Smoke School Information in Colorado
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 »
IN-PERSON SMOKE SCHOOLS:
Compliance Assurance offers 1 public smoke school in Colorado. Classes are available in Arvada. Smoke School Schedule for CO »
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.
Colorado Acceptance Status for VirtualOpacity® — EPA ALT-152A
Accepted.
Colorado Visible Emissions / Opacity Standard
The opacity limit for Colorado is 20% opacity (general statewide standard; applies to all areas), as established under 5 CCR 1001-3 (AQCC Reg. No. 1), Sec. II.A.1; exceptions II.A.2-6.
Compliance is demonstrated via EPA Method 9 (40 CFR 60, Appendix A, July 1992 version referenced in regulation).
Averaging period: 6-min (24 readings at 15-sec intervals), Method 9. Note: Sec. III.D fugitive-dust 20% guideline is explicitly NON-enforceable per III.D.1.e.(iii)
Regulation No. 1 Section II.A states no person shall emit any air pollutant in excess of 20% opacity. The regulation specifically defines 'Intermittent Sources' by reference to EPA Method 9 observation requirements.
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 Colorado
Website: https://cdphe.colorado.gov/
Phone: (303) 692-3100
Address: 4300 Cherry Creek Dr. S, Denver, CO 80246-1530
Denver Department of Environmental Health
Phone: (720) 865-5413
Address: 200 W 14th Ave, Dept 310, Denver, CO 80204
Compliance Assurance Public In-Person Smoke Schools in Colorado
| Date | School Name | CAA ID |
Additional Session(s) (May be second day or afternoon session) |
|---|---|---|---|
| 10/23/2026 | Denver, CO | 8526 |