Science & Technology

Regulatory Impact Analysis for the Final Clean Air Interstate Rule

Learn about the health and welfare benefits and the costs of the Clean Air Interstate Rule (CAIR) and compares the benefits to the costs of implementing CAIR in 2010 and 2015.

Ground-Level Ozone: Occurrence and Transport in Eastern North America

Read a 1999 report that details the results of cooperative efforts to describe ground-level ozone concentration and transport in the border region of the eastern United States and Canada.

Session 9 - Tools/Emerging Technologies (2015 EIC)

Papers and presentations submitted during the 2015 Emission Inventory conference

Session 7 - Mobile Source (2015 EIC)

Presentations/papers given by keynote speakers at the 2015 Emission Inventory Conference

Lightning Round Presentations (2019 EIC)

Papers and Presentations that were limited to under five minutes per speaker.

Application Deadline Extended: Potential Inclusion of Ecolabels in EPA’s Recommendations

Announcing the final unreasonable risk determination for PCE

Volume 3 - Area Sources and Area Source Method Abstracts

Nonpoint (area) source emission reference materials from the EIIP. Provides nonpoint source guidance on planning, emissions estimation, data collection, inventory documentation and reporting, and quality assurance/quality control.

Watershed Academy Webcast - The Condition of U.S. Lakes and Streams: Findings from the National Aquatic Resource Surveys

Archive for the Watershed Academy Webcast titled “The Condition of U.S. Lakes and Streams: Findings from the National Aquatic Resource Surveys” held on March 23, 2017

Using CAST to Develop Implementation Plans that Meet Loading Targets in the Chesapeake Bay Watershed

Archive for the Watershed Academy Webcast titled “Using CAST to Develop Implementation Plans that Meet Loading Targets in the Chesapeake Bay Watershed” held on November 9, 2017

Using the Surface Water Toolbox for Estimating Critical Flow Statistics

: Archive for the Watershed Academy Webcast titled “Using the Surface Water Toolbox for Estimating Critical Flow Statistics” held on February 8, 2018

Watershed Academy Webcast - Model My Watershed: A Tool for Water Resource Management

Archive for the Watershed Academy Webcast titled “Model My Watershed: A Tool for Water Resource Management” held on March 9, 2017

Volume 2 - Point Sources

Point source emission reference materials from the Emissions Inventory Improvement Program (EIIP). Provides point source guidance on planning, emissions estimation, data collection, inventory documentation and reporting, and quality assurance/quality contr

EPA Releases the First Ever National Wetland Condition Assessment

Flyer, presentation, and additional resources for the Thursday, June 16th, 2016 webcast

HFC Reclaim and Innovative Destruction Grants

HFC Reclamation and Innovative Destruction Grants - information and notice of funding opportunity

How's My Waterway December Webcast

Special Webcast on How’s My Waterway

Can I get access to the Emissions Inventory System if I am not a data provider to EPA?

The Emission Inventory System (EIS) is a secured database for EPA and State/Local and Tribal Air Agencies only. The EIS is used to develop the National Emission Inventory (NEI). While you cannot have access to EIS, you can have access to the current and past NEIs through EPA’s NEI website…

Last published: May 7, 2025