1 Pa. Code § 33.1
Pleadings, submittals or other documents filed with an agency in any proceeding shall clearly show the file number or similar identifying symbols, if any, and title of the proceeding before the agency. They shall also show, in the title of the particular pleading, submittal or other document filed, the name of the person in whose behalf the filing is made. If more than one person is involved, a single name only need be included in the title.
1 Pa. Code § 33.1
This section cited in 16 Pa. Code §42.12 (relating to caption); 34 Pa. Code §111.11 (relating to content and form); 34 Pa. Code §111.32 (relating to form/content); 34 Pa. Code §131.21 (relating to identifying number); 34 Pa. Code §131.31 (relating to form of pleadings); 52 Pa. Code §1.31 (relating to requirements for documentary filings); 52 Pa. Code §1001.31 (relating to requirements for documentary filings); 55 Pa. Code §41.11 (relating to title of document); 61 Pa. Code §703.2 (relating to petition content); and 61 Pa. Code §703.5 (relating to other submissions).