| R55-13-12 | Updated list of discussion items for the 13th R55 informal group session | |
| R55-13-32 | Waiting list of GRRF request concerning the update of UN R55 | |
| R55-07-20 | UN R55- Item 7: Attachment point | |
| R55-13-08 | UN R55: Demonstration of speed reduction proposal | |
| R55-12-03 | Working draft proposal to amend UN R55 with regard to vehicle combination applications | |
| R55-12-10 | UN R55: Proposal for restructuring provisions on vehicle combination applications | |
| R55-12-20/Rev.1 | UN R55: Proposal for restructuring provisions on vehicle combination applications | |
| R55-12-28 | Comments on the old Dutch couplings application | |
| R55-13-07/Rev.1 | Working draft amendment to UN R55 with regard to speed reduction, speed dependence, and heavy transports | |
| R55-13-03/Rev.2 | UN R55: Updated proposal for restructuring provisions on vehicle combination applications | |
| R55-12-05 | UN R55: Working draft proposal for allowable performance values | |
| R55-12-19/Rev.1 | UN R55: Revised working draft proposal for allowable performance values | |
| R55-13-09 | UN R55: Minimum articulation angles of couplings mounted to the vehicles | |
| R55-13-10 | UN R55: Overview of angles of rotation | |
| R55-13-30 | UN R55: Minimum articulation angles of couplings mounted to the vehicles | |
| R55-13-05 | UN R55: Theoretical design assessment |