7 C.F.R. § 1.647
(a) Request for subpoena.
(2) A party may request a subpoena for a senior Department employee only if the party shows:
(b) Service.
(3) The person serving the subpoena must:
(i) Prepare a certificate of service setting forth:
(c) Witness fees.
(d) Motion to quash.
(2) The motion must be filed:
(3) The ALJ may quash or modify the subpoena if it:
(e) Enforcement. For good cause shown, the ALJ may apply to the appropriate United States District Court for the issuance of an order compelling the appearance and testimony of a witness or the production of evidence as set forth in a subpoena that has been duly issued and served.
Hearing, Briefing, and Decision