50. GRSP noted that Revision 3 of the 1958 Agreement was expected to enter into force by mid-September 2017. It was also noted that at the November 2017 session of WP.29 the following documents would be discussed: (a) an explanatory document on UN Regulation No. 0 and (b) a question and answer document on Revision 3 of the 1958 Agreement and © a revision of the guidance document of administrative and regulatory procedures. Finally, GRSP was informed that the permanent missions of Contracting Parties represented in EXCOM did not yet reached an agreement on the financing of DETA for the period 2018-2019.