Optical, photographic, measuring, checking, precision, medical or surgical instruments and apparatus

The 32 headings of chapter 90

• 9001: Optical fibers and optical fiber bundles; optical fiber cables other than those of heading 8544; sheets and plates of polarizing material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any material, unmounted, other than such elements of glass not optically worked (14 codes, General duty Free to 6.7%)
• 9002: Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus, other than such elements of glass not optically worked; parts and accessories thereof (11 codes, General duty Free to 2.45%)
• 9003: Frames and mountings for spectacles, goggles or the like, and parts thereof (3 codes, General duty Free to 2.5%)
• 9004: Spectacles, goggles and the like, corrective, protective or other (3 codes, General duty 2% to 2.5%)
• 9005: Binoculars, monoculars, other optical telescopes, and mountings therefor; other astronomical instruments and mountings therefor, but not including instruments for radio-astronomy; parts and accessories thereof (8 codes, General duty Free to 8%)
• 9006: Photographic (other than cinematographic) cameras; photographic flashlight apparatus and flashbulbs other than discharge lamps of heading 8539; parts and accessories thereof (32 codes, General duty Free to 6.8%)
• 9007: Cinematographic cameras and projectors, whether or not incorporating sound recording or reproducing apparatus; parts and accessories thereof (9 codes, General duty Free to 4.9%)
• 9008: Image projectors, other than cinematographic; photographic (other than cinematographic) enlargers and reducers; parts and accessories thereof (7 codes, General duty Free to 7%)
• 9010: Apparatus and equipment for photographic (including cinematographic) laboratories, not specified or included elsewhere in this chapter; negatoscopes; projection screens; parts and accessories thereof (10 codes, General duty Free to 2.9%)
• 9011: Compound optical microscopes, including those for photomicrography, cinemicrography or microprojection; parts and accessories thereof (6 codes, General duty Free to 7.2%)
• 9012: Microscopes other than optical microscopes; diffraction apparatus; parts and accessories thereof (2 codes, General duty Free)
• 9013: Lasers, other than laser diodes; other optical appliances and instruments, not specified or included elsewhere in this chapter (11 codes, General duty Free to 16%)
• 9014: Direction finding compasses; other navigational instruments and appliances; parts and accessories thereof (19 codes, General duty Free)
• 9015: Surveying (including photogrammetrical surveying), hydrographic, oceanographic, hydrological, meteorological or geophysical instruments and appliances, excluding compasses; rangefinders; parts and accessories thereof (19 codes, General duty Free to 2.8%)
• 9016: Balances of a sensitivity of 5 cg or better, with or without weights; parts and accessories thereof (3 codes, General duty 2.9% to 3.9%)
• 9017: Drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, calipers), not specified or included elsewhere in this chapter; parts and accessories thereof (17 codes, General duty Free to 5.8%)
• 9018: Instruments and appliances used in medical, surgical, dental or veterinary sciences, including scintigraphic apparatus, other electro-medical apparatus and sight-testing instruments; parts and accessories thereof (42 codes, General duty Free)
• 9019: Mechano-therapy appliances; massage apparatus; psychological aptitude-testing apparatus; ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus; parts and accessories thereof (10 codes, General duty Free)
• 9020: Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters; parts and accessories thereof (3 codes, General duty Free to 2.5%)
• 9021: Orthopedic 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; parts and accessories thereof (13 codes, General duty Free)
• 9022: Apparatus based on the use of X-rays or of alpha, beta, gamma or other ionizing radiations, whether or not for medical, surgical, dental or veterinary uses, including radiography or radiotherapy apparatus, X-ray tubes and other X-ray generators, high tension generators, control panels and desks, screens, examination or treatment tables, chairs and the like; parts and accessories thereof (15 codes, General duty Free to 1.4%)
• 9023: Instruments, apparatus and models, designed for demonstrational purposes (for example, in education or exhibitions), unsuitable for other uses, and parts and accessories thereof (1 code, General duty Free)
• 9024: Machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics), and parts and accessories thereof (4 codes, General duty Free)
• 9025: Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not, and any combination of these instruments; parts and accessories thereof (14 codes, General duty Free to 2.9%)
• 9026: Instruments and apparatus for measuring or checking the flow, level, pressure or other variables of liquids or gases (for example, flow meters, level gauges, manometers, heat meters), excluding instruments and apparatus of heading 9014, 9015, 9028 or 9032; parts and accessories thereof (12 codes, General duty Free)
• 9027: Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes; parts and accessories thereof (44 codes, General duty Free to 1.2%)
• 9028: Gas, liquid or electricity supply or production meters, including calibrating meters thereof; parts and accessories thereof (5 codes, General duty Free to 2.5%, some per unit)
• 9029: Revolution counters, production counters, taximeters, odometers, pedometers and the like; speedometers and tachometers, other than those of heading 9014 or 9015; stroboscopes; parts and accessories thereof (11 codes, General duty Free to 6%, some per unit)
• 9030: Oscilloscopes, spectrum analyzers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of heading 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, X-ray, cosmic or other ionizing radiations; parts and accessories thereof:​ (25 codes, General duty Free to 1.7%)
• 9031: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof (21 codes, General duty Free to 1.7%)
• 9032: Automatic regulating or controlling instruments and apparatus; parts and accessories thereof (24 codes, General duty Free to 1.7%)
• 9033: Parts and accessories (not specified or included elsewhere in this chapter) for machines, appliances, instruments or apparatus of chapter 90 (3 codes, General duty Free to 4.4%)

Where it sits in the schedule

Chapter 90 is in Section XVIII of the Harmonized System, instruments, clocks and musical instruments (chapters 90 to 92). Rates are those printed in the 2026 HTS Revision 23; Chapter 99 duties (Section 232, Section 301, IEEPA) are charged on top and are not included.