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14 Jan 2015
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Comparison of Heavy Duty Hybrid Test Procedures Drafted in GTR No. 4 (USA and US EPA)
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GRPE-70-15
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2015-01-14 |
Status of US EPA program to validate the HILS methodology and resolve error codes. USA US EPA |
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4 Jun 2010
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Comments on the Terms of Reference (US EPA and USA)
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HDH-02-06
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2010-06-04 |
US EPA USA |
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8 Feb 2011
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Invitation to the 5th HDH Informal Group session (US EPA)
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HDH-05-01
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2011-02-08 |
US EPA |
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25 May 2011
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Heavy-duty hybrid powertrain testing (US EPA)
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HDH-05-10
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2011-05-25 |
US EPA |
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5 Dec 2011
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EPA Heavy‐Duty GHG Overview and Hybrid System Testing (US EPA)
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HDH-07-09
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2011-12-05 |
US EPA |
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5 Dec 2011
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Clean Automotive Technology: HHV Component Information (US EPA)
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HDH-07-11
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2011-12-05 |
US EPA |
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12 Oct 2012
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Heavy Duty Hybrid Powertrain Testing (ECCC and US EPA)
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HDH-11-08
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2012-10-12 |
Presentation on Environment Canada and US EPA joint program. ECCC US EPA |
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29 Jul 2013
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Future Heavy-Duty GHG Test Procedure Considerations (US EPA)
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HDH-13-12
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2013-07-29 |
Overview of current US Environmental Protection Agency heavy-duty hybrid powerpack testing activites. US EPA |
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9 Jun 2013
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EPA presentation on issues concerning the validation of heavy-duty hybrid HILS procedures (US EPA)
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HDH-14-06
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2013-06-09 |
US EPA |
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4 Jan 2014
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Adoption of GRPE Heavy-Duty Hybrid new annex to Global Technical Regulation n°4 (US EPA)
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HDH-16-03
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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 |
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4 Jun 2014
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US Adoption of GRPE Heavy-Duty Hybrid new annex to Global Technical Regulation n°4 (US EPA)
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HDH-18-04
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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 |