1 Pa. Code § 31.28
(a) An agency may deny, temporarily or permanently, the privilege of appearing or practicing before it in any way to a person who is found by the agency after notice and opportunity for hearing in the matter:
(b) For the purposes of subsection (a), practicing before an agency shall include, but shall not be limited to:
This section cited in 7 Pa. Code § 179.65 (relating to suspension and disbarment); 10 Pa. Code § 401.020 (relating to professional responsibility); 34 Pa. Code § 95.92 (relating to contemptuous conduct); 34 Pa. Code § 131.54 (relating to manner and conduct of hearings); 49 Pa. Code § 31.103 (relating to applicability of other laws and rules); 49 Pa. Code § 31.115 (relating to disciplinary sanctions); 52 Pa. Code § 1.27 (relating to suspension and disbarment); 52 Pa. Code § 1001.27 (relating to suspension and disbarment); 58 Pa. Code § 499a.7 (relating to suspension and disbarment); and 61 Pa. Code § 702.22 (relating to limited practice before the Board).