An appointing authority may waive the probationary period for a position if the former employee is reinstated within 2 years after resignation. If more than 2 years have expired since the former employee's resignation, the former employee shall serve the probationary period prescribed for the job classification to which reinstated.
4 Pa. Code § 603a.5
This section cited in 4 Pa. Code § 603a.21 (relating to status after involuntary movement).