1 Pa. Code § 35.124
The agency head or the presiding officer before whom the hearing is held shall cause to be entered upon the record all appearances, with a notation in whose behalf each appearance is made. Included in the appearances shall be staff counsel participating, and a notation shall be made in the record of the names of the members of the technical staff of the agency participating, including accountants, engineers and other experts, who have been assigned to work on the investigation or to assist in the trial of the case.
1 Pa. Code § 35.124
This section cited in 7 Pa. Code §179.51 (relating to generally); 7 Pa. Code §179.53 (relating to Commission hearings); 10 Pa. Code § 3.11 (relating to hearing rules); 34 Pa. Code §131.53a (relating to consolidated hearing procedure); 34 Pa. Code §131.56a (relating to withdrawal of appearance); 34 Pa. Code §131.57 (relating to compromise and release agreements); 34 Pa. Code §131.202 (relating to first hearing information and stay); 34 Pa. Code §131.203 (relating to hearing procedures); 40 Pa. Code §15.46 (relating to hearings); 52 Pa. Code §5.241 (relating to appearances); 58 Pa. Code 494a.1 (relating to generally); 58 Pa. Code §494a.2 (relating to oral hearings); 61 Pa. Code §703.31 (relating to disposition of petitions); and 61 Pa. Code §703.35 (relating to failure to appear at hearing).