8431.43.40

Analysis

HTS 8431.43.40 covers of offshore oil and natural gas drilling and production platforms under heading 8431 (parts suitable for use solely or principally with the machinery of headings 8425 to 8430).

Goods from countries without normal trade relations pay the column 2 rate of 45% instead of nothing, so origin decides between free entry and a 45% duty.

There is no general-rate duty on this line, which puts it with roughly 61% of the 823 tariff lines in chapter 84 that are also free. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.

Census statistics map these goods to NAICS 333132 (Oil and Gas Field Machinery and Equipment Manufacturing), an industry of 622 US establishments employing 28,571 people, the industry a domestic producer of these goods reports under.

All 9 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.

The general rate of Free has not changed in any edition of the schedule since Jan 2023.