14. The World Forum noted the programme of work and documentation (ECE/TRANS/WP.29/2013/1). WP.29 representatives were invited to revise the document and to communicate to the secretariat any amendments deemed necessary. The secretariat presented WP.29-159-01 on the list of informal working groups of WP.29 and its subsidiary Working Parties (GRs). WP.29 agreed to fix 31 December 2015 as the expiry date of the groups not having an agreed date. The World Forum noted that the list of publications for the biennium 2014-2015 for the Transport Subprogramme (ECE/TRANS/2013/15) contained a slot for updating the publication “WP.29, how it works, how to join it” in order to incorporate the revised 1958 Agreement.