HTS code 9903
An HTS code 9903 heading is a temporary measure in chapter 99 of the United States schedule, applied on top of a product's own tariff line; the headings below list what chapter 99 currently holds.
HTS chapter 99: the 9903 headings
Chapter 99 is national and temporary by design, so its headings change with trade actions; the quarterly refresh is what keeps this list current.
Methodology
The headings of chapter 99 are read from the current schedule with the count of ten-digit lines under each; the additional duties they carry apply on top of a product's own line.
Numbers last checked .
- Chapter 99 of the United States schedule carries temporary modifications and additional duties, including the headings under 9903 used for trade actions, which apply on top of the product's own tariff line. Source (checked 2026-09-05)
- The United States schedule adds chapters 98 and 99, which hold special classification provisions and temporary legislation rather than product groups. Source (checked 2026-09-05)
- The Harmonized Tariff Schedule of the United States is published by the United States International Trade Commission and revised through the year; this site reads the current release and re-downloads it every quarter. Source (checked 2026-09-05)