Harmonized Tariff Schedule of the U.S. › Chapter 90 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments; parts and accessories
9031.49.70.00Tariff line
Classification path
Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof
9031
Other optical instruments and appliances
Other
For inspecting masks (other than photomasks) used in manufacturing semiconductor devices; for measuring surface particulate contamination on semiconductor devices
9031.49.70.00
Rates of duty
General rate (Column 1)Free
Special—
Column 250%
UnitNo.
Printed page 3045
Measure flags
for origin CN, entry date 2026-10-26 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.86ExemptexemptOn the note 52(b) general exemption list (exempt by HTS line; enter under 9903.05.86)
- China 301 List 1 (9903.88.01)9903.88.01Applies+25%8-digit subheading 9031.49.70 is on L1
Confirmed total 25% · max 25%Full duty breakdown →