Smoke School &
Method 9 Certification

Smoke school is the training and field test that qualifies you to read visible emissions (opacity) under EPA Method 9. You learn the method, then read a series of black and white smoke plumes from a smoke generator.

Opaque runs public smoke schools across the U.S. Check the public class schedule or find your state in the list above. No class near you? We can bring private onsite training to your facility.

Public field recertification typically runs $250–$275, and initial certification (lecture and field test) typically $350, depending on location. See current prices and register in our online store. VR certification is $250 per token. Private onsite pricing depends on your location and group size; request a quote.

Six months. To stay certified, repeat the field qualification test before your certification expires.

The smoke generator produces 25 black and 25 white plumes at different opacities. To pass, no single reading can be off by more than 15% opacity, and your average error must be 7.5% or less for each color. See the full Method 9 certification guide.

Yes. Our Method 9 e-lecture lets you complete the lecture online at your own pace before your field test. Check that your state or permit accepts an online lecture.

Public classes suit individuals and small groups. Private onsite training brings the instructor and smoke generator to your facility, so your whole team qualifies on your schedule.

Yes. Our VR certification is approved under the name OpacityVision VR. Acceptance can vary by state, permit and jurisdiction, so confirm with your regulator.

EPA Methods 9, 22 and 203, through public classes, private onsite training and VR.