Harmonized Tariff Schedule of the U.S. › Chapter 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
8401.40.00.00Tariff line
Classification path
Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation; parts thereof
8401
Parts of nuclear reactors
8401.40.00.00
Rates of duty
General rate (Column 1)3.3%
SpecialFree (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 245%
Unitt
Free (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 2736
Measure flags
for origin CN, entry date 2026-10-26 · base rate 3.3%
- Section 301 forced-labor tariff (12.5%)9903.05.31Conditional+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 1 (9903.88.01)9903.88.01Applies+25%8-digit subheading 8401.40.00 is on L1
- 232 steel / aluminum / copper & derivatives9903.82.10 / .11Conditionalcapped at 15%General (all other countries) | Parts of nuclear reactors
Confirmed total 28.3% · max 40.8%Full duty breakdown →