The US maintains TRQs for raw and refined sugar that allocate lower in-quota duty rates to specific country shares. Imports above the quota threshold face significantly higher over-quota duties. Quota year timing, country-specific allocations, and re-export program participation all affect landed cost calculations, making TRQ management a central concern for sugar importers.

Pure sugar (sucrose) is classified in HTS Chapter 17, while products containing added sugar as an ingredient — such as syrups, confections, or blended preparations — may fall under Chapters 17, 18, or 19 depending on their composition and primary character. Sugar-containing products are generally not subject to the same TRQ as raw or refined sugar, but they may carry their own specific duty rates and, in some cases, trade remedy exposure.