Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

HTS heading 8402: Steam or other vapor generating boilers (other than central heating hot water boilers capable also of producing low pressure steam); super-…

8 numbered lines under heading 8402, including 6 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 8402
HTS codeDescriptionUnitGeneralSpecialColumn 2
8402Steam or other vapor generating boilers (other than central heating hot water boilers capable also of producing low pressure steam); super-heated water boilers; parts thereof:
Steam or other vapor generating boilers:
8402.11.00.00Watertube boilers with a steam production exceeding 45 t per hourt5.2%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8402.12.00.00Watertube boilers with a steam production not exceeding 45 t per hourt4.3%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8402.19.00.00Other vapor generating boilers, including hybrid boilerst5.2%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8402.20.00.00Super-heated water boilerst3.3%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8402.90.00Parts4.3%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8402.90.00.10Heat exchangerst
8402.90.00.90Otherkg

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.