Science & Technology
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Draft Test Protocol for Idling Reduction Technologies (IRTs) for Trucks
This document contains test protocols for Truck IRTs as part of the SmartWay Verification Process.
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Background Documents on SmartWay Aerodynamics and Trailers
These documents provide information on SmartWay’s trailer and aerodynamic device program and how you can save fuel.
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Certification Template and Guidance Document for Electric Motorcycles
Template and guidance document for the certification process for electric motorcycles.
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Light-Duty: Family Naming Conventions
How to create Positions 5-12 of your Engine Family name for Light-Duty Durability Group.
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Radiation at Superfund Sites
Access information and guidance for EPA remedial project managers about the cleanup of radioactive contamination at Superfund sites.
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RadNet near-real-time air data
RadNet air monitoring results are now available on the RadNet Dashboard
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E15 Compatibility with UST Systems Statement
Review EPA's statement about the growth of fuel containing E15 and the compatibility of E15 with underground storage tank (UST) systems.
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Stationary Source Program Methods Format
Descriptions and formats for creating a method for the Office of Air Quality Planning and Standards Stationary Source Program.
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2016 Version 2 Technical Support Document
This TSD describes how the emission inventories were prepared for air quality modeling by the U.S. Environmental Protection Agency (EPA) for criteria air pollutants to represent the years of 2016, 2023 and 2028.
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Greenhouse Gas Emissions Model (GEM) for Medium- and Heavy-Duty Vehicle Compliance
EPA’s Greenhouse Gas Emissions Model (GEM) is a free, desktop computer application that estimates the greenhouse gas (GHG) emissions and fuel efficiency performance of specific aspects of heavy-duty vehicles.
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StreamCat Metrics REST API
StreamCat Metrics REST API, documentation for the API that allows the return metrics from StreamCat data tables
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National Rivers and Streams Assessment 2018-19 Technical Support Document
PDF of the National Coastal Condition Assessment 2015 Technical Support Document.
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Ecoregional Results - National Wetland Condition Assessment 2021
Results for the National Lakes Assessment 2012, including key findings, national results, ecoregional results, and state highlights.
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Online Resources for CAMEO Users
A list of online resources for CAMEO users
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Sanitary Surveys for Recreational Waters
A sanitary survey is a tool that allows users to investigate the sources of pollution and conditions in a recreational water body. The EPA developed a free application to help waterbody managers conduct sanitary surveys and store their data.
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StreamCat Metrics and Definitions
The Stream-Catchment (StreamCat) dataset is an extensive collection of landscape metrics for 2.6 million streams and associated catchments within the conterminous U.S.
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Level III and IV Ecoregions by State
Information and links to downloadable maps and datasets for Level III and IV ecoregions, listed by state. Ecoregions are areas of general similarity in the type, quality, and quantity of environmental resources.
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What is the National Rivers and Streams Assessment?
The National Rivers and Streams Assessment (NRSA) is a statistical survey of the condition of our Nation’s rivers and streams.
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Small Drinking Water Systems Webinar Series
Schedule for EPA's Office of Research and Development and Office of Water's monthly webinar series: challenges and treatment solutions for small drinking water systems. Certificates of attendance offered for each webinar.
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U.S. Department of Energy, National Renewable Energy Laboratory: IT Sustainability Case Study
U.S. Department of Energy, National Renewable Energy Laboratory: IT Sustainability Case Study