An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Clean Air Markets

Reporting Data using ECMPS

The Emissions Collection and Monitoring Plan System (ECMPS) is a desktop tool that sources must use to submit monitoring plans, QA data, and emissions data to EPA to comply with the Acid Rain ProgramCross-State Air Pollution Rule (CSAPR), and the Mercury and Air Toxics Standards (MATS).  For general ECMPS questions, contact Louis Nichols or Craig Hillock.

Are You a New User to ECMPS?

Check out this FAQ to learn how to access ECMPS.