Mobile cranes are self-propelled or vehicle-mounted units capable of moving under their own power or being towed, which places them in a different SITC and HTS category than stationary tower or overhead cranes. The mobility criterion — specifically, whether the crane is mounted on a wheeled or crawler carrier — is the defining characteristic. Fixed or rail-mounted cranes fall under machinery headings rather than motor vehicle headings.

Importers should document the crane's maximum rated lifting capacity, boom type and length, carrier configuration (truck, all-terrain, or crawler), and engine specifications. These details support correct HTS classification, confirm EPA nonroad engine compliance if applicable, and may be required for any end-use or project-specific permits. Manufacturer technical sheets and the certificate of conformity are standard supporting documents.