Data and Tools
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EPA US06 or Supplemental Federal Test Procedure (SFTP)
The page contains a graph of the EPA US06 or Supplemental Federal Test Procedure (SFTP) driving cycle.
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LA92 "Unified" Dynamometer Driving Schedule
The page contains a graph of the LA92 “Unified” Dynamometer Driving Schedule.
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Vehicle Weight Classifications for the Emission Standards Reference Guide
This web page shows a chart that categorizes all vehicles by their Gross Vehicle Weight Rating.
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EPA Federal Test Procedure (FTP)
This page contains a graph of the EPA Federal Test Procedure (FTP) driving cycle.
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EPA SC03 Supplemental Federal Test Procedure (SFTP) with Air Conditioning
The page contains a graph of the EPA SC03 Supplemental Federal Test Procedures (SFTP) with air conditioning driving cycle.
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Drinking Water Mapping Application to Protect Source Waters (DWMAPS) Data Layers
Describes and provides links to the Drinking Water Mapping Application to Protect Source Waters
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Summary of Hawai'i's Water Reuse Guideline or Regulation for Industry
Hawai'i (State Regulation) | Source water: Treated municipal wastewater | End use: Water reuse for industry
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Instrument Air Controllers
Natural gas-powered pneumatic controllers can be converted to instrument air-powered pneumatic controllers by substituting the pressurized natural gas with compressed air.
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Analytical Methods and Open Spectral (AMOS) Database User Guide
AMOS Analytical Methods and Open Spectral Database Help
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Map of U.S. Coal Mine Methane Current Projects and Potential Opportunities
CMM Opportunities Map
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DIN431
Dinosaur NM (DIN431) CASTNET site location,
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GLR468
Glacier NP (GLR468) CASTNET site location,
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New Approach Methods Training - 2025 Society of Toxicology Satellite Meeting
NAMs Training at the 2025 SOT Annual Meeting
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Models for Pesticide Risk Assessment
EPA considers the toxicity of the pesticide as well as the amount of pesticide to which a person or the environments may be exposed in risk assessment. Scientists use mathematical models to predict pesticide concentrations in exposure assessment.
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Timeline of Sulfur Dioxide National Ambient Air Quality Standards (NAAQS)
See the history of limits to the level of sulfur dioxide (SO2) in ambient air, set through the NAAQS review and rulemaking process under the Clean Air Act. This includes both primary and secondary standards.
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Photochemical Air Quality Modeling
Photochemical air quality models have become widely recognized and routinely utilized tools for regulatory analysis and attainment demonstrations by assessing the effectiveness of control strategies.
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Technical Data and Reports on Particulate Matter (PM) Measurements and SIP Status
EPA collects data from the states and regions on their air quality, including levels of pollutants such as PM, and state implementation plan (SIP) progress. This information is compiled in a database, and used to create reports, trend charts, and maps.
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Emissions Testing Technical Resources at the National Vehicle and Fuel Emissions Laboratory (NVFEL)
This page provides detailed technical information on the emissions test methods, analysis, and calculations performed at the laboratory.
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Response Surface Model (RSM)-based Benefit Per Ton Estimates
The tables below are updated versions of the tables appearing in "The influence of location, source, and emission type in estimates of the human health benefits of reducing a ton of air pollution" (Fann, Fulcher and Hubbell 2009).
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Antimicrobial Testing Methods & Procedures: EQ-03-10
Information about ATMP - SOP Calibration and Maintenance of Weigh Balances - EQ-03-08