Documentation

April 2020 version: This full 2017 NEI release supersedes the partial February 2020 and August 2019 NEI releases. The 2017 NEI is the first NEI released incrementally prior to this full release. The April 2020 NEI adds the following components that were not provided in the February 2020 release: nonpoint data category (including biogenics, commercial marine vessels, and rail line emissions), onroad data category, minor data additions and corrections provided by state, local, and tribal partners, and the components of particulate matter.

2017 NEI Data and Documentation

• 2017 NEI Technical Support Document (TSD)
• Supporting Data and Summaries

2017 NEI Development Documentation

2017 NEI Plan

• 2017 NEI Plan
• Appendix 1 - Suggested SLT Timeline and QA Checks(2 pp, 29 K)
• Appendix 2 - 2017 NEI Plan Code Changes(7 pp, 111 K)
• Appendix 3 - Draft Schedule for Potential Point SCC Revisions(1 pg, 34 K)
• Appendix 4 -2017 Nonpoint Proposed OptionGroup-OptionSet(1 pg, 72 K)

2017 NEI Resources for State, Local, Tribal Agencies

Submittal Instructions and Supporting Data for 2017 NEI

Nonpoint

• Expected Pollutant List for Nonpoint SCCs(1 pg, 179 K)

Commercial Marine

• Commercial Marine Vessel GIS Shape Files (port and underway, current and retired)(24 MB)
• Methodology Documentation for EPA's Commercial Marine Emissions Estimates(3 MB)

April 2020 version: This full 2017 NEI release supersedes the partial February 2020 and August 2019 NEI releases. The 2017 NEI is the first NEI released incrementally prior to this full release. The April 2020 NEI adds the following components that were not provided in the February 2020 release: nonpoint data category (including biogenics, commercial marine vessels, and rail line emissions), onroad data category, minor data additions and corrections provided by state, local, and tribal partners, and the components of particulate matter.

• Point (ZIP CSV) (171.0 MB)
• Onroad (ZIP CSV) (48.3 MB)
• Nonroad (ZIP CSV) (74.3 MB)
• Nonpoint(ZIP CSV) (119 MB)

Additional Summary Data

• Tribal Lands Emissions Summaries

  • Sector (xls) (294 KB) (Includes both criteria and hazardous pollutants)
  • Tier 1 (xls) (24.9 KB) (Includes criteria pollutants only)
  • Tribal Fires (ZIP) (6.20 MB)

• Other Emissions Summaries

  • Facility-level by Pollutant: (ZIP) (29.6 MB)
  • Events - Fires: (ZIP) (5.39 MB)
  • Biogenics: (XLSX) (2.40 MB)
  • All Sectors: (ZIP)(101 MB) National-county/tribe aggregated - sector file
  • Tier Summaries:  National/State/County summaries for Tier 1, Tier 2 and Tier 3

Files that can be used for air quality modeling can be found at the 2017 Air Emissions Modeling page.

The facility query provides a map of facilities for a selected state along with tabular data for the selected pollutant(s).  Please note that the map only displays if there are less than 25 pollutants selected.  If more than 25 pollutants are selected then only the tabular data will be displayed.