Smoke School Information in Ohio
Smoke school and state air quality information
VIRTUAL SMOKE SCHOOLS:
The Federal EPA has approved CAA's VirtualOpacity® VR smoke school. See below for this state's acceptance status. Read the EPA's approval letter »
Learn about VirtualOpacity »
VIRTUAL SMOKE SCHOOLS:
There are no upcoming public smoke schools in OH. Check below for the status of our virtual reality implementation for Ohio, or email us to request a school in your area.
PRIVATE IN-PERSON SMOKE SCHOOLS:
Compliance Assurance offers private, on-site smoke schools that are affordable and convenient. Learn more »
Have questions? Call us at 901-381-9960 or email info@compliance-assurance.com.
Ohio Acceptance Status for VirtualOpacity® — EPA ALT-152A
Accepted.
Ohio Visible Emissions / Opacity Standard
The opacity limit for Ohio is 20% opacity (6-min avg) stack standard; may exceed 20% for <=6 consecutive min per 60 min but never >60% (6-min avg); fugitive dust 20% (3-min avg), as established under OAC 3745-17-07(A)(1)(a)-(b) (stack); fugitive dust at (B)(1).
Compliance is demonstrated via USEPA Method 9 or continuous opacity monitoring (COMS); 15-second interval readings for most applications.
Averaging period: 6-minute average; non-exempted opacity >20% must be <1.10% of 6-minute averages per calendar quarter (COMS compliance)
Ohio's rule is notable for its tiered COMS compliance standard: a source is in compliance if nonexempt 6-min averages exceeding 20% are less than 1.10% of total 6-min averages in a calendar quarter, and no nonexempt 6-min average exceeds 60%. Rule also covers coke oven batteries, electric arc furnaces, and fugitive dust from roadways and parking areas separately.
Last verified July 8, 2026
Note: Regulations change — always verify current requirements with your state's air quality agency before making compliance decisions. This page is for informational purposes and is not legal advice; consult a qualified attorney or environmental compliance professional for guidance specific to your facility.
Air Quality Agency Information for Ohio
• Website: https://epa.ohio.gov/dapc
• Phone: (614) 644-2270
• Address: 50 West Town Street, Suite 700, P.O. Box 1049, Columbus, OH 43216-2049
Southwest Ohio Air Quality Agency
• Website: https://www.southwestohioair.org/
• Phone: (800) 889-0474
• Address: 250 William Howard Taft Rd., Cincinnati, OH 45219
Regional Air Pollution Control Agency (Dayton)
• Website: https://www.rapca.org/
• Phone: (937) 225-4435
• Address: 117 S. Main Street, Dayton, OH 45422-3280
Cleveland Department of Public Health - Division of Air Quality
• Website: https://www.clevelandhealth.org/
• Phone: (216) 664-2297
• Address: 75 Erie View Plaza, Suite 200, Cleveland, OH 44114
Akron Regional Air Quality Management District
• Website: https://araqmd.org/
• Phone: (330) 375-2480
• Address: 1867 W. Market Street, Akron, OH 44313