Methodology
Every number on this site is read from a named source with a date, and the page shows when it was last checked. A fact past its review date stops the site from being published until it is checked again.
Tariff numbers by digit length
Every numbered line of the current schedule is grouped by the length of its number with the dots removed; the level each length means is stated from the schedule's own structure.
Refreshed quarterly. Download the table (CSV).
Column 2 rates of duty by chapter
For each chapter the ten-digit lines whose column 2 rate differs from the general rate are counted and the most common column 2 rate is shown, re-derived from the current schedule at every export.
Refreshed quarterly. Download the table (CSV).
Customs tariff: rates of duty by chapter
For each chapter the ten-digit lines of the current schedule are counted, the share whose general rate reads Free is computed, and the most common dutiable general rate is shown; every figure is re-derived from the schedule at every export.
Refreshed quarterly. Download the table (CSV).
Harmonized code list: every chapter of the schedule
The chapter numbers and titles are transcribed from the Harmonized System nomenclature published by the World Customs Organization, cross-checked against the headings of the United States schedule; the heading and line counts and the duty-free share are computed from the current release of the schedule at every export.
Refreshed quarterly. Download the table (CSV).
HS codes for clothing: chapters 61 and 62
The headings of chapters 61 and 62 are read from the current schedule with the count of ten-digit lines under each and the share that is duty free.
Refreshed quarterly. Download the table (CSV).
HS codes for machinery: chapters 84 and 85
The headings of chapters 84 and 85 are read from the current schedule with the count of ten-digit lines under each and the share that is duty free.
Refreshed quarterly. Download the table (CSV).
HS section IX: wood, cork and plaiting materials
The headings of chapters 44 to 46 are read from the current schedule with the count of ten-digit lines under each and the share that is duty free.
Refreshed quarterly. Download the table (CSV).
HTS chapter 99: the 9903 headings
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.
Refreshed quarterly. Download the table (CSV).
Steel tariff codes: chapters 72 and 73
The headings of chapters 72 and 73 are read from the current schedule with the count of ten-digit lines under each and the share that is duty free.
Refreshed quarterly. Download the table (CSV).