18 December 2009 Proposal for Supplement 16 to Regulation No. 23 WP.29/2010/14	WP.29/2010/14	2009-12-18
16 July 2009 Proposal for draft Supplement 16 to Regulation No. 23 (Poland) GRE/2009/42	GRE/2009/42	2009-07-16
18 March 2009 Proposal for draft Supplement 16 to Regulation No. 23 (Poland) GRE-61-08	GRE-61-08	2009-03-18
30 September 2009 Collective amendment to UNECE Regulations Nos. 4, 6, 7, 23, 38, 50, 77, 87, 91 and 119 (Germany) GRE-62-10	GRE-62-10	2009-09-30