How does your smoke school provider stack up against ETA?
Vendor comparison chart and 10 questions to ask

35 Years and Counting

Eastern Technical Associates continues to be the world leader in Visible Emissions Observer Training programs and opacity consulting. ETA certifies more regulatory and private industry representatives than any other provider.

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Consulting Services

Eastern Technical Associates is recognized as the authority in opacity consulting. Our experience and extensive knowledge of opacity issues allows us to provide a broad scope of services.

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Online Lecture

Join our knowledgeable instructors for the comprehensive Method 9 Smoke School lecture from the convenience of your office or home! Our Live, web-based training classes are offered every month.

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Recent News
Happy Holidays!

Our office will close on Friday, December 14th, 2018 and will re-open on Wednesday, January 2nd, 2019. If you need to reach us over the break, please do so via email. You can email Debbie with registration questions, Sherri for billing questions, or Kristy for QSTI Examination questions....

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January 15-17