37 C.F.R. § 41.157
(b) Time and location.
(2) Other testimony.
(c) Notice of deposition.
(3) In the case of direct testimony, at least three business days prior to the conference in paragraph (c)(1) of this section, the party seeking the direct testimony must serve:
(4) Notice of the deposition must be filed at least two business days before a deposition. The notice limits the scope of the testimony and must list:
(e) Manner of taking testimony.
(5) When the testimony has been transcribed, the witness shall read and sign (in the form of an affidavit) a transcript of the deposition unless:
(6) The officer shall prepare a certified transcript by attaching to the transcript of the deposition a certificate in the form of an affidavit signed and sealed by the officer. Unless the parties waive any of the following requirements, in which case the certificate shall so state, the certificate must state: