US Environmental Protection Agency
86 documents
14 Jan 2013 Final ToR for Informal Working Group on Electric Vehicles and Environment (US EPA) GRPE-65-04/Rev.1 2013-01-14 Final Terms of Reference for the informal working group on the environmental performance of electric vehicles. US EPA
14 Jan 2015 Comparison of Heavy Duty Hybrid Test Procedures Drafted in GTR No. 4 (USA and US EPA) GRPE-70-15 2015-01-14 Status of US EPA program to validate the HILS methodology and resolve error codes. USA US EPA
20 Jan 2020 EPA Update on the Cleaner Trucks Initiative (US EPA) GRPE-80-33 2020-01-20 US EPA
4 Jun 2021 IWG RDE (Real Driving Emissions) : Phase 2 Terms of Reference and Rules of Procedure (EU and US EPA) GRPE-83-31 2021-06-04 EU US EPA
31 May 2022 Heavy-Duty Engine and Vehicle Standards: Control of Air Pollution from New Motor Vehicles (US EPA) GRPE-86-33 2022-05-31 US EPA
1 Jun 2022 Life Cycle Analysis: US EPA position (US EPA) GRPE-86-38 2022-06-01 US EPA
14 Oct 2024 USEPA Light/Medium-Duty Vehicle Multipollutant Rulemaking (US EPA) GRPE-91-27 2024-10-14 US EPA
14 Oct 2024 GTR 11: Updating Test Procedures for Nonroad Mobile Machinery (US EPA) GRPE-91-28 2024-10-14 US EPA
14 Oct 2025 A-LCA: Statement from the US EPA on activities (US EPA) GRPE-93-23 2025-10-14 US EPA
4 Jun 2010 Comments on the Terms of Reference (US EPA and USA) HDH-02-06 2010-06-04 US EPA USA
8 Feb 2011 Invitation to the 5th HDH Informal Group session (US EPA) HDH-05-01 2011-02-08 US EPA
25 May 2011 Heavy-duty hybrid powertrain testing (US EPA) HDH-05-10 2011-05-25 US EPA
5 Dec 2011 EPA Heavy‐Duty GHG Overview and Hybrid System Testing (US EPA) HDH-07-09 2011-12-05 US EPA
5 Dec 2011 Clean Automotive Technology: HHV Component Information (US EPA) HDH-07-11 2011-12-05 US EPA
12 Oct 2012 Heavy Duty Hybrid Powertrain Testing (ECCC and US EPA) HDH-11-08 2012-10-12 Presentation on Environment Canada and US EPA joint program. ECCC US EPA
29 Jul 2013 Future Heavy-Duty GHG Test Procedure Considerations (US EPA) HDH-13-12 2013-07-29 Overview of current US Environmental Protection Agency heavy-duty hybrid powerpack testing activites. US EPA
9 Jun 2013 EPA presentation on issues concerning the validation of heavy-duty hybrid HILS procedures (US EPA) HDH-14-06 2013-06-09 US EPA
4 Jan 2014 Adoption of GRPE Heavy-Duty Hybrid new annex to Global Technical Regulation n°4 (US EPA) HDH-16-03 2014-01-04 Memorandum from the US Environmental Protection Agency on the proposed addition of test procedures for heavy-duty hybrid vehicles to the global technical regulation on heavy-duty vehicle emissions and fuel consumption (WHDC) identifying "a number of open issues that are causing concern for the United States and require resolution prior to considering the Annex for adoption". US EPA
4 Jun 2014 US Adoption of GRPE Heavy-Duty Hybrid new annex to Global Technical Regulation n°4 (US EPA) HDH-18-04 2014-06-04 Memorandum from the US EPA providing an overview of obstacles to US adoption of the proposed heavy-duty hybrids amendment and possible remedies to overcome these concerns. This memo addresses remaining concerns beyond those presented earlier in document HDH-16-03. US EPA
19 Dec 2018 RDE GTR: Scope of U.S. Work to Inform Development of GTR (US EPA) RDE-02-10 2018-12-19 US EPA
4 Apr 2019 RDE GTR: Scope of U.S. Work to Inform Development of GTR (US EPA) RDE-04-10 2019-04-04 US EPA
5 Nov 2019 RDE Analysis and Open Source Tool Development (US EPA) RDE-07-14 2019-11-05 US EPA
5 Nov 2019 RDE GTR Development (US EPA) RDE-07-15 2019-11-05 US EPA
5 Dec 2018 US EPA report on its EV power determination validation testing results (US EPA) SPDGTR-00 2018-12-05 US EPA
15 Mar 2010 Draft WLTP test procedures (US EPA) WLTP-DTP-01-02 2010-03-15 US EPA
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
9 Jun 2010 Final Rulemaking to Establish 2012- 2016 Light-Duty Vehicle CAFE and GHG Standards (NHTSA, US EPA, and USA) 2010-06-09 NHTSA US EPA USA
3 Nov 2011 US EPA/NHTSA programs for greenhouse gas emissions and fuel efficiency standards for medium- and heavy-duty engines (USA, US EPA, and NHTSA) WP.29-155-11 2011-11-03 USA US EPA NHTSA
3 Nov 2011 US EPA/NHTSA program for new fuel economy and environment labels for a new generation of vehicles (USA, US EPA, and NHTSA) WP.29-155-12 2011-11-03 USA US EPA NHTSA
16 Nov 2011 Proposal to establish work groups on electric vehicle safety and environmental requirements (EC, NHTSA, US EPA, and MLIT) WP.29-155-38 2011-11-16 EC NHTSA US EPA MLIT
17 Nov 2015 Statement on US EPA Notices of Violation issued to Volkswagen (US EPA) WP.29-167-31 2015-11-17 US EPA
9 Mar 2016 Statement of Edward Nam, Director Air Quality and Modeling Center Office of Transportation and Air Quality U.S. Environmental Protection Agency (US EPA) WP.29-168-17 2016-03-09 US EPA
1 May 2012 US Federal Register Notice: GHG Emissions Standards and Fuel Efficiency Standards (NHTSA and US EPA) WP.29/2012/32/Add.1 2012-05-01 September 2011 notice of final NHTSA fuel consumption standards and final EPA carbon dioxide (CO2) emissions standards for Combination Tractors; Heavy-duty Pickup Trucks and Vans; and Vocational Vehicles, corresponding with the request to list these regulations in the Compendium of Candidate GTR. NHTSA US EPA
1 May 2012 US Federal Register Notice: Motor Vehicle Fuel Economy Label (NHTSA and US EPA) WP.29/2012/33/Add.1 2012-05-01 July 2011 notice of the US EPA and NHTSA joint final rule establishing new requirements for the fuel economy and environment label posted on the window sticker of all new automobiles sold in the U.S., corresponding with the US request to list this rule in the Compendium of Candidate GTR. NHTSA US EPA
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