39 CFR §3012.6

1. (a)Commission decision-making personnel who receive ex parte communications relevant to the merits of the proceeding shall decline to listen to such communications and explain that the matter is pending for determination. Any recipient thereof shall advise the communicator that the communication will not be considered, and shall promptly and fully inform the Commission in writing of the substance of and the circumstances attending the communication, so that the Commission will be able to take appropriate action.
2. (b)Commission decision-making personnel who receive, or who make or knowingly cause to be made, ex parte communications prohibited by this part shall promptly place, or cause to be placed, on the public record of the proceeding:
   1. (1)All such written communications;
   2. (2)Memoranda stating the substance of all such oral communications; and
   3. (3)All written responses, and memoranda stating the substance of all oral responses, to the materials described in paragraphs (b)(1) and (2) of this section.
3. (c)Requests for an opportunity to rebut, on the record, any facts or contentions contained in an ex parte communication which have been placed on the public record of the proceeding pursuant to paragraph (b) of this section may be filed in writing with the Commission. The Commission will grant such requests only where it determines that the dictates of fairness so require. In lieu of actually receiving rebuttal material, the Commission may in its discretion direct that the alleged factual assertion and the proposed rebuttal be disregarded in arriving at a decision.