Virginia Regulatory Town Hall
Department of Environmental Quality
Air Pollution Control Board
Existing Stationary Sources [9 VAC 5 ‑ 40]
Action is Exempt from Article 2 of the Administrative Process Act
Opacity Source Surveillance Methods (Rev. F07)
Action 2505
General Information
Action Summary This action incorporates the requirements of Chapter 148 of the 2007 Acts of the Assembly. Specifically, 9 VAC 5-40-20 A 3/9 VAC 5-50-20 A 3 have been modified to indicate that compliance with opacity may be determined in one of the following ways: (i) compliance with Reference Method 9 or any alternative method approved by EPA. (ii) evaluation of data resulting form use of continuous monitoring providing that certain criteria are met, or (iii) use of any other method approved by EPA.
Chapters Affected
  VAC Chapter Name Action Type
Primary 9 VAC 5-40 Existing Stationary Sources Amend Existing Regulation
Other chapters
  9 VAC 5 - 50 New and Modified Stationary Sources
Executive Branch Review This Action is exempt from Article 2 of the Administrative Process Act. The normal executive branch review process is not required. As such, it can be submitted directly for publication and is effective upon publication.
RIS Project Yes  [000899]
Associated Mandates Air Pollution- methods to determine opacity
New Periodic Review This action will not be used to conduct a new periodic review.
Stages associated with this regulatory action.
Stage ID Stage Type Status
4374 Final Stage complete. This regulation became effective on 12/12/2007.
Contact Information
Name / Title: Mary E. Major 
Address: 629 East Main Street
P.O. Box 1105
Richmond, VA 23218
Email Address:
Phone: (804)698-4423    FAX: (804)698-4510