2 Va. Admin. Code § 20-30-20
Derived from VR115-04-20 § 2.1, eff. July 13, 1990; amended, Virginia Register Volume 10, Issue 24, eff. September 21, 1994; Volume 20, Issue 23, eff. August 26, 2004; renumbered Virginia Register Volume 29, Issue 1, eff. October 10, 2012.