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SmartWaySM Truck Emissions Test ProtocolNOTE: You will need Adobe Acrobat Reader, available as a free download, to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader. Recognizing that advancements in heavy-duty vehicle technology offer opportunities for cleaner, more fuel-efficient medium and heavy-duty vehicles, EPA’s SmartWay Transport Partnership is collaborating with the transportation industry to develop a SmartWay Truck Emissions Test Protocol that better quantifies the benefits of various heavy vehicle designs and technologies. EPA seeks to create a test protocol to compare the relative emissions and fuel-efficiency of heavy-duty vehicles. However, without a standard, objective, stand-alone test method, it is difficult to develop a common understanding of how to assess criteria air pollutants, greenhouse gases, and fuel-efficiency of heavy-duty vehicles, including vehicles with hybrid powertrain, aerodynamic configuration, and other advanced vehicle designs and components. Such information can assist the Agency in establishing performance-based eligibility criteria for the next generation of SmartWay trucks, and to quantify the benefits of hybrid vehicles for vehicle-based certification. Such a standard methodology does not currently exist so EPA has developed this working draft SmartWay Truck Emissions Test Protocol (PDF) (76 pp, 900K, EPA-420-P-07-003, November 2007) as a starting point for discussion among stakeholders. This working draft is a first step toward a performance-based specification that would be technology-neutral, able to quantify a broad range of heavy vehicle configurations and applications, and able to measure technical innovations as they emerge. EPA is soliciting additional information and critical input to address areas of uncertainty and clarify outstanding issues. SmartWay Truck Emissions Test Protocol Working Draft: Technical Presentations from the March 19-20 Workshop and Call for Written Comments EPA’s SmartWay Transport Partnership is collaborating with the transportation industry and other interested stakeholders to develop a SmartWay Truck Emissions Test Protocol that quantifies the benefits of various heavy vehicle designs and technologies. Working draft of the protocol: SmartWay Truck Emissions Test Protocol (PDF) (76 pp, 900K, EPA-420-P-07-003, November 2007) EPA held a public workshop in Washington, DC, on March 19-20, 2008, to discuss the protocol. The purpose of the workshop was to present the current working draft, provide highlights of comments received to date, and to invite further collaboration with interested parties to share data and conduct tests and analyses to further develop and validate the test procedure. The Agency appreciates the valuable oral and written comments it received before and during the workshop.To provide for the broadest public input, EPA is extending the time period for additional written comments and other information including test data, analyses, or offers to collaborate on testing, until April 30, 2008. All relevant information can be sent to the following EPA staff:
Joseph Bachman (bachman.joseph@epa.gov) Comments that pertain to heavy-duty hybrid vehicle testing may be referred to: Han Lim (lim.han@epa.gov) The technical presentations given by EPA staff at the March 19-20, 2008, public workshop can be accessed via the links below: Summary of Draft Test Protocol (PDF) (13 pp, 112K) SmartWay Testing: Initial Truck Testing (PDF) (10 pp, 249K) EPA Planned Hybrid Truck Testing at Environment Canada (PDF) (14 pp, 82K) Draft Test Protocol Methodology (PDF) (16 pp, 404K) Determining Track-to-Chassis Dynamometer Correlation (PDF) (12 pp, 76K) Drive Cycle Development (PDF) (24 pp, 351K) Metrics and Modeling General Topics (PDF) (6 pp, 62K)
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