US rail regulator says Union Pacific, Norfolk Southern merger filing incomplete

Core Viewpoint - The U.S. Surface Transportation Board has returned Union Pacific's proposed $85 billion merger with Norfolk Southern for revision due to insufficient information [1] Group 1: Merger Details - Union Pacific's proposed merger with Norfolk Southern is valued at $85 billion [1] - The merger is currently under review by the U.S. Surface Transportation Board [1] Group 2: Regulatory Actions - The Surface Transportation Board indicated that the merger proposal lacked required information [1] - The board's action necessitates a revision of the merger proposal by Union Pacific [1]