Eastern Technical Associates provides public Method 9 opacity certification programs in Boise. Select our Idaho 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 own home.

September 17-18, 2025

Boise, ID 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

  • Wednesday & Thursday, September 17 & 18, 2025
  • 8:00 am Start
  • Idaho Department of Transportation
    3311 West State Street
    Boise, ID 83705

More Details

Learn More About Idaho Smoke School Programs

People across Idaho and nationwide trust Eastern Technical Associates for EPA Method 9 opacity certification. Give us a call today at (919) 878-3188  to speak with a visible emissions expert.