204 Pa. Code § 91.16
Unless otherwise directed in the Form DB-17 (Authorization to take Deposition), the deponent may be examined regarding any matter not privileged which is relevant to the subject matter of the proceedings. Participants shall have the right of cross-examination, objection and exception. In making objections to questions or evidence, the grounds relied upon shall be stated briefly, but no transcript filed by the notarial officer shall include argument or debate. Objections to questions or evidence shall be noted by the notarial officer upon the deposition, but the notarial officer shall not have the power to decide on the competency of a witness or the relevancy or materiality of evidence. Objections to the competency of a witness or to the relevancy, or materiality of the testimony are not waived by failure to make them before or during the taking of the deposition, unless the ground of the objection is one which was known to the objecting party and which might have been obviated or removed if made at that time.
204 Pa. Code § 91.16