9021.90.40.40

HS code 9021.90.40.40 (Chapter 90 "Optical, measuring, medical instruments"; Heading 9021 "Orthopaedic appliances, including crutches, surgical belts and trusses; splints and other fracture appliances; artificial parts of the body; hearing aids and other appliances which are worn or carried, or implanted in the body, to compensate for a defect or disability"; Subheading 902190 "- Other") under the United States tariff schedule classifies "For hearing aids". United States customs apply MFN rate of Free, Column 2 rate 35%. Statutory unit of measure: No..