Union Pacific Railroad Company (UP) has reported that it has gained temporary rights to use a section of track owned by BNSF Railway Company. This particular agreement allows UP to transport ballast trains, which are used for maintenance work, over a 51.7-mile stretch of rail in Oklahoma and Texas. The temporary rights will last until the end of 2021, and UP has stated that these actions are exempt from environmental and historical preservation reviews. If anyone believes this notice contains false information, they can petition to revoke the exemption, but such petitions will not delay the exemption's start date unless filed by a certain deadline.
Simple Explanation
Union Pacific Railroad Company got permission to use some train tracks owned by BNSF Railway Company for a while to help fix the tracks, and they don't need to worry about checking for environmental impacts or old things there. If someone thinks this isn't right, they can tell the authorities, but the trains can still start running unless they tell them by a special date.