Science & Technology
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Ozone Designation and Classification Information
Ozone Designation and Classification Information
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Nutrient Pollution
Nutrient pollution is one of America's most widespread, costly and challenging environmental problems, and is caused by excess nitrogen and phosphorus in the air and water.
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Curated Topical Reuse Resources
Curated list of topics resources related stormwater.
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Reusing Water for Potable Applications Resources
A page describing reusing water for potable applications
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Water Reuse/Advanced Water Treatment Training Resources
Output from WRAP Action 9.2 – Support and Promote Opportunities for Creating a Skilled Workforce for Water Reuse Applications
Water Reuse/Advanced Water Treatment Training Resources -
Guidance on Qualifying an Analytical Method for Determining the Cellulosic Converted Fraction of Corn Kernel Fiber
Guidance to explain interpretation of regulatory requirements for determining the cellulosic converted fraction of corn kernel fiber.
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Biodiesel Emissions Analysis Program
Using existing data, the EPA's biodiesel emissions analysis program sought to quantify the air pollution emission effects of biodiesel for diesel engines that have not been specifically modified to operate on biodiesel.
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Ultra-Low Sulfur Gasoline Emissions Study
Understanding the effects of gasoline sulfur level on the in-use fleet is important for assessing emissions inventories and impacts of future policy decisions. Test fuels were two non-ethanol gasolines with properties typical of certification fuel.
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June 2018 MOVES Model Review Work Group Meeting Materials
June 2018 MOVES Model Review Work Group Meeting Materials.
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Reports on Cars used for Testing Fuel Economy
This website provides links to EPA's detailed vehicle test data associated with fuel economy program.
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Manufacturer-Run In-Use Testing Program Data for Heavy-Duty Diesel Engines – Test Order Year 2014
This page provides manufacturer-run in-use testing program data from heavy-duty diesel engine manufacturers in compliance with 40 CFR 86 Subpart T for Test Year 2014.
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Manufacturer-Run In-Use Testing Program Data for Heavy-Duty Diesel Engines – Test Order Year 2011
This page provides manufacturer-run in-use testing program data from heavy-duty diesel engine manufacturers in compliance with 40 CFR 86 Subpart T for Test Year 2011.
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Manufacturer-Run In-Use Testing Program Data for Heavy-Duty Diesel Engines – Test Order Year 2013
This page provides manufacturer-run in-use testing program data from heavy-duty diesel engine manufacturers in compliance with 40 CFR 86 Subpart T for Test Year 2013.
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Manufacturer-Run In-Use Testing Program Data for Heavy-Duty Diesel Engines – Test Order Year 2012
This page provides manufacturer-run in-use testing program data from heavy-duty diesel engine manufacturers in compliance with 40 CFR 86 Subpart T for Test Year 2012.
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Fuel Economy
Information on fuel economy labeling, history and trends of fuel economy, testing and data, and information on how federal agencies work together on the issue of fuel economy.
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How SmartWay Advances Sustainable Transportation Supply Chains
This page provides information on how the SmartWay program has achieved reductions in freight transportation-related greenhouse gas emissions and how it will continue to do so with its Vision 2020 strategies.
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Boosting your Freight Decarbonization Journey in SmartWay
EPA’s SmartWay program webinar that learn how they’ve used these outputs to drive innovation, improve efficiency and support sustainability goals for their companies.
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Template for Replacement Engine Exemption Report
This template is for manufacturers of nonroad engines and heavy-duty highway engines to report the number of engines produced under the replacement engine exemption found at 40 CFR 1068.240.
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Vehicles and Engines
On this page you will find links to information about nonroad engines and highway vehicles.
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What If Electric School Buses Could be Used to Supply Power When Off Duty?
Short paper describing the benefits of electric school buses – cleaner air, fewer emissions, and the potential to be roaming power sources.