Analysis
HTS 7308.10.00 covers bridges and bridge sections under heading 7308 (structures (excluding prefabricated buildings of heading 9406) and parts of structures…).
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.
The normal trade relations rate here is zero, shared by about 77% of the 250 tariff lines in chapter 73, a useful check when a neighbouring dutiable line is a candidate. 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 332312 (Fabricated Structural Metal Manufacturing), an industry of 3,434 US establishments employing 114,153 people. That concordance is how imports of this line are compared with US output.
All 8 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.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 7308.20.00 | Towers and lattice masts | Free |
| 7308.30.10 | Of stainless steel | Free |
| 7308.30.50 | Doors, windows and their frames and thresholds for doors: other | Free |
| 7308.40.00 | Equipment for scaffolding, shuttering, propping or pit- propping | Free |
| 7308.90.30 | Not in part of alloy steel | Free |
| 7308.90.60 | Columns, pillars, posts, beams, girders and similar structural units: other | Free |
| 7308.90.70 | Other: steel grating | Free |
| 7308.90.95 | Other: other | Free |