Science & Technology
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Light-Duty Vehicle Trends Since 1975 (Infographic)
Infographic for Light-Duty Vehicle Trends Since 1975
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Baseline Year for the Baseline Year Test (in 40 CFR 93.119)
EPA OTAQ's State and Local Transportation Resources are for air quality and transportation government and community leaders. Updates on the adequacy of state implementation plans (SIPs), and transportation conformity regulations and guidance
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Estimating Greenhouse Gas Emissions
Resources for state and local planners interested in estimating on-road greenhouse gas emissions and assessing the impact of specific travel efficiency strategies.
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AVERT - Tutorial Homepage
Find the index of Training Modules for AVERT, with instructions for using the training and what you'll need. AVERT can be used to estimate the potential of energy efficiency and renewable energy programs to reduce air pollution.
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Lead (Pb) Air Quality Standards - Documents from Review Completed in 2016
Lead (Pb) Air Quality Standards - Documents from Review Completed in 2016
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Best Practices Near Roadway
The publication "Best Practices for Reducing Near-Road Pollution Exposure at Schools" helps school communities identify strategies for reducing traffic-related pollution exposure at new and existing schools.
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Clean Diesel Technology
This page provides links to the Clean Diesel verification process for manufacturers and the verified lists and information for fleet owners and operators.
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AVERT Tutorial: Technical Requirements
Describes the technical requirements for downloading and using AVERT's Main Module.
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What are the Computer Hardware and Software Requirements for Installing and Running MOVES?
See More Frequent Questions about MOVES and Related Models. MOVES is designed to run on a single personal computer with a Windows 10 or 11 operating system. The recommended minimum hardware for a desktop or laptop computer running MOVES are: 64-bit CPU with 4 or more cores: Intel i7 or…
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What are the features available on the MOVES “Advanced Features” panel, and when would I use them?
The MOVES graphical user interface (GUI) includes a panel for “Advanced Features,” which allows modelers to edit RunSpec inputs for preaggregation options and select input databases created by MOVES tools. The panel also includes some options that are obsolete or intended only for MOVES testing and development work. Each of…
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How can I run MOVES3 for the entire U.S or for an entire year?
See More Frequent Questions about MOVES and Related Models. The most accurate national MOVES runs are done for every county and hour and then averaged together in the output, but, depending on your intended use of the results, it’s also possible to pre-aggregate the MOVES inputs to run the nation…
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AVERT Tutorial: Statistical Module: Overview
Find directions and steps for using the Statistical Module.
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Hydrant Sampler Procedure and Parts Lists
Procedure and parts to buy for sampling drinking water at a hydrant.
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Is Anaerobic Digestion Right for Your Farm?
Series of questions to find out if your facility may be a good candidate for anaerobic digestion.
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Calculated Flush Time (CFT) or Calculated Flush Volume (CFV) Approach for Representative Distribution System Chlorine and Disinfection Byproduct (DBP) Sample Collection from Building Taps
Approach to collecting drinking water samples from building taps.
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U.S. Government’s International Methane Mitigation Activities: 2022 Accomplishments
The U.S. Government’s Global Methane Initiative Accomplishments ANNUAL REPORT (2022)
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U.S. Government GMI Accomplishments: 2017 Annual Report
The U.S. Government’s Global Methane Initiative Accomplishments ANNUAL REPORT (2016)
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Alternative Means of Emission Limitation for Leak Detection and Repair
This page consolidates EPA action on AMEL requests for LDAR.
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Consolidated Human Activity Database (CHAD)
The CHAD database includes nearly 180,000 individual study days of detailed human behavior, with each day broken down into individual hours and activity types.
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2016v2 Platform
The 2016v2 emissions modeling platform