1 Pa. Code § 35.169
Except as otherwise provided in these rules, when exhibits of a documentary character are offered in evidence, copies shall be furnished to the presiding officer and to the participants present at the hearing, unless the agency head or the presiding officer otherwise directs. In addition, unless otherwise directed by the agency head or the presiding officer, three copies of each exhibit of documentary character shall be furnished for the use of the agency.
1 Pa. Code § 35.169
This section cited in 1 Pa. Code § 35.30 (relating to filing of petitions to intervene); 1 Pa. Code § 35.165 (relating to public documents); 1 Pa. Code § 35.167 (relating to records in other proceedings); 4 Pa. Code §89.29 (relating to evidence); 4 Pa. Code §265.3 (relating to level II hearings); 10 Pa. Code § 3.11 (relating to hearing rules); 12 Pa. Code §81.209 (relating to rules of evidence not to apply); 22 Pa. Code §121.9 (relating to administrative loan collection review procedures); 34 Pa. Code §131.34 (relating to other filings); 34 Pa. Code §131.53 (relating to procedures subsequent to the first hearing); 34 Pa. Code §131.53a (relating to consolidated hearing procedure); 34 Pa. Code §131.203 (relating to hearing procedures); 37 Pa. Code §21.55 (relating to evidence); 40 Pa. Code §15.51 (relating to evidence); 52 Pa. Code §5.409 (relating to copies and form of documentary evidence); 52 Pa. Code §1005.149 (relating to copies and form of documentary evidence); and 61 Pa. Code §702.6 (relating to formal rules of evidence).