54. The Chair of the informal group on DETA presented an interim report and informed WP.29 that his group had concluded, at its meeting held in Geneva on 11 March 2013, the first stage. He introduced WP.29-159-21 proposing an updated roadmap on the implementation procedure for a database facilitating the exchange of type approval documentation, including IWVTA. He sought the endorsement by WP.29 on the proposed approach, if possible for the June 2013 session in order to be in the position to insert the appropriate amendments into the revision of the 1958 Agreement. Some concerns were raised and the Chair of the informal group announced that a revised document would be transmitted to the secretariat for its distribution with an official symbol at the June 2013 session.