25 Pa. Code § 71.18
The provisions of this § 71.18 adopted August 13, 1971, effective August 14, 1971, 1 Pa.B. 1649; amended April 28, 1972, effective May 15, 1972, 2 Pa.B. 753; reserved September 28, 1973, effective October 15, 1973, 3 Pa.B. 2176. Immediately preceding text appears at serial page (11243).