An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Air Emission Measurement Center (EMC)

EMC Instructional Material

Guideline Documents - These documents were developed to clarify undefined technical areas of methods and performance specifications.

Information Documents - These documents provide technical information necessary for regulatory agencies to make decisions about acceptance of data and alternative methods and monitoring.

Meetings, Conferences, Workshops - A list of upcoming and past meetings, conferences, and workshops presented by the Emission Measurement Center.