Eastern Technical Associates provides public Method 9 opacity certification programs in Pueblo and Denver. Choose a Colorado smoke school location below to learn more about class and field locations, lecture information, fees, and agenda.
For students who are seeking online visible emissions training, we do offer a classroom lecture in an online format. Students can access web-based training and participate in the session from the convenience of their office or home.
October 8-9, 2025
Denver, CO Smoke School
Visible Emissions 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 Opacity Certification
- Tuesday & Wednesday, October 8 & 9, 2025
- 8:00 am Registration/check-in & 8:30 am Start
- Jefferson County Fairgrounds
Rodeo Arena Parking Lot
499 McIntyre St
Golden, CO 80401
October 10, 2025
Pueblo, CO Smoke School
Visible Emissions 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 Opacity Certification
- Thursday, October 10, 2025
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8:00 a.m. Registration & 8:30 a.m. Start
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City Park
Ball Field #4
401 Parkside Lane
Pueblo, CO 81005
Learn More About Colorado Smoke School Programs
Eastern Technical Associates is the smoke school people in Colorado trust for EPA Method 9 opacity certification. Give us a call today at (919) 878-3188 to speak with a visible emissions expert.