49 C.F.R. § 246.407 – Request for a hearing.

(a) If adversely affected by the Board's decision, either the petitioner before the Board or the railroad involved shall have a right to an administrative proceeding as prescribed by § 246.409.
(b) To exercise that right, the adversely affected party shall file a written request for a hearing within 20 days of service of the Board's decision on that party. The request must be filed in the docket on https://www.regulations.gov that was used when the case was before the Board.
(c) A written request for a hearing must contain the following:
1. (1) The name, telephone number, and email address of the requesting party and the party's designated representative (if any);
2. (2) The name, telephone number, and email address of the respondent;
3. (3) The docket number for the case while it was before the Board;
4. (4) The specific factual issues, industry rules, regulations, or laws that the requesting party alleges need to be examined in connection with the certification decision in question; and
5. (5) The signature of the requesting party or the requesting party's representative (if any).
(d) Upon receipt of a hearing request complying with paragraph (c) of this section, FRA shall arrange for the appointment of a presiding officer who shall schedule the hearing for the earliest practicable date.
(e) If a party fails to request a hearing within the period provided in paragraph (b) of this section, the Board's decision will constitute final agency action.