Every one of the 7,045 eight-digit US lines covered by the Section 301 China actions carries the same incremental rate - 25 percent - but the map underneath is anything but uniform. We rebuilt the full map from our structured extract of the Chapter 99 trade-action schedule, cross-checked against the USITC REST API on October 13, 2026:

• Organic chemicals lead with 692 taxed lines, followed by machinery (chapter 84) at 671, electrical machinery (chapter 85) at 448 and fish (chapter 03) at 269.
• The three legal anchors split unevenly: U.S. note 20(e)+20(f) holds 5,906 lines (83.8 pct), note 20(b) 856 (12.2 pct), 20(c)+20(d) 283 (4.0 pct).
• Fifteen chapters carry zero lines under the three 25 pct actions - including the entire apparel-and-footwear complex.
• Since the action rate stacks on the base rate, the page also publishes the base-rate census under the 25 pct layer.

Chapter-by-chapter map, free, no signup: https://exportsonar.com/guides/section-301-line-exposure-map.html?src=lemmy-dbzer0-g23

Happy to share details about the data pipeline; corrections welcome.