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AP-42: Compilation of Air Pollutant Emissions Factors from stationary sources is EPA's primary compilation of emission factors for stationary sources. AP-42 contains emission factors, emission...
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EPA regulations codified in 40 CFR Part 52, 59 - 63 require affected sources to perform emissions source tests, conduct continuous emissions monitoring, and submit compliance and emissions...
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The Title V Permitting Statistics Inventory contains measured and estimated nationwide statistical data, consisting of counts of permitted sources, types of permits issued, and the timeliness of...
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OAR's RACT, BACT, LAER Clearinghouse (RBLC) database summarizes air pollution control technology information from EPA, state, local and tribal air permitting actions across the U.S. The acronyms...
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The EPA Control Measure Dataset is a collection of documents describing air pollution control available to regulated facilities for the control and abatement of air pollution emissions from a...
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The Emissions Modeling Clearinghouse (EMCH) supports and promotes emissions modeling activities both internal and external to the EPA. Through this site, the EPA distributes and documents...
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OTS is an internal EPA national tribal database to assist the Regions and HQs in tracking tribal performance information.
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The Monitoring Knowledge Base (MKB) is a compilation of emissions measurement and monitoring techniques associated with air pollution control devices, industrial process descriptions, and...
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The Air Emissions Trends site provides national trends of criteria pollutant and precursor emissions data based on the the National Emissions Inventory (NEI) from 1970 - the latest NEI year.
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The EPA Control Strategy Tool (CoST) is a software tool for projecting potential future control scenarios, their effects on emissions and estimated costs. This tool uses the NEI and the Control...
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The CMAQ Model Outputs data asset includes current and projected future levels of ambient concentrations and deposition to support regulatory impact analyses.
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