Harmonized Tariff Schedule of the U.S. › Chapter 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
8403.10.00.00Tariff line
Classification path
Central heating boilers (other than those of heading 8402) and parts thereof
8403
Boilers
8403.10.00.00
Rates of duty
General rate (Column 1)Free
Special—
Column 245%
UnitNo.
Printed page 2736
Measure flags
for origin CN, entry date 2026-10-26 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.31Conditional+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 4A (9903.88.15)9903.88.15Applies+7.5%8-digit subheading 8403.10.00 is on L4A
- 232 steel / aluminum / copper & derivatives9903.82.09Conditional+25%General (all other countries) | Central heating boilers (other than those of heading 8402)
Confirmed total 7.5% · max 32.5%Full duty breakdown →