90181940

HS code 9018.19.40.00 (Chapter 90 "Optical, measuring, medical instruments"; Heading 9018 "Instruments and appliances used in medical, surgical, dental or veterinary sciences, including scientigraphic apparatus, other electromedical apparatus and sight-testing instruments"; Subheading 901819 "- - Other") under the United States tariff schedule classifies "Apparatus for functional exploratory examination, and parts and accessories thereof". United States customs apply MFN rate of Free, Column 2 rate 55%. Statutory unit of measure: No.. 17 free trade agreement preferential rates are available for this code.