49 CFR § 1108.12 - Fees and costs.
(a) Filing fees. When parties use the Board's arbitration procedures to resolve a dispute, the party filing the complaint or an answer shall pay the applicable filing fee pursuant to 49 CFR part 1002.
(b) Costs. The parties shall share the costs incurred by the Board and arbitrators equally, with each party responsible for paying its own legal and other associated arbitration costs.