Annex 1 of UN R55 concerns the type approval communication form. Item 9.3. requires information “For Class A mechanical coupling devices or components, including towing brackets”. Poland proposes to add “if fitted” to the description in order to avoid interpretations that brackets must be part of the approval (i.e., the approval may concern the coupling ball without additional attachments).
20. The expert from Poland introduced GRRF-86-34 proposing a clarification of item 9.3 in Annex 1 to UN Regulation No. 55. GRRF requested the secretariat to distribute this proposal with an official symbol at its September 2018 session.