![Josh Funk Railroads rely on trackside detectors like this one along a Union Pacific line in western Iowa, seen Dec. 15, 2023, to help spot mechanical problems on trains before they can cause derailments. The Federal Railroad Administration finalized new rules Monday, May 20, 2024, that will establish training and certification standards for the workers who install and maintain these detectors and other signals along the railroads. (AP Photo/Josh Funk)](https://mapi.associatedpress.com/v2/items/92f60a95f985486d8a3381ef61a88583/preview/preview.jpg?s=680x&wm=false)
Railroads rely on trackside detectors like this one along a Union Pacific line in western Iowa, seen Dec. 15, 2023, to help spot mechanical problems on trains before they can cause derailments. The Federal Railroad Administration finalized new rules Monday, May 20, 2024, that will establish training and certification standards for the workers who install and maintain these detectors and other signals along the railroads. (AP Photo/Josh Funk)
![Josh Funk Union Pacific dispatchers keep track of trains moving across the western United States from inside the railroad's high-tech Harriman Dispatch Center, in Omaha, Neb., Dec. 15, 2023. The Federal Railroad Administration finalized new rules Monday, May 20, 2024, setting training standards for dispatchers and signal repairmen. (AP Photo/Josh Funk)](https://mapi.associatedpress.com/v2/items/612b85208ff845dd9861022faa3cade8/preview/preview.jpg?s=680x&wm=false)
Union Pacific dispatchers keep track of trains moving across the western United States from inside the railroad's high-tech Harriman Dispatch Center, in Omaha, Neb., Dec. 15, 2023. The Federal Railroad Administration finalized new rules Monday, May 20, 2024, setting training standards for dispatchers and signal repairmen. (AP Photo/Josh Funk)