HTS 8402.90.00 — rate composition
Base rate and applicable layers for this code, with an embedded calculator.
HTS 8402.90.00 (Steam 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: — Parts) carries an MFN general rate of 4.3% on U.S. imports; China-origin entries additionally stack Global Section 301 (CN, 12.5% tier). Example (origin CN · $10,000 · sea formal entry): duties + fees ≈ $1,727.14.Data as of 2026-10-07 (ruleset v0.3.4).
Steam 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: — Parts
USITC: 4.3%
Duty layers
| Layer | Rate | Amount | Basis |
|---|---|---|---|
Base duty (MFN) Active | 4.3% | $430.00 | HTS Column 1 general rate ↗ |
Global Section 301 (CN, 12.5% tier) In litigation | 12.5% | $1,250.00 | Trade Act 1974 §301 (global forced-labor program; FR 2026-15181 §1(a)(iii)) ↗ |
| Harbor Maintenance Fee (HMF) | 0.125% | $12.50 | 26 U.S.C. §4461 / 19 CFR 24.24 (sea & water shipments only) |
| Merchandise Processing Fee (MPF) | 0.3464% (once per entry, min $34.58 / max $670.86) | $34.64 | 19 U.S.C. §58c, FY2027 (from 2026-10-01) |
Example: origin CN · $10,000 · sea formal entry · date 2026-10-07
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U.S. full regime: MFN + 301 + 232 + MPF/HMF
Selected: Steam 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: — Parts · Base 4.3%
FAQ
What is the U.S. import tariff rate for HTS 8402.90.00?
HTS 8402.90.00 (Steam 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: — Parts) carries an MFN general rate of 4.3% on U.S. imports; China-origin entries additionally stack Global Section 301 (CN, 12.5% tier). Example (origin CN · $10,000 · sea formal entry): duties + fees ≈ $1,727.14.Data as of 2026-10-07 (ruleset v0.3.4).
Do MPF/HMF fees apply to HTS 8402.90.00?
Yes. Fees are not duties and are charged per entry: Harbor Maintenance Fee (HMF) 0.125%; Merchandise Processing Fee (MPF) 0.3464% (once per entry, min $34.58 / max $670.86). ≈ $47.14 on the $10,000 formal-entry example; postal shipments ≤$2,500 use informal entry with fixed fees instead.
How does HTS 8402.90.00 differ from an HS code and Schedule B?
All three share the same root: HS is the World Customs Organization's 6-digit international baseline; HTS is the 10-digit U.S. import classification (first 6 digits identical to HS — 8402.90.00 on this page is shown at the 8-digit HTS level); Schedule B is the U.S. export code (first 6 digits match HTS, with Census-specific 8–10 digit suffixes). Use this HTS code for U.S. import duty, and Schedule B when exporting from the U.S. Full comparison: /en/guides/hts-vs-hs-vs-schedule-b
Related codes in Chapter 84 · Nuclear reactors, boilers, machinery and mechanical appliances
- 8404.10.00Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof: — Auxiliary plant for use with boilers of heading 8402 or 8403
- 8406.81.10Steam turbines and other vapor turbines, and parts thereof: — Other turbines: — Of an output exceeding 40 MW: — Steam turbines
- 8406.82.10Steam turbines and other vapor turbines, and parts thereof: — Other turbines: — Of an output not exceeding 40 MW: — Steam turbines
- 8406.90.45Steam turbines and other vapor turbines, and parts thereof: — Parts: — Of steam turbines: — Other
- 8407.10.00Spark-ignition reciprocating or rotary internal combustion piston engines: — Aircraft engines
- 8407.21.00Spark-ignition reciprocating or rotary internal combustion piston engines: — Marine propulsion engines: — Outboard motors
- 8407.29.00Spark-ignition reciprocating or rotary internal combustion piston engines: — Marine propulsion engines: — Other
- 8407.31.00Spark-ignition reciprocating or rotary internal combustion piston engines: — Reciprocating piston engines of a kind used for the propulsion of vehicles of chapter 87: — Of a cylinder capacity not exceeding 50 cc
- 8407.32.20Spark-ignition reciprocating or rotary internal combustion piston engines: — Reciprocating piston engines of a kind used for the propulsion of vehicles of chapter 87: — Of a cylinder capacity exceeding 50 cc but not exceeding 250 cc: — To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704
- 8407.32.90Spark-ignition reciprocating or rotary internal combustion piston engines: — Reciprocating piston engines of a kind used for the propulsion of vehicles of chapter 87: — Of a cylinder capacity exceeding 50 cc but not exceeding 250 cc: — Other
- 8407.33.10Spark-ignition reciprocating or rotary internal combustion piston engines: — Reciprocating piston engines of a kind used for the propulsion of vehicles of chapter 87: — Of a cylinder capacity exceeding 250 cc but not exceeding 1,000 cc: — To be installed in tractors suitable for agricultural use
- 8407.33.30Spark-ignition reciprocating or rotary internal combustion piston engines: — Reciprocating piston engines of a kind used for the propulsion of vehicles of chapter 87: — Of a cylinder capacity exceeding 250 cc but not exceeding 1,000 cc: — To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704: — To be installed in vehicles specially designed for traveling on snow, golf carts, non-amphibious all-terrain vehicles and burden carriers
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