Air Emissions Inventories
National Emissions Inventory (NEI)
- NEI Data and Documentation
Comprehensive and detailed estimate of air emissions. Learn more.
- Air Pollutant Emissions Trends Data
Current emissions trends data and documentation of estimation methods. Learn more.
- Pollutant Emissions Summary Files
Previous versions of NEI summaries. Learn more.
Resources
- Training
Procedures for loading data into the EIS. Learn more.
- Conferences
Exchange of information from State, Local, Tribes and government agencies. Learn more.
Tools
- Emission Inventory Tools
Bridge Tools report NEI datasets to the EIS and the PM Augumentation is a stand-alone software developed by EPA. Learn more.
- Air Emissions Sources
Plots, charts, and graphs of the 2014 Air Emission Inventory. Learn more.
Emission Inventory System (EIS)
- EIS Gateway
Provides access to emissions inventory data. Learn more.
- EIS User's Manual and How To's
Provides short instructions to assist users in submitting and retrieving various types of data from EIS. Learn more.
Guidance
- Emissions Inventory Guidance
Provides the latest available guidance on developing emission inventories to meet State Implementation Plan (SIP) requirement. Learn more.
Regulations
- Air Emissions Reporting Requirement (AERR)
Requires state and local agencies to collect and submit emissions data. Learn more.