The text prepared by the informal group of experts on Regulation No. 55 to introduce amendments on the test procedure and installation of couplings belonging to classes K and L.

Working draft amendment to UN R55 from the Informal Group on Amendments to UN R55.01.

Expanded version of the earlier information in document R55-08-13.

KBA has noticed that class H50 couplings are not defined and so proposes to add this class and definitions to UN R55.

The pending Revision 3 to the 1958 Agreement opens the way for virtual or simulation testing for use in type approvals. This presentation considers the proposed amendment and its application to mechanical coupling approvals.

Working draft proposal from the informal group on Regulation No. 55 to update the provisions concerning Class K hook-type couplings when coupled with class L toroidal drawbar eyes.

Working draft proposal of the informal group on UN Regulation No. 55 to introduce amendments on:
(a) Requirements on remote indication;
(b) Availability of information on coupling fixing points for A50X couplings;
(c) On lateral strength of drawbars;
(d) Includes a new class definition for fully automatic drawbar couplings.

Draft proposal by the informal group on UN Regulation No. 55 to introduce amendments concerning coupling applications in multi-vehicle combinations.

Reformatted working draft text prepared by the informal group on UN Regulation No. 55 to introduce provisions for agricultural couplings and related applications.

UN R55 Revision 2 draft as amended by GRRF/2014/28 (GRRF/2015/7, Supplement 4 to the 01 series), GRRF/2015/14, and R55-08-05.

Class S couplings refer to non-standard national/regional couplings that remain in use despite the broad trend towards harmonization around an agreed set of couplings specifically covered by other UN R55 classes. The aim of this proposal is to tighten and clarify the requirements for such couplings while discouraging the development of new non-standard Class S couplings (such that new designs would result in new classes if needed).

Second revision of the draft text proposing to introduce amendments on the test procedure and installation of couplings belonging to classes K and L.

Australia Road Research Board (ARRB) Internal Report related to ISO/TC22/SC15/WG4 N 535 Annex 5.

Proposal to introduce amendments on applications in multi-vehicle combinations.

Proposal to introduce amendments on:
a) Requirements on remote indication;
b) Availability of information on coupling fixing points for A50X couplings;
c) On lateral strength of drawbars;
d) Includes a new class definition for fully automatic drawbar couplings.

Proposal to introduce amendments on the test procedure and installation of couplings belonging to class K and L.

The text reproduced below was prepared by the experts of the informal group on UN Regulation No. 55 and introduces amendments on:
a) Requirements on remote indication;
b) Availability of information on coupling fixing points for A50X couplings;
c) On lateral strength of drawbars;
d) Includes a new class definition for fully automatic drawbar couplings.

List of pending proposals for the update to UN R55 from GRRF participants.