Virtual Smoke School Status and Opacity Training in Mississippi

EPA Method 9 (ALT-152) certification, opacity standards, and air quality agency information for Mississippi

VIRTUAL SMOKE SCHOOLS:
Mississippi has accepted VirtualOpacity® for EPA Method 9 certification.
The Federal EPA has approved CAA's VirtualOpacity® VR smoke school. Read the Federal EPA's approval letter »
Learn about VirtualOpacity »

IN-PERSON SMOKE SCHOOLS:
Compliance Assurance offers 2 public smoke schools in Mississippi. Classes are available in Flowood and Gulfport. Smoke School Schedule for MS »

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.

Mississippi Acceptance Status for VirtualOpacity® — EPA ALT-152A

Accepted.

Mississippi Acceptance Letter »

Mississippi Visible Emissions / Opacity Standard

The opacity limit for Mississippi is 40% opacity from manufacturing/industrial/commercial/waste point sources; startup exception <=15 min per startup, <=3 startups per stack per 24 hr; soot blowing <=60% <=10 min per BBtu per 24 hr; 40% equivalent opacity extends to all contaminants, as established under 11 Miss. Admin. Code Pt. 2, R. 1.3.A(1)-(3); equivalent opacity R. 1.3.B.

Compliance is demonstrated via EPA Method 9; MDEQ administers smoke school certification (Visible Emissions Evaluation Training).

Averaging period: No specific 6-minute averaging stated; exception: >40% but โ‰ค60% allowed for soot blowing (aggregate โ‰ค10 min/day per billion BTU); startup: >40% for โ‰ค15 min per startup, โ‰ค3 startups per 24 hours

Mississippi's 40% general standard is higher than most states' 20%. MDEQ administers its own visible emissions evaluation training and certification program. Mississippi currently has no nonattainment areas for NAAQS.

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 Mississippi

Mississippi Department of Environmental Quality - Office of Pollution Control
Website: https://www.mdeq.ms.gov/
Phone: (601) 961-5171
Address: P.O. Box 2261, Jackson, MS 39225

Compliance Assurance Public In-Person Smoke Schools in Mississippi

Date School Name CAA
ID		 Additional Session(s)
(May be second day or afternoon session)
09/16/2026 Gulfport, MS 8569
10/28/2026 Jackson, MS 8606