22 Pa. Code § 213.22
(a) New members of the System, or former members returning to school service, are not eligible to make joint coverage member contributions. These contributions shall be limited to members who meet all the following criteria:
The provisions of this § 213.22 amended October 16, 1998, effective October 17, 1998, 28 Pa.B. 5226. Immediately preceding text appears at serial page (227293).