Eastern Technical Associates provides public visible emissions certification programs in Cheyenne and Lander. Choose a Wyoming smoke school location below to learn more about class and field locations, lecture information, fees, and agenda.
ETA’s comprehensive Method 9 classroom lecture is also available in online format. Attendees can access web-based training and participate in the session from the convenience of their office or home.

March 6-7, 2024
Lander, WY Smoke School
Lecture Information
- Held once per week on Mondays
- Start time: 9:00 am EST/ 8:00 am CT/ 7:00 am MT/ 6:00 am PT
- Held virtually via live webinar using Go To Meeting
- Lecture will be a separate registration from the field. To register for a lecture, visit our lecture webinar page
Field Information
- Wednesday & Thursday, March 6 & 7, 2024
- 8:00 am Registration & 8:30 am Start
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Wyoming DEQ OfficeParking Lot510 Meadowview Drive
Lander, WY 82520
October 18-19 2023
Cheyenne, WY Smoke School
Lecture Information
- Held once per week on Mondays
- Start time: 9:00 am EST/ 8:00 am CT/ 7:00 am MT/ 6:00 am PT
- Held virtually via live webinar using Go To Meeting
- Lecture will be a separate registration from the field. To register for a lecture, visit our lecture webinar page
Field Information
- Wednesday & Thursday, October 18 & 19, 2023
- 8:00 am Registration & 8:30 am Start
- Cheyenne Frontier Days Old West Museum
Lot C
4610 Carey Avenue
Cheyenne, WY 82001
Contact Us Today To Learn More About WY Smoke School Programs
Eastern Technical Associates is the smoke school Wyomingites trust for Method 9 opacity certification. Give us a call today at (919) 878-3188 to speak with a visible emissions expert.