CHAPTER 74 · LEGAL NOTES
Chapter 74
The 100 legal notes below govern classification under Chapter 74. They are part of the official Harmonized Tariff Schedule and are cited verbatim in CBP rulings.
As of June 9, 2026
Chapter notes
Note 1
Chapter Note 1: In this chapter the following expressions have the meanings hereby assigned to them: (a) Refined copper Metal containing at least 99.85 percent by weight of copper; or Metal containing at least 97.5 percent by weight of copper, provided that the content by weight of any other element does not exceed the limit specified in the following table: TABLE - Other elements Limiting content percent by weight Element Ag Silver 0.25 As Arsenic 0.5 Cd Cadmium 1.3 Cr Chromium 1.4 Mg Magnesium 0.8 Pb Lead 1.5 S Sulfur 0.7 Sn Tin 0.8 Te Tellurium 0.8 Zn Zinc 1 Zr Zirconium 0.3 Other elements*, each 0.3 * Other elements are, for example, Al, Be, Co, Fe, Mn, Ni, Si.
Additional U.S. notes
Note 1
Additional U.S. Note 1: The deduction provided for in additional U.S. note 1 to chapter 26 shall apply to cement copper and copper precipitates of subheading 7401.20.
Statistical notes
Note 0
Statistical Note 0: 15 mm: 7409 Of refined copper:
Note 0
Statistical Note 0: 15 mm: 7409 Of copper-tin base alloys (bronze):
Note 0
Statistical Note 0: 15 mm: 7409
Note 1
Statistical Note 1: For the purposes of this chapter, the term "beryllium copper master alloy" refers to master alloys which contain by weight at least 3 percent but not more than 10 percent beryllium. Unit Rates of Duty of Quantity Article Description Stat. Suffix Heading/ Subheading 1 2 General Special
Subheading notes
Note 1
Subheading Note 1: In this chapter the following expressions have the meanings hereby assigned to them:
footnote
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Classify under Chapter 74 with confidence
TariffLens applies the legal notes above automatically when classifying — citing the relevant note in every GRI reasoning chain.