What changed in the U.S. tariff schedule.

Three ways to read the schedule's history

By revision: what each of the 155 revisions USITC has published since the 2017 HTSA Preliminary Edition changed, line by line, with the date it took effect and the legal sources USITC lists for it (Federal Register notices, presidential proclamations and executive orders).

Between two dates: the net change from the schedule in force on one date to the schedule in force on another, however many revisions came between, narrowed to a chapter, heading or code and to the kind of change: rates, new codes, removed codes, wording, or Chapter 99 and its notes.

A heading on a date: any 4-digit heading as it stood on a past date, with lines since removed put back and lines added since left out. Before 2017, the 8-digit General and Column 2 rates from USITC's tariff database, back to 2002.

The latest revisions

• 2026 HTS Revision 23, in force November 10, 2026: 7 lines changed (7 in Chapter 99). Sources: 91 Fed. Reg. 72608; 91 Fed. Reg. 72610.
• 2026 HTS Revision 22, in force October 30, 2026: 1 line changed (1 in Chapter 99). Sources: 91 Fed. Reg. 68861.
• 2026 HTS Revision 21, in force October 9, 2026: no coded line changed. Sources: 86 Fed. Reg. 73593; 91 Fed. Reg. 64211.
• 2026 HTS Revision 20, in force September 28, 2026: 1 line changed (1 in Chapter 99). Sources: 91 Fed. Reg. 60360.
• 2026 HTS Revision 19, in force September 15, 2026: 1 line changed. Sources: 91 Fed. Reg. 58331; 91 Fed. Reg. 58339.
• 2026 HTS Revision 18, in force September 2, 2026: 8 lines changed (8 in Chapter 99). Sources: 91 Fed. Reg. 53699; 91 Fed. Reg . 55989; 91 Fed. Reg. 56538.
• 2026 HTS Revision 17, in force August 24, 2026: 7 lines changed (5 in Chapter 99). Sources: 91 Fed. Reg. 46639; 91 Fed. Reg. 46653; 91 Fed. Reg. 46663; 91 Fed. Reg. 54789.
• 2026 HTS Revision 16, in force August 14, 2026: 3 lines changed (2 in Chapter 99). Sources: 91 Fed. Reg. 50645; 484(f).
• 2026 HTS Revision 15, in force August 3, 2026: 1 line changed (1 in Chapter 99). Sources: 91 Fed. Reg. 49406.
• 2026 HTS Revision 14, in force July 31, 2026: 13 lines changed (13 in Chapter 99). Sources: 91 Fed. Reg. 47318; 91 Fed. Reg. 45516; 91 Fed. Reg. 18183.
• 2026 HTS Revision 13, in force July 28, 2026: 10,602 lines changed (101 in Chapter 99). Sources: 91 Fed. Reg. 47318.
• 2026 HTS Revision 12, in force July 21, 2026: 13 lines changed (9 in Chapter 99). Sources: 91 Fed. Reg. 45516.
• 2026 HTS Revision 11, in force July 1, 2026: 337 lines changed. Sources: 484(f).
• 2026 HTS Revision 10, in force June 8, 2026: 11 lines changed (11 in Chapter 99). Sources: 91 Fed. Reg. 34085.
• 2026 HTS Revision 9, in force May 28, 2026: 11 lines changed (11 in Chapter 99). Sources: 91 Fed. Reg. 31818.

Follow changes

An RSS feed carries one entry per revision with what it changed; readers that support WebSub are told when a new one is published. Each heading has its own feed of the revisions that change it, and a watchlist kept on your own device shows what changed in the codes you star.

• RSS feed of every revision
• Your HTS watchlist

How it is built

Each revision is compared with the one before it from the full schedules USITC publishes in its archive. A change is any difference in a coded line's printed text, rates, unit or notes, spacing aside. When the archive has no schedule file for a revision, its changes are counted in the next revision that has one. This is a record of what the schedule printed, not legal or customs advice.