52 Pa. Code § 3.9
The provisions of this § 3.9 adopted November 21, 1986, effective November 22, 1986, 16 Pa.B. 4564; amended December 2, 1988, effective January 3, 1989, 18 Pa.B. 5451; reserved April 28, 2006, effective April 29, 2006, 36 Pa.B. 2097. Immediately preceding text appears at serial page (263606).