Heading 8419 · Machinery, plant or laboratory equipment, whether or not electrically heated…
8419.50
Machinery, plant or laboratory equipment, whether or not… — Heat exchange units:
Official notices
Actions of the President, the USTR or U.S. Customs and Border Protection (CBP) that name this code.
- Jul 23, 2026 · The White House Actions by the United States in the Investigations Under Section 301 of the Trade Act of 1974 of the Acts, Policies, and Practices of 60 Economies Related to the Failure of Each Economy To Impose and Effectively Enforce a Prohibition on the Importation of Goods Produced With Forced Labor
- Jul 20, 2026 · The White House Action by the United States in the Investigation Under Section 301 of the Trade Act of 1974 of Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation
- Jun 1, 2026 · The White House Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper Into the United States
- May 28, 2026 · USTR Implementing Certain Tariff-Related Elements of a Trade and Security Agreement Between the American Institute in Taiwan and the Taipei Economic and Cultural Representative Office in the United States
- Apr 2, 2026 · The White House Strengthening Actions Taken To Adjust Imports of Aluminum, Steel, and Copper Into the United States
- Feb 20, 2026 · The White House Imposing a Temporary Import Surcharge To Address Fundamental International Payments Problems
- Dec 18, 2025 · USTR Implementing Certain Tariff-Related Elements of the Framework for a United States-Switzerland-Liechtenstein Agreement on Fair, Balanced, and Reciprocal Trade
- Dec 4, 2025 · USTR Implementing Certain Tariff-Related Elements of the U.S.-Korea Strategic Trade and Investment Deal
- Nov 20, 2025 · The White House Modifying the Scope of Tariffs on the Government of Brazil
- Nov 14, 2025 · The White House Modifying the Scope of the Reciprocal Tariffs With Respect to Certain Agricultural Products
Mentioned in Chapter 99
The parts of Chapter 99, in the 2026 HTS Revision 22, that list HTS 8419.50, a broader code that includes it, or a narrower code within it.
| U.S. note | Excerpt | Headings that refer to it |
|---|---|---|
| U.S. note 2(aa)(iv) | (iv) As provided in heading 9903.03.05, the additional duty imposed by heading 9903.03.01 shall not apply to articles the product of any country that are civil aircraft (all aircraft other than military aircraft); their engines, parts and… | 9903.03.01, 9903.03.05 |
| U.S. note 2(v)(xxii) | (xxii) As provided in heading 9903.02.76, the additional duties imposed by headings 9903.02.19, 9903.02.20, 9903.82.02 and 9903.82.04–9903.82.17 shall not apply to articles the product of the European Union that are civil aircraft (all… | 9903.01.25, 9903.01.43, 9903.01.44, 9903.01.45, 9903.01.46, 9903.01.47 and 106 more |
| U.S. note 2(v)(xxiv)(b) | (b) As provided in heading 9903.02.81, the additional duties imposed by headings 9903.02.79, 9903.02.80, 9903.82.02 and 9903.82.04–9903.82.17 shall not apply to articles the product of South Korea that are civil aircraft (all aircraft… | 9903.01.25, 9903.01.43, 9903.01.44, 9903.01.45, 9903.01.46, 9903.01.47 and 106 more |
| U.S. note 2(v)(xxv)(c) | (c) As provided in headings 9903.02.85 and 9903.02.90, the additional duties imposed by headings 9903.02.82–9903.02.83 and 9903.02.87–9903.02.88 shall not apply to articles the product of Switzerland or Liechtenstein, respectively, that… | 9903.01.25, 9903.01.43, 9903.01.44, 9903.01.45, 9903.01.46, 9903.01.47 and 107 more |
| U.S. note 2(x)(iv) | (iv) As provided in heading 9903.01.82, the additional duties imposed by heading 9903.01.77 shall not apply to articles of civil aircraft (all aircraft other than military aircraft); their engines, parts, and components; their other parts,… | 9903.01.77, 9903.01.82 |
| U.S. note 16(c)(vi) | (c) Headings 9903.82.02–9903.82.26 apply to the full customs value of articles classifiable in the provisions of the HTSUS enumerated in the following lists. For articles classified in the listed provisions that are not in chapters 72, 73,… | 9903.82.01, 9903.82.03, 9903.82.05, 9903.82.09 |
| U.S. note 19(k) | (k) The rates of duty in heading 9903.85.08 apply to all entries of derivative aluminum products classifiable in the following HTSUS provisions, unless the derivative aluminum product was processed in another country from aluminum articles… | 9903.85.68 |
| U.S. note 19(s) | (s) The rates of duty set forth in heading 9903.85.15 apply to all entries of derivative aluminum products of the United Kingdom classifiable in the following provisions of the HTSUS, unless the derivative aluminum product was processed in… | — |
| U.S. note 20(b) | (b) Heading 9903.88.01 applies to all products of China that are classified in the following 8-digit subheadings, except products of China granted an exclusion by the U.S. Trade Representative and provided for in: (1) heading 9903.88.05… | 9903.88.01 |
| U.S. note 20(q)(37) | (37) Brazed aluminum plate-fin heat exchangers, each valued not over $250 (described in statistical reporting number | 9903.88.14 |
| U.S. note 20(q)(38) | (38) Heat exchanger units, designed for use as part of a heat exchange system weighing more than 27 metric tons but not more than 32 metric tons and incorporating shell-and-tube type heat exchangers (described in statistical reporting… | 9903.88.14 |
| U.S. note 20(q)(39) | (39) Heat exchanger units, designed for use as part of a heat exchange system weighing more than 40 but not more than 44 metric tons and designed to incorporate an ethylene dichloride vent eductor liquid cooler (described in statistical… | 9903.88.14 |
| U.S. note 20(q)(40) | (40) Heat exchanger units, designed for use as part of a heat exchange system weighing more than 63.5 metric tons and not designed to operate with chilled MCB Coolers using propylene refrigerant (described in statistical reporting number | 9903.88.14 |
| U.S. note 20(q)(41) | (41) Heat exchanger units, designed for use individually or as part of a system weighing more than 63.5 metric tons and not designed to operate with chilled MCB coolers using propylene refrigerant (described in statistical reporting number | 9903.88.14 |
| U.S. note 20(q)(42) | (42) Heat exchangers, each valued not over $17,000 (described in statistical reporting number | 9903.88.14 |
| U.S. note 20(q)(43) | (43) Industrial tubular heat exchange units (described in statistical reporting number | 9903.88.14 |
| U.S. note 35(a) | (a) As provided in heading 9903.96.01, the additional duties imposed by headings 9903.01.25, 9903.82.02 and 9903.82.04–9903.82.17 shall not apply to articles of civil aircraft (all aircraft other than military aircraft); their engines,… | 9903.96.01 |
| U.S. note 35(b) | (b) As provided in heading 9903.96.02, the additional duties imposed by headings 9903.02.72, 9903.02.73, 9903.82.02 and 9903.82.04–9903.82.17 shall not apply to articles of civil aircraft (all aircraft other than military aircraft and… | 9903.96.02 |
| U.S. note 35(c) | (c) As provided in heading 9903.96.03, the additional duties imposed by headings 9903.82.02 and 9903.82.04–9903.82.19 shall not apply to articles the product of Taiwan that are civil aircraft (all aircraft other than military aircraft and… | 9903.96.03 |
| U.S. note 50(a)(iv) | (iv) As provided in heading 9903.05.05, the additional duty imposed by heading 9903.05.01 shall not apply to articles the product of Brazil that are civil aircraft (all aircraft other than military aircraft); their engines, parts and… | 9903.05.01, 9903.05.05 |
| U.S. note 51(d) | (d) As provided in heading 9903.03.16, the additional duties imposed by headings 9903.03.12–9903.03.14 shall not apply to articles of civil aircraft (all aircraft other than military aircraft and unmanned aircraft); their engines, parts… | 9903.03.16 |
| U.S. note 52(d) | (d) As provided in heading 9903.05.88, the additional duties imposed by headings 9903.05.20–9903.05.84 shall not apply to articles that are civil aircraft (all aircraft other than military aircraft); their engines, parts and components;… | 9903.05.20, 9903.05.21, 9903.05.22, 9903.05.23, 9903.05.24, 9903.05.25 and 60 more |
Being listed is not owing a duty. A note may list goods that a measure leaves out; whether a heading applies depends on the origin, the date and the product; and the measures on all the goods of a country list no code at all. The calculator says what applies.
In the tariff
- 8419Machinery, plant or laboratory equipment, whether or not electrically heated (excluding furnaces, ovens and other equipment of heading 8514), for the treatment of materials by a process involving a change of temperature such as heating, cooking, roasting, distilling, rectifying, sterilizing, pasteurizing, steaming, drying, evaporating, vaporizing, condensing or cooling, other than machinery or plant of a kind used for domestic purposes; instantaneous or storage water heaters, nonelectric; parts thereof
- 8419.50Heat exchange units
- 8419.50.10.00Brazed aluminum plate-fin heat exchangers4.2%
- 8419.50.50.00OtherFree