3504

Analysis

Heading 3504 of the Harmonized Tariff Schedule covers peptones and their derivatives; other protein substances and their derivatives, not elsewhere specified or included; hide powder, whether or not chromed. It has 2 tariff lines.

None of its 2 lines is duty-free at the general rate. Rates run from 4% to 5% with a median of 4.5%, so the line you choose sets the duty.

Its lines are 3504.00.10 for peptones and their derivatives; other protein substances… (5%) and 3504.00.50 for peptones and their derivatives; other protein substances… (4%).

Its median rate of 4.5% sits at the 79th percentile of the headings in chapter 35.

By Census's concordance, most of its statistical lines are made by Soybean and Other Oilseed Processing (311224). Those are the NAICS industries a US producer of these goods would report under.

The heading text decides whether a product belongs here at all (General Rule of Interpretation 1); the subheadings and lines below it only apply once that is settled. Section and chapter notes can override the heading wording, so read them for borderline goods.