15 Apr 2016 Draft report of the 20th IWVTA informal group session IWVTA-21-01 2016-04-15
20 May 2016 Provisional agenda for the 21st IWVTA informal group session IWVTA-21-02 2016-05-20
16 Jun 2016 IWVTA informal working group "To Do List" under Step 1 IWVTA-21-03 2016-06-16
16 Jun 2016 Draft report of the IWVTA informal group to the 169th WP.29 session IWVTA-21-04 2016-06-16