The Board instituted a proceeding to explore its methodology for determining railroad revenue adequacy, as well as the revenue adequacy component used in judging the reasonableness of rail freight rates. On March 28, 2018, the Board issued a decision clarifying that a prohibition on ex parte communications in this proceeding is not applicable. The subject matter of this proceeding was also under review by the Board’s Rate Reform Task Force, which submitted its findings and recommendations on April 25, 2019. The Board held a public hearing on December 12 and 13, 2019, on revenue adequacy issues raised in the Rate Reform Task Force report, and held the hearing record open until February 13, 2020, to allow parties to supplement their testimony. On August 24, 2022 Western Coal Traffic League filed a petition for administrative action. Court action was instituted on May 5, 2023.