27. The Chair of the IWG introduced GRRF-86-22 with a memorandum on a “global marking for tyres”. He invited the Contracting Parties to the 1998 Agreement to review this memorandum and assess, whether the approach for tyre global marking in UN GTR No. 16 could be supported and whether it would be feasible to recognize a global tyre marking as an alternative to the existing national/regional tyre marking. The Chair invited GRRF delegates to respond to the memorandum.