Northwest Opacity Certification

Northwest Opacity Certification


In order for the Submit Buttons to work on the registration form or any other form on this web site you must first download it to your computer, then fill it out using Adobe Acrobat, then click the Submit Button.

Our Spring 2024 Schedule is now available, Click Here for Schedule and Registration Form

Our Workbook For Initial Class Is Available by CLICKING HERE

Part 1 Visual Emissions Training and Certification

Part 2 Completing The Field Observation Form

Initial Class Exam

To Download a Printable or Fillable Copy, Right Click on the above Link and choose Save Link As, then choose a location on your Computer where you want to save it.

Valued Customer:

Northwest Opacity Certification (NOC) is pleased to provide Visible Emission Evaluation (VEE) Training and Certification in Oregon and, Washington.

Northwest Opacity Certification:

1.     Has an EPA audit that certifies NOC as following strict EPA Method 9 Regulations.

2.     Is recognized by the California Air Resources Board (CARB) for Field Certification.

3.     Has over 50 years of combined VEE staffing experience!

4.    Broke new ground in the Northwest by introducing a simpler, more economical method for test scoring!

5.    Continuously seeks new opportunities to verify EPA Method 9 conformation and improve operations.

6.   Dedicates itself to conducting all VEE Observation Certifications according to strict EPA Method 9 Regulations.


Northwest Opacity Certification Is:


Regulation EPA-600/477-027b Section cites, “…it is recommended observers attend the classroom training at 3-year intervals to review proper field observation techniques and method changes…”


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Yakima Regional Clean Air Agency
186 Iron Horse Court, Suite 101
Yakima, WA. 98901
Phone: (509) 834-2050

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