The record, chapter by chapter.

Every change here names the notice it came from, the date that notice was published, and the date it takes effect. We quote rates as published. Where we could not read a document ourselves, the page says so.

16 changes · 11 chapters · last read September 7, 2026

More chapters are added as we read further. Upstream does not assign HTS codes and does not rule on CUSMA origin.

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