9031.90.91

Analysis

HTS 9031.90.91 covers other: other under heading 9031 (measuring or checking instruments, appliances and machines, not specified or included…). US Customs collects import statistics for it under 3 ten-digit suffixes, reported in kilograms.

Goods from countries without normal trade relations pay the column 2 rate of 40% instead of nothing, so origin decides between free entry and a 40% duty.

Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 73% of the 296 tariff lines in chapter 90. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.

Census statistics map these goods to NAICS 334515 (Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals), an industry of 672 US establishments employing 29,914 people. That is the industry code a US manufacturer of the same product would normally use.

The ten-digit suffixes separate of machines for balancing mechanical… and of test benches. The duty is the same across them; the suffix matters for statistics, licensing and some quotas, and an entry needs all ten digits.