Stack Testing Companies

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The information in this list was developed by organizations other than EPA and is provided by the Emission Measurement Center (EMC) for informational purposes only. Publication of the information does not constitute endorsement by EPA or EMC of any company or organization mentioned.

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The Stack Testing Companies List is voluntarily maintained by the Source Evaluation Society (SES). The information provided for the database is submitted by each company and, as such, it is the responsibility of each company on the list to periodically update and monitor their information to ensure the correctness and accuracy of that information. Failure to do so can result in that company being removed from the list. Also note that the Stack Testing Companies List is a separate database independent of the SES membership database. No cross-checking of the information is made by SES and being an SES member does not mean that your company is automatically added to this list.


Updated November 21, 2023

Stack Testing Companies