The US schedule under 030289 assigns dedicated lines to specific species (e.g., sablefish, lingcod, monkfish, mahi-mahi, snapper, grouper) and uses weight thresholds (e.g., scaled fish under 6.8 kg) as additional breakpoints. Importers should first check whether the species has a named line; if not, the appropriate NESOI (not elsewhere specified or included) line applies. Commercial invoices must identify species by common and scientific name to support CBP classification review. Consulting a licensed customs broker familiar with seafood tariff schedules is advisable for novel or mixed-species shipments.

FDA requires that the importer of record maintain a seafood HACCP plan covering the imported product. Entry documentation should include a commercial invoice with species identification, country of origin, and net weight. For species subject to fishery management measures — such as sablefish under North Pacific groundfish regulations — catch certificates or vessel trip reports may be requested. Shipments from facilities on FDA import alert are subject to automatic detention and may require independent laboratory testing before release.