Yes. Powered implements (those with their own engine or motor) and unpowered implements (towed or PTO-driven attachments) often fall under different HTS headings within Chapter 84. The classification distinction matters because duty rates and Section 301 applicability can differ between the two categories.

Used implements that have been in contact with soil or plant material abroad may be subject to USDA APHIS inspection and cleaning requirements at the port of entry to prevent the introduction of foreign pests or soil pathogens. Importers should document cleaning and decontamination procedures prior to shipment to facilitate clearance.