposal has been developed collaboratively by Romania, OICA, and CCLCR with respect to discussions held by the type approval authorities of the member states of the European Union (TAAM). The proposal includes the use of a new testing gauge for the H dimension measurement.