Ordinary rolled rail profiles classify under 730210, while switch blades, crossing frogs, point rods, and other crossing pieces—articles that actively guide wheels through a junction—fall under 730230. The key test is whether the article is a passive structural profile or a functional switching/crossing component.

Yes. Iron and steel track construction material under heading 7302 is generally subject to Section 232 tariffs. Importers should verify the applicable tariff line and any product exclusions that may have been granted, as exclusion status can change.