154. AC.3 was informed by the Chair of GRBP, the representatives of Russian Federation and the United States of America about various ongoing activities on tyres, in particular with the aim to align UN Regulations on tyres with the recently adopted Amendment 2 to UN GTR No. 16. AC.3 noted that, based on their outcome, a proposal for Amendment 3 would be prepared.

155. The representative of ETRTO confirmed that several items of relevance to the UN GTR were in development such as the definition of radial tyres.

156. AC.3 agreed to keep this issue on the agenda.