39 C.F.R. § 956.18 Interrogatories to parties, admission of facts, and production of documents.
Title 39 - Postal Service
(a) After an answer has been filed, a party may serve on the other party written interrogatories to be answered separately in writing, signed under oath and returned within 30 days. Upon timely objection by the party, the presiding officer will determine the extent to which the interrogatories will be permitted. The scope and use of interrogatories will be controlled by §956.17. (b) After an answer has been filed, a party may serve upon the other party a request for the admission of specified facts. Within 30 days after service, the party served shall answer each requested fact or file objections thereto. The factual propositions set out in the request shall be deemed admitted upon the failure of a party to respond to the request for admission. (c) Upon motion of any party showing good cause therefore, and upon notice, the presiding officer may order the other party to produce and permit the inspection and copying or photocopying of any designated documents or objects, not privileged, specifically identified, and their relevance and materiality to the cause or causes in issue explained, which are reasonably calculated to lead to the discovery of admissible evidence. If the parties cannot themselves agree thereon, the presiding officer shall specify just terms and conditions in making the inspection and making the copies and photographs.
Title 39: Postal Service
PART 956—RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO DISCIPLINARY ACTION FOR VIOLATION OF RESTRICTIONS ON POST-EMPLOYMENT ACTIVITY
§ 956.18 Interrogatories to parties, admission of facts, and production of documents.

