When a crane is designed for mounting on a road vehicle but is imported separately, it falls under 842691 as lifting machinery designed for mounting on road vehicles. If imported as an integral part of a complete vehicle, classification of the combined unit depends on which component imparts the essential character — typically the vehicle chapter — but the crane alone is properly classified here.

A straddle carrier is a wheeled vehicle designed to straddle and lift intermodal containers or similar loads between its legs, used primarily in port and logistics yards. A self-propelled crane on tires (842641) is a conventional mobile crane with a boom and hook system for general lifting. The structural form and load-handling method — straddling versus boom-and-hook — determine which subheading applies.