Virginia Regulatory Town Hall
Department of Environmental Quality
State Water Control Board
Certification of Nonpoint Source Nutrient Credits (formerly 4VAC50-80) [9 VAC 25 ‑ 900]
Action is Exempt from Article 2 of the Administrative Process Act
Amendment to change the Certification of Nonpoint Source Nutrient Credits (9VAC25-900 et seq.) in response to Chapter 723 of the 2023 Virginia Acts of Assembly
Action 6267
General Information
Action Summary This final exempt regulatory action is necessary to implement Chapter 723 of the 2023 Acts of Assembly, which provides that in the certification and recertification of credits under this subsection, the Department may substitute a delivery factor that is deemed by the Director to be based on the best available scientific and technical information appropriate for the tributaries located outside of the Chesapeake Bay watershed as an alternative to any delivery factor derived from the application of the Chesapeake Bay Program watershed model. This action will amend 9VAC25-900, Certification of Nonpoint source Nutrient Credits, to include this new statutory provision.
Chapters Affected Only affects this chapter.
Executive Branch Review This Action is exempt from Article 2 of the Administrative Process Act, but falls within the Executive Branch and will be reviewed by the Governor's Office.
RIS Project Yes  [7568]
Associated Mandates Chesapeake Bay; nutrient credit calculations outside the watershed
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
10054 Final Stage complete. This regulation became effective on 11/08/2023.
Contact Information
Name / Title: Rebeccah W. Rochet, P.E   / Deputy Director, Division of Water Permitting
Address: 1111 East Main Street, Suite 1400
P.O. Box 1105
Richmond, VA 23218
Email Address:
Phone: (804)801-2950    FAX: ()-    TDD: ()-