4 Va. Admin. Code § 20-270-30
§ 28.2-201 of the Code of Virginia.
Derived from VR450-01-0036 § 3, eff. December 1, 1985; amended, Virginia Register Volume 4, Issue 20, eff. May 23, 1988; Volume 5, Issue 8, eff. January 1, 1989; Volume 5, Issue 19, eff. May 4, 1989; Volume 5, Issue 22, eff. July 1, 1989; Volume 11, Issue 7, eff. January 1, 1995; Volume 11, Issue 14, eff. March 2, 1995; Volume 18, Issue 14, eff. March 5, 2002; Volume 20, Issue 19, eff. May 1, 2004; Volume 20, Issue 26, eff. August 6, 2004; Volume 21, Issue 25, eff. July 29, 2005; Volume 23, Issue 17, eff. March 30, 2007; Volume 24, Issue 19, eff. April 30, 2008; Volume 25, Issue 16, eff. March 26, 2009; Volume 27, Issue 21, eff. June 1, 2011; Volume 29, Issue 8, eff. November 26, 2012; Volume 30, Issue 7, eff. November 21, 2013; Volume 30, Issue 24, eff. July 1, 2014; Volume 36, Issue 23, eff. July 5, 2020; Volume 37, Issue 7, eff. November 1, 2020; Volume 37, Issue 24, eff. July 5, 2021; Volume 40, Issue 24, eff. July 5, 2024.