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.

Clean Air Markets

Air Emissions Testing Body (AETB)

On March 10, 2011, EPA issued a final rule requiring all Part 75 relative accuracy test audits and stack tests performed under Part 75 Appendix E or section 75.19 be performed by an Air Emission Testing Body (AETB) that meets certain competency standards, including experience and knowledge of test methods for individuals conducting the tests.

Offending Air Emissions Testing Bodies

An owner or operator who has requested information from an AETB under Part 75, Appendix A, §6.1.2(g) who believes that the information provided by the AETB was either incomplete or inaccurate may request the Administrator's assistance in remedying the alleged failures. Upon such a request, if the Administrator concurs that the information submitted to a source subject to Part 75 by an AETB is either incomplete or inaccurate, the Administrator will provide the AETB a description of the failures to be remedied. The Administrator's determination of completeness and accuracy of information will be solely based on the provisions of ASTM D7036-04 and Part 75. The Administrator may post the name of the offending AETB on EPA websites, if within 30 days of the Administrator having provided the AETB a description of the failures to be remedied, the AETB does not satisfactorily respond to the source and email a notification of the response to If, after the AETB's name is posted, the Administrator determines, in consultation with the source, that the AETB's response is sufficient, the AETB's name will be removed from the EPA websites.

Questions can be directed to Travis Johnson ( or mailed to the EPA address listed with the emissions monitoring contacts.

« Return to PGVP/AETB

Top of Page