https://www.yahoo.com/news/u-announces- ... 32461.html
Railroads have met the PTC deadline per the FRA and NTSB ahead of the December 31st deadline. Per this article that means 57,536 miles of required track are covered by PTC.
Railroads meet PTC Deadline (finally)
Railroads meet PTC Deadline (finally)
"Ann Arbor 2373 Calling... Milkshake. Over"
All Aboard Amtrak: Northbound, Southbound, and My Hometown
All Aboard Amtrak: Northbound, Southbound, and My Hometown