Briefly describe the scope and type(s) of discovery available (e.g., depositions, interrogatories, etc.):
Parties are encouraged to engage in voluntary discovery procedures regarding any non-privileged matter relevant to the proceeding. See 19 CFR 354.10. "A party may serve on any other party interrogatories, requests for admissions, or requests for production of documents for inspection and copying." 19 CFR 354.10(b). Additionally, a party may apply for depositions, and upon a showing of good cause the presiding official can order the deposition of any party or under the control or authority of the party. See 19 CFR 354.10(c).