4 Va. Admin. Code § 20-620-50
§ 28.2-201 of the Code of Virginia.
Derived from VR450-01-0081 § 5, eff. January 1, 1993; amended, Virginia Register Volume 10, Issue 10, eff. January 1, 1994; Volume 11, Issue 5, eff. October 28, 1994; Volume 11, Issue 14, eff. March 9, 1995; Volume 11, Issue 17, eff. April 25, 1995; Volume 13, Issue 14, eff. March 1, 1997; Volume 14, Issue 9, eff. January 1, 1998; Volume 14, Issue 16, eff. April 1, 1998; Volume 15, Issue 14, eff. March 1, 1999; Volume 16, Issue 14, eff. March 1, 2000; Volume 16, Issue 20, eff. May 25, 2000; Volume 17, Issue 14, eff. March 1, 2001; Volume 18, Issue 14, eff. March 5, 2002; Volume 18, Issue 22, eff. June 19, 2002; Volume 19, Issue 14, eff. March 1, 2003; Volume 20, Issue 16, eff. March 26, 2004; Volume 21, Issue 14, eff. March 1, 2005; Volume 23, Issue 15, eff. March 1, 2007; Volume 24, Issue 15, eff. March 1, 2008; Volume 26, Issue 14, eff. March 1, 2010; Volume 27, Issue 14, eff. March 1, 2011; Volume 28, Issue 14, eff. March 1, 2012; Volume 29, Issue 15, eff. March 1, 2013; Volume 32, Issue 21, eff. June 1, 2016; Volume 33, Issue 15, eff. February 28, 2017; Volume 34, Issue 17, eff. April 1, 2018; Volume 35, Issue 2, eff. September 1, 2018; Volume 38, Issue 19, eff. May 1, 2022; Volume 40, Issue 18, eff. April 1, 2024.