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9022.90.70.00

Of smoke detectors, ionization type

Classification path

  1. 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
  2. Other, including parts and accessories
  3. Other
  4. Parts and accessories
  5. Other
  6. Of smoke detectors, ionization type

Rates of duty

General (MFN)
1%
Column 2Cuba, North Korea, Russia, Belarus
35%
Unit of quantity
No.

Trade agreement rates

FreeGSP (lapsed since Dec 31, 2020), U.S.-Australia FTA, B, U.S.-Bahrain FTA, U.S.-Chile FTA, U.S.-Colombia TPA, AGOA (authorized through Dec 31, 2026), E, U.S.-Israel FTA, U.S.-Jordan FTA, U.S.-Korea FTA, U.S.-Morocco FTA, U.S.-Oman FTA, CAFTA-DR, U.S.-Panama TPA, U.S.-Peru TPA, USMCA, U.S.-Singapore FTA

Related lines in heading 9022

About heading 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

Heading 9022 covers apparatus that works by X-rays or by alpha, beta, gamma or other ionizing radiation, plus X-ray tubes, radiation generators, and their parts and accessories. The heading splits into X-ray apparatus (9022.12 through 9022.19), apparatus using other ionizing radiations (9022.21 and 9022.29), X-ray tubes (9022.30), and a residual group for other apparatus, parts and accessories (9022.90). Most finished apparatus lines carry a Free general (MFN) rate, while several parts lines carry low percentage rates.

Full guide to heading 9022

Products in this heading

  • Computed tomography (CT) scanners
  • Dental X-ray units and dental panoramic machines
  • Medical, surgical or veterinary X-ray machines
  • X-ray baggage or cargo screening systems
  • Ionization type smoke detectors
  • X-ray tubes
  • Radiation generator units for X-ray systems
  • Radiation beam delivery units for radiotherapy machines

Frequently asked questions

What is the HTS code for a CT scanner?

Computed tomography apparatus is classified under 9022.12.00.00. The general (MFN) rate for that line is Free.

What is the duty on parts of X-ray tubes?

Parts and accessories of X-ray tubes are classified under 9022.90.40.00. The general (MFN) rate is 0.9%.

How do I classify an ionization type smoke detector and its parts?

An ionization type smoke detector is classified under 9022.29.40.00, which carries a general (MFN) rate of Free. Parts of those detectors go under 9022.90.70.00, at a general (MFN) rate of 1%.

Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.

HTS 9022.90.70.00: Of smoke detectors, ionization type, 1% duty | HTSBase