Applying Commercial Regain Adjustments to Multi Component Fiber Customs Declarations
Commercial regain calculations adjust oven-dry fiber weights to standardized moisture allowances, determining accurate customs blend percentages and duty.
Chapter 51 Wool
Tariff Classification
Harmonized System nomenclature categorizes animal hair and woven fabrics made from these materials under a specific trade classification. Customs authorities utilize the regulations of chapter 51 wool to assess import duties on raw, semi-processed, and finished woolen goods. This classification applies to fine or coarse animal hair, carded or combed fibers, and subsequent yarn.
Material Scope
Animal fibers covered under this trade category include sheep wool, cashmere, mohair, and alpaca. The provisions of chapter 51 wool exclude certain synthetic imitations that mimic the texture of natural hair.
Import Regulation
Customs inspectors extract samples from imported shipments to confirm the fiber diameter and processing stage. Within the framework of chapter 51 wool, different duty rates apply depending on whether the fiber has been carded or combed. This evaluation ensures correct tariff assessment at the port of entry.
The testing is performed in accredited laboratories using microscopic measurement techniques. If the diameter exceeds the limit for fine animal hair, the shipment is reclassified under a coarse hair category.
Dutiable Status
Valuation of animal hair textiles depends on the purity and yield of the raw material. The rules of chapter 51 wool govern the methods used to calculate clean yield from greasy wool. Correct classification protects importers from underpayment penalties and delays.
It also assists customs in monitoring national textile imports.