6 Mar 2013 Consistency between the Convention on Road Traffic (1968) and Vehicle Technical Regulations WP.1/2011/4/Rev.1 2013-03-06
22 Oct 2013 Consistency between the Convention on Road Traffic (1968) and Vehicle Technical Regulations WP.1/2014/4/Rev.3 2013-10-22
20 Dec 2013 Report of the Working Party on Road Traffic Safety on its 67th session WP.1/143 2013-12-20