31 C.F.R. § 589.332
The term railway sector of the Russian Federation economy includes the following activities and items produced in, sold from, purchased in, transiting, or distributed in the Russian Federation: The procurement, design, manufacture, construction, maintenance, repair, refurbishment, assembly, sale, purchase, distribution, and transportation of trains, locomotives, rail cars, and other equipment used to transport passengers and goods via trains; any materials that are used to manufacture trains or other means necessary to move the trains, such as railway lines, equipment, engineering, mechanical, or electrical systems or methods, or technology; and any infrastructure or services used to support railway operations, such as passenger ticketing and on-board food sales or services.
31 C.F.R. §589.332