4 Va. Admin. Code § 25-31-40
The division may approve modifications or amendments to any drainage, reclamation and operation plan required under Chapter 12 ( § 45.2-1200 et seq.) of Title 45.2 of the Code of Virginia and provisions of these regulations. All modifications or amendments shall be valid only when approved in writing.
§ 45.2-103 of the Code of Virginia.
Derived from Virginia Register Volume 19, Issue 24, eff. September 11, 2003; amended, Virginia Register Volume 38, Issue 13, eff. March 31, 2022.