OICA proposed an upgraded table of items (see Table 1 below), including a row regarding the definition of a dolly. A debate took place with regard to the braking performance of a dolly: central axle trailer (N) vs. front axle of a semi-trailer (DK). Braking force application would be different according to the definition. The option 1 is limited because the coupling parameters are different to those of central axle trailer.

The group was informed about the ongoing discussions on the revision of ISO 11992, where dolly has 2 definitions: converter dolly and link trailer. After some debate, the group agreed that there is a need for 2 definitions of dolly with regard to coupling, i.e rigid drawbar vs. hinged drawbar (see figure 1 in the meeting report). The question remained as to whether two definitions of dolly are necessary with regard to braking.