231 Pa. Code Rule 4009.24
(a) The written notice of intent to serve a subpoena required by Rule 4009.21(a) shall be substantially in the following form:
NOTICE OF INTENT TO SERVE A SUBPOENA TO PRODUCE
DOCUMENTS AND THINGS FOR DISCOVERY PURSUANT
TO RULE 4009.21
(party) intends to serve a subpoena identical to the one that is attached to this notice. You have twenty (20) days from the date listed below in which to file of record and serve upon the undersigned an objection to the subpoena. If no objection is made, the subpoena may be served.
Date:
… Attorney for