Which organization regulates the railroads?

The Federal Railroad Administration (FRA) is the organization responsible for regulating railroads in the United States. Established under the Department of Transportation, its primary focus is to oversee the safety and efficiency of rail transport. The FRA develops regulations, provides financial assistance for safety programs, and conducts inspections to ensure compliance with federal rail safety laws. Its vital role includes promoting safety measures and preventing accidents on the railways, which directly impacts the well-being of passengers and freight transport.

Other organizations mentioned have different scopes of regulation. The Federal Aviation Administration (FAA) governs aviation, while the Department of Transportation (DOT) oversees all modes of transportation, including railroads but does not specifically regulate them. The Interstate Commerce Commission (ICC) was historically involved in railroad regulation, but it was dissolved in 1995, and its responsibilities were transferred to the Surface Transportation Board (STB). Thus, the unique authority of the FRA in rail regulation makes it the correct answer.