67 Pa. Code § 493.2
The following words and terms, when used in this chapter, have the following meanings, unless the context clearly indicates otherwise:
Legal pleadings-The formal written statements of the parties to a legal proceeding regarding their respective claims and defenses, such as preliminary objections, answer, petition for rule to show cause, and the like.
Legal process-The summons, complaint, petition for viewers or other similar pleading which initiates a legal proceeding.
Subpoena-A court order requiring the appearance of one or more named persons at a specified time and place for the purpose of testifying in a matter before the court.
Subpoena duces tecum-A court order requiring the custodian of specified documents to deliver them at a specified time and place for use as evidence in a matter before the court.
67 Pa. Code § 493.2