A request for a hearing shall be sent to the OWCP representative named pursuant to Sec. 30.718(f) and shall contain:
(a) A concise notice of the issues on which the provider desires to give evidence at the hearing;
(b) Any request for a more definite statement by OWCP;
(c) Any request for the presentation of oral argument or evidence; and
(d) Any request for a certification of questions concerning professional medical standards, medical ethics or medical regulation for an advisory opinion from a competent recognized professional organization or federal, state or local regulatory body.