49 C.F.R. § 1109.1
The Board favors the resolution of disputes through the use of mediation and arbitration procedures, in lieu of formal Board proceedings, whenever possible. Parties may seek to resolve a dispute brought before the Board using the Board's mediation procedures. These procedures shall not be available in a regulatory proceeding to obtain the grant, denial, stay or revocation of a request for construction, abandonment, purchase, trackage rights, merger, pooling authority or exemption related to such matters. The Board may, by its own order, direct the parties to participate in mediation using the Board's mediation procedures. The Board's mediation program is open to all parties eligible to bring or defend matters before the Board.
49 C.F.R. § 1109.1