21 Mar 2014 Proposal for draft Amendment 3 to Global Technical Regulation No. 4 GRPE/2014/11 2014-03-21
8 Mar 2014 Extension of the scope of the mandate to the GRPE Informal Group on Heavy-Duty Hybrids for the alignment between gtr nº 4 and gtr nº 11 (EU) WP.29-162-08 2014-03-08
7 Apr 2014 Authorization to extend the scope of the HDH informal group mandate to include alignment of GTR No. 4 and No. 11 WP.29/AC.3/38 2014-04-07