(a) Interrogatories to parties. After an appeal has been filed with the Board, a party may serve on the other party written interrogatories to be answered separately in writing, signed under oath, and returned within 30 days of receipt by the answering party. Within 30 days after service the answering party may object to any interrogatory and the Board determines the extent to which the interrogatory is permitted.
(b) Admission of facts. After an appeal has been filed with the Board, a party may serve upon the other party a written request for the admission of specified facts. If the request is to admit the genuineness of any document or the truth of any facts stated in a document, a copy of such document shall be served with the request. Within 30 days after receipt of the request, the party served shall answer each requested admission of facts or file objections thereto in writing. The factual propositions set out in the request are deemed admitted, if the answering party, willfully and without good cause, fails to respond to the request for admissions.
(c) Production and inspection of documents. After an appeal has been filed with the Board, a party may serve upon the other party a written request to produce and permit the inspection and copying or photographing of any designated documents, not privileged, regarding any matter which is relevant to the appeal.
(d) Any discovery under this rule shall be subject to the provisions of Rule 18(a) with respect to general policy and protective orders.