1 Pa. Code § 33.42
This section cited in 34 Pa. Code §111.15 (relating no other pleadings allowed); 34 Pa. Code §131.34 (relating to other filings); 34 Pa. Code §131.35 (relating to amendments to pleadings); 34 Pa. Code §131.36 (relating to joinder); 34 Pa. Code §131.57 (relating to compromise and release agreements); 52 Pa. Code §1.82 (relating to withdrawal or termination); 52 Pa. Code §1001.82 (relating to withdrawal or termination of uncontested matter or proceedings); 55 Pa. Code §41.25 (relating to amendment or withdrawal of legal documents); and 61 Pa. Code §703.9 (relating to withdrawal or termination of appeal).