Analysis
HTS 4910.00.40 covers over 0.51 mm in thickness under heading 4910 (calendars of any kind, printed, including calendar blocks).
There is no general-rate duty on this line, which puts it with roughly 100% of the 29 tariff lines in chapter 49 that are also free. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.
The other lines in the same group are 4910.00.20 (not over 0.51 mm in thickness, duty-free) and 4910.00.60 (calendars of any kind, printed, including calendar blocks…, duty-free).
Census statistics map these goods to NAICS 323111 (Commercial Printing (except Screen and Books)), an industry of 15,140 US establishments employing 280,276 people, the industry a domestic producer of these goods reports under.
All 2 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 4910.00.20 | Not over 0.51 mm in thickness | Free |
| 4910.00.60 | Calendars of any kind, printed, including calendar blocks: other | Free |