Phosgene is a highly toxic industrial chemical used primarily as a reactive intermediate in the synthesis of isocyanates, polycarbonates, and pharmaceuticals — its extreme hazard profile means shipments are tightly controlled under both domestic chemical safety regulations and international chemical-weapons conventions. Japan is the sole recorded US import supplier under this heading, reflecting the concentrated, safety-intensive nature of phosgene production globally. Importers must comply with EPA Risk Management Program requirements and should confirm that the exporting facility meets all applicable safety and documentation standards before shipment. Classification is straightforward at the single 10-digit line 2812110000, but regulatory clearance is the dominant compliance burden.

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