132. The Chair of the informal working group reported about the progress made by the group after 15 sessions. He added that the addition of technical issues (i.e. rolling resistance, modification of the scope) had resulted in a certain delay in the development of Phase I of the UN GTR (WP.29-155-41), which would have also an effect in the development of Phase II. He requested to extend the timeline for Phase I by 12 months, until June 2013 and added than an estimation for the completion of Phase II would be made at a later stage. AC.3 gave its consent for this extension.