18 Va. Admin. Code § 65-20-110
§ 54.1-2400 of the Code of Virginia.
Derived from VR320-01-2 § 3.5, eff. October 24, 1990; amended, Virginia Register Volume 8, Issue 25, eff. October 7, 1992; Volume 11, Issue 14, eff. May 3, 1995; Volume 15, Issue 7, eff. January 20, 1999; Volume 22, Issue 12, eff. March 22, 2006; Volume 36, Issue 11, eff. March 5, 2020.