2 U.S.C. § 391 — Certification and filing of depositions

(a) Sealing of papers; deposit with clerk: The officer taking a deposition must certify that the witness was properly sworn in and that the deposition accurately records the witness's testimony. The officer must then seal the deposition securely, along with any papers the witness produced and the deposition's notice or stipulation (if it was taken without notice), in an envelope labeled with the contested election case's title and marked "Deposition of [witness's name]." The officer must file it with the Clerk within thirty days after the witness finishes testifying. (b) Notification of filing: After filing the deposition, the officer must promptly tell the parties that it has been filed. (c) Copy of deposition to parties or deponents: If a party or the person deposed pays a reasonable fee — no more than what a U.S. district court would charge in the district where the deposition happened — the officer must give them a copy of the deposition.