58 Pa. Code § 137.4
The provisions of this § 137.4 amended November 23, 1973, effective November 24, 1973, 3 Pa.B. 2728; amended November 28, 1980, effective November 29, 1980, 10 Pa.B. 4468; amended July 10, 1981, effective July 11, 1981, 11 Pa.B. 2491; reserved June 19, 1987, effective July 1, 1987, 17 Pa.B. 2464. Immediately preceding text appears at serial pages (63565) and (83613) to (83614).