United States of America
14 Apr 2010 Presentation: WLTP Test Procedures for Hybrid Electric Vehicle Testing (USA and US EPA) WLTP-DTP-01-12 2010-04-14 USA US EPA
14 Apr 2010 Presentation: WLTP Test Procedures for Chassis Dynamometer Testing (USA and US EPA) WLTP-DTP-01-13 2010-04-14 USA US EPA
22 Sep 2010 40 CFR 1065 N20 measurement devices (USA and US EPA) WLTP-DTP-AP-02-11 2010-09-22 USA US EPA
16 Jun 2010 United States of America position regarding the development of the Worldwide Light-duty Test Procedure (WLTP) (USA) 2010-06-16 USA
28 Aug 2009 Proposal to develop a new global technical regulation on Worldwide harmonized Light Vehicle Test Procedures (EU, Japan, and USA) 2009-08-28 EU Japan USA
18 Dec 2009 Proposal to develop a new global technical regulation on worldwide harmonized light vehicle test procedures (Japan, EU, and USA) WP.29/AC.3/26 2009-12-18 Japan EU USA